Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asym./Biol. Unit
(-)Asym./Biol. Unit - sites
collapse expand < >
Image Asym./Biol. Unit
Asym./Biol. Unit  (Jmol Viewer)
Image Asym./Biol. Unit - sites
Asym./Biol. Unit - sites  (Jmol Viewer)

(-) Description

Title :  CRYSTAL STRUCTURE OF CYTOCHROME B6F COMPLEX FROM M.LAMINOSUS
 
Authors :  G. Kurisu, H. Zhang, J. L. Smith, W. A. Cramer
Date :  08 Apr 04  (Deposition) - 20 Apr 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.00
Chains :  Asym./Biol. Unit :  A,B,C,D,E,F,G,H,N,O,P,Q,R,S,T,U
Keywords :  Photosynthesis, Membrane Protein Complex, Electron Transfer Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  G. Kurisu, H. Zhang, J. L. Smith, W. A. Cramer
Structure Of The Cytochrome B6F Complex Of Oxygenic Photosynthesis: Tuning The Cavity
Science V. 302 1009 2003
PubMed-ID: 14526088  |  Reference-DOI: 10.1126/SCIENCE.1090165
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CYTOCHROME B6
    Chains: A, N
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 2 - SUBUNIT IV
    Chains: B, O
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 3 - CYTOCHROME F
    Chains: C, P
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 4 - RIESKE IRON-SULFUR PROTEIN
    Chains: D, Q
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 5 - PROTEIN PET L
    Chains: E, R
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 6 - PROTEIN PET M
    Chains: F, S
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 7 - PROTEIN PET G
    Chains: G, T
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM
 
Molecule 8 - PROTEIN PET N
    Chains: H, U
    Organism Scientific: MASTIGOCLADUS LAMINOSUS
    Organism Taxid: 83541
    Other Details: THERMOPHILIC CYANOBACTERIUM

 Structural Features

(-) Chains, Units

  12345678910111213141516
Asymmetric/Biological Unit : ABCDEFGHNOPQRSTU

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (7, 22)

Asymmetric/Biological Unit (7, 22)
No.NameCountTypeFull Name
1BCR2Ligand/IonBETA-CAROTENE
2CLA2Ligand/IonCHLOROPHYLL A
3FES2Ligand/IonFE2/S2 (INORGANIC) CLUSTER
4HEM8Ligand/IonPROTOPORPHYRIN IX CONTAINING FE
5OPC4Ligand/Ion(7R,17E)-4-HYDROXY-N,N,N,7-TETRAMETHYL-7-[(8E)-OCTADEC-8-ENOYLOXY]-10-OXO-3,5,9-TRIOXA-4-PHOSPHAHEPTACOS-17-EN-1-AMINIUM 4-OXIDE
6PL92Ligand/Ion2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE
7TDS2Ligand/Ion8-HYDROXY-5,7-DIMETHOXY-3-METHYL-2-TRIDECYL-4H-CHROMEN-4-ONE

(-) Sites  (22, 22)

Asymmetric Unit (22, 22)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREPHE A:44 , GLN A:47 , PHE A:48 , GLY A:51 , PHE A:52 , MET A:54 , THR A:55 , TYR A:58 , VAL A:69 , ARG A:83 , HIS A:86 , ALA A:90 , MET A:93 , PHE A:131 , GLY A:135 , LEU A:138 , PRO A:139 , HIS A:187 , THR A:188 , PHE N:189BINDING SITE FOR RESIDUE HEM A 301
02AC2SOFTWARETYR A:34 , GLY A:37 , GLY A:38 , LEU A:41 , HIS A:100 , ARG A:103 , VAL A:104 , GLY A:109 , ARG A:114 , TRP A:118 , GLY A:121 , VAL A:122 , ALA A:125 , THR A:128 , MET A:199 , HIS A:202 , LYS A:208 , GLN A:209 , HEM A:303BINDING SITE FOR RESIDUE HEM A 302
03AC3SOFTWAREASN A:31 , TYR A:34 , CYS A:35 , GLY A:38 , LEU A:41 , PHE A:203 , ILE A:206 , LYS A:208 , HEM A:302 , PL9 A:305 , HOH A:306 , PHE B:40BINDING SITE FOR RESIDUE HEM A 303
04AC4SOFTWARESER A:130 , THR A:134 , TYR A:183 , ALA A:186 , VAL A:190 , PHE B:85 , LEU B:88 , CLA B:201 , OPC N:1306BINDING SITE FOR RESIDUE TDS A 304
05AC5SOFTWARETYR A:25 , HEM A:303 , OPC B:307 , THR D:28 , OPC D:306BINDING SITE FOR RESIDUE PL9 A 305
06AC6SOFTWAREPHE A:48 , PL9 A:305 , OPC B:307 , LEU D:35 , LEU D:38 , VAL D:39 , PHE D:42BINDING SITE FOR RESIDUE OPC D 306
07AC7SOFTWARELYS A:24 , PL9 A:305 , ASN B:34 , TYR B:38 , GLN D:17 , OPC D:306BINDING SITE FOR RESIDUE OPC B 307
08AC8SOFTWAREVAL A:101 , TYR A:105 , ALA A:125 , TDS A:304 , TYR B:80 , PRO B:83 , VAL B:84 , MET B:101 , ALA B:102 , VAL B:104 , ILE B:132 , PHE B:133 , GLY B:136 , THR B:140BINDING SITE FOR RESIDUE CLA B 201
09AC9SOFTWARETYR C:1 , PRO C:2 , ALA C:5 , CYS C:22 , CYS C:25 , HIS C:26 , GLN C:60 , ASN C:71 , VAL C:72 , GLY C:73 , ALA C:74 , GLY C:156 , ARG C:157 , GLY C:158 , ILE C:160 , TYR C:161BINDING SITE FOR RESIDUE HEM C 301
10BC1SOFTWARECYS D:108 , HIS D:110 , LEU D:111 , GLY D:112 , CYS D:113 , CYS D:126 , HIS D:129 , SER D:131BINDING SITE FOR RESIDUE FES D 200
11BC2SOFTWAREPHE A:33 , ILE A:39 , GLY B:46 , ALA E:13 , PHE E:16 , GLY E:17 , VAL E:20 , ILE F:16 , PHE F:17 , TRP F:20 , PHE G:22 , ALA G:25BINDING SITE FOR RESIDUE BCR E 101
12BC3SOFTWAREPHE A:189 , PHE N:44 , GLN N:47 , GLY N:51 , PHE N:52 , MET N:54 , THR N:55 , VAL N:69 , ARG N:83 , HIS N:86 , ARG N:87 , MET N:93 , PHE N:131 , GLY N:132 , GLY N:135 , PRO N:139 , HIS N:187 , THR N:188BINDING SITE FOR RESIDUE HEM N 301
13BC4SOFTWARETYR N:34 , GLY N:37 , GLY N:38 , MET N:97 , HIS N:100 , ARG N:103 , VAL N:104 , GLY N:109 , PHE N:110 , ARG N:114 , TRP N:118 , GLY N:121 , VAL N:122 , ALA N:125 , THR N:128 , MET N:199 , HIS N:202 , PHE N:203 , GLY N:210 , HEM N:303 , HOH N:1307BINDING SITE FOR RESIDUE HEM N 302
14BC5SOFTWARETYR N:34 , CYS N:35 , GLY N:38 , LEU N:41 , THR N:42 , PHE N:203 , ILE N:206 , HEM N:302 , HOH N:1307 , VAL O:39 , PHE O:40 , VAL O:43 , ILE O:44 , PL9 Q:1305 , ARG T:31BINDING SITE FOR RESIDUE HEM N 303
15BC6SOFTWARESER N:130 , THR N:134 , VAL N:151 , VAL N:154 , LEU N:169 , ARG N:182 , TYR N:183 , ALA N:186 , VAL N:190 , LEU N:191 , PRO O:77 , LEU O:81 , LEU O:88 , CLA O:1201BINDING SITE FOR RESIDUE TDS N 1304
16BC7SOFTWAREHEM N:303 , TYR O:38 , PHE Q:24 , THR Q:28 , LEU Q:38 , OPC Q:1307BINDING SITE FOR RESIDUE PL9 Q 1305
17BC8SOFTWARELEU A:168 , TDS A:304 , LEU N:200 , PHE Q:42BINDING SITE FOR RESIDUE OPC N 1306
18BC9SOFTWAREASP O:35 , TYR O:38 , LYS P:276 , GLN Q:17 , PHE Q:24 , PL9 Q:1305BINDING SITE FOR RESIDUE OPC Q 1307
19CC1SOFTWAREILE N:98 , VAL N:101 , PHE N:102 , TDS N:1304 , TYR O:80 , PRO O:83 , VAL O:84 , ILE O:87 , VAL O:104 , PRO O:105 , LEU O:106 , ILE O:132 , PHE O:133 , GLY O:136 , THR O:140BINDING SITE FOR RESIDUE CLA O 1201
20CC2SOFTWARETYR P:1 , PRO P:2 , ALA P:5 , CYS P:22 , CYS P:25 , HIS P:26 , GLN P:60 , ASN P:71 , VAL P:72 , GLY P:73 , ALA P:74 , GLY P:156 , ARG P:157 , GLY P:158 , ILE P:160 , TYR P:161BINDING SITE FOR RESIDUE HEM P 301
21CC3SOFTWARECYS Q:108 , HIS Q:110 , LEU Q:111 , GLY Q:112 , CYS Q:113 , CYS Q:126 , CYS Q:128 , HIS Q:129 , SER Q:131BINDING SITE FOR RESIDUE FES Q 1200
22CC4SOFTWAREPHE N:33 , ILE N:39 , MET N:96 , LEU N:99 , ALA R:13 , PHE R:16 , GLY R:17 , VAL R:20 , ILE S:16 , PHE S:17 , TRP S:20 , PHE T:22 , ALA T:25 , GLN T:28BINDING SITE FOR RESIDUE BCR R 1101

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1D:113 -D:128
2Q:113 -Q:128

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Gly D:142 -Pro D:143
2Gly Q:142 -Pro Q:143

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1VF5)

(-) PROSITE Motifs  (2, 4)

Asymmetric/Biological Unit (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CYTB_CTERPS51003 Cytochrome b/b6 C-terminal region profile.PETD_MASLA35-160
 		  2B:35-155
O:35-155
2RIESKEPS51296 Rieske [2Fe-2S] iron-sulfur domain profile.UCRI_MASLA61-162
 		  2D:61-162
Q:61-162

(-) Exons   (0, 0)

(no "Exon" information available for 1VF5)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:202
 aligned with CYB6_MASLA | P83791 from UniProtKB/Swiss-Prot  Length:215

    Alignment length:202
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212  
           CYB6_MASLA    13 EIQALADDVTSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVTEAYASVQYIMNEVSFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWISGVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATLTRYYSAHTFVLPWLIAVFMLLHFLMIRKQGISGP 214
               SCOP domains d1vf5a_ A: Cytochrome b6 subunit of the cytochrome b6f complex                                                                                                                                             SCOP domains
               CATH domains 1vf5A00 A:13-214 Cytochrome Bc1 Complex; Chain C                                                                                                                                                           CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...................hhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh..hhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1vf5 A  13 EIQALADDVTSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVTEAYASVQYIMNEVSFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWISGVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATLTRYYSAHTFVLPWLIAVFMLLHFLMIRKQGISGP 214
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212  


Chain B from PDB  Type:PROTEIN  Length:138
 aligned with PETD_MASLA | P83792 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:138
                                    27        37        47        57        67        77        87        97       107       117       127       137       147        
           PETD_MASLA    18 LAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPADPFATPLEILPEWYLYPVFQILRSVPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGATFPLDKTL 155
               SCOP domains d1vf5b_ B: Subunit IV of the cytochrome b6f complex                                                                                        SCOP domains
               CATH domains ---1vf5B01 B:21-66 Cytochrome C Oxidase, chain M 1vf5B02 B:67-155 plastocyanin oxidoreductase                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..............hhhhhhhhhhhhhhhhhhhhhh...........................hhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------CYTB_CTER  PDB: B:35-155 UniProt: 35-160                                                                                  PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1vf5 B  18 LAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPANPFATPLEILPEWYLYPVFQILRSLPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGAALPLDKTL 155
                                    27        37        47        57        67        77        87        97       107       117       127       137       147        


Chain C from PDB  Type:PROTEIN  Length:286
 aligned with CYF_MASLA | P83793 from UniProtKB/Swiss-Prot  Length:333

    Alignment length:286
                                    54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324      
            CYF_MASLA    45 YPFWAQQTYPETPREPTGRIVCANCHLAAKPAEVEVPQSVLPDTVFKAVVKIPYDTKLQQVAADGSKVGLNVGAVLMLPEGFKIAPEERIPEELKKEVGDVYFQPYKEGQDNVLLVGPLPGEQYQEIVFPVLSPNPTTDKNIHFGKYAIHLGANRGRGQIYPTGEKSNNNVFTASATGTITKIAKEEDEYGNVKYQVSIQTDSGKTVVDTIPAGPELIVSEGQAVKAGEALTNNPNVGGFGQDDTEIVLQDPNRVKWMIAFICLVMLAQLMLILKKKQVEKVQAAE 330
               SCOP domains d1vf5c1 C:1-169,C:232-249 Cytochrome f, large domain                                                                                                                     d1vf5c2 C:170-231 Cytochrome f, small domain                  d1vf5c1           d1vf5c3 C:250-286                     SCOP domains
               CATH domains 1vf5C01 C:1-171,C:234-254  [code=2.60.40.830, no name defined]                                                                                                             1vf5C02 C:172-233  [code=2.40.50.100, no name defined]        1vf5C01              1vf5C03 C:255-286                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhh..........hhhhhh..eeeeeeeeee.........eeeeeeeee..eeeee...eeee.eeeeeeee...eee.......hhhhhh......eee.....eeeeeee.......eeeeeeee...........eeeeeeeeeeee..eee...eeee.............eeeee.....eeeeeeeee......eeeeee........................eeeeeeeeeeee..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1vf5 C   1 YPFWAQQTYPPTPREPTGRIVCANCHLAAKPAEVEVPQSVLPDTVFKAVVKIPYDTKLQQVAADGSKVGLNVGAVLMLPEGFKIAPEERIPEELKKEVGDVYFQPYKEGQDNVLLVGPLPGEQYQEIVFPVLSPNPTTDKNIHFGKYAIHLGANRGRGQIYPTGEKSNNNVFTASATGTITKIAKEEDEYGNVKYQVSIQTDSGKTVVDTIPAGPELIVSEGQAVKAGEALTNNPNVGGFGQDDTEIVLQDPNRVKWMIAFICLVMLAQLMLILKKKQVEKVQAAE 286
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280      


Chain D from PDB  Type:PROTEIN  Length:168
 aligned with UCRI_MASLA | P83794 from UniProtKB/Swiss-Prot  Length:179

    Alignment length:168
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        
           UCRI_MASLA    12 DMGRRQFMNLLAFGTVTGVALGALYPLVKYFIPPSGGAVGGGTTAKDKLGNNVKVSKFLESHNAGDRVLVQGLKGDPTYIVVESKEAIRDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDETGKVIRGPAPLSLALCHATVQDDNIVLTPWTETDFRTGEKPWWV 179
               SCOP domains d1vf5d2 D:12-45                   d1vf5d1 D:46-179 ISP subunit from the cytochrome b6f complex, soluble domain                                                           SCOP domains
               CATH domains --------------------------------------1vf5D02 D:50-179 'Rieske'-like iron-sulphur domains                                                                                CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ......hhhhhhhhhhhhhhhhhhhhhhhhhh...........eeee......hhhhhhhh..eeeeeeeee..eeeeeeee.......eeeeeeee....eeeee....eeee....eeee...eeee.......eeeeeeee........................ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) -------------------------------------------------RIESKE  PDB: D:61-162 UniProt: 61-162                                                                 ----------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1vf5 D  12 DMGRRQFMNLLAFGTVTGVALGALYPLVKYFIPPSGGAVGGGTTAKDKLGNNVKVSKFLESHNAGDRVLVQGLKGDPTYIVVESKEAIRDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDETGRVIRGPAPLSLALCHATVQDDNIVLTPWTETDFRTGEKPWWV 179
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        


Chain E from PDB  Type:PROTEIN  Length:32
 aligned with PETL_MASLA | P83795 from UniProtKB/Swiss-Prot  Length:32

    Alignment length:32
                                    10        20        30  
           PETL_MASLA     1 MILGAVFYIVFIALFFGIAVGIIFAIKSIKLI  32
               SCOP domains d1vf5e_ E:                       SCOP domains
               CATH domains -------------------------------- CATH domains
               Pfam domains -------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------- PROSITE
                 Transcript -------------------------------- Transcript
                 1vf5 E   1 MILGAVFYIVFIALFFGIAVGIIFAIKSIKLI  32
                                    10        20        30  


Chain F from PDB  Type:PROTEIN  Length:33
 aligned with PETM_MASLA | P83796 from UniProtKB/Swiss-Prot  Length:35

    Alignment length:33
                                    10        20        30   
           PETM_MASLA     1 MTEEMLYAALLSFGLIFVGWGLGVLLLKIQGAE  33
               SCOP domains d1vf5f_ F:                        SCOP domains
               CATH domains --------------------------------- CATH domains
               Pfam domains --------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------- PROSITE
                 Transcript --------------------------------- Transcript
                 1vf5 F   1 MTEEMLYAALLSFGLIFVGWGLGVLLLKIQGAE  33
                                    10        20        30   


Chain G from PDB  Type:PROTEIN  Length:23
 aligned with PETG_MASLA | P83797 from UniProtKB/Swiss-Prot  Length:37

    Alignment length:23
                                    18        28   
           PETG_MASLA     9 LVLGLVFATLGGLFYAAYQQYKR  31
               SCOP domains d1vf5g_ G:              SCOP domains
               CATH domains ----------------------- CATH domains
               Pfam domains ----------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------- SAPs(SNPs)
                    PROSITE ----------------------- PROSITE
                 Transcript ----------------------- Transcript
                 1vf5 G   9 LVLGLVFATLGGLFYAAYQQYKR  31
                                    18        28   


Chain H from PDB  Type:PROTEIN  Length:27
 aligned with PETN_MASLA | P83798 from UniProtKB/Swiss-Prot  Length:29

    Alignment length:27
                                    12        22       
           PETN_MASLA     3 IDVLGWVALLVVFTWSIAMVVWGRNGL  29
               SCOP domains d1vf5h_ H:                  SCOP domains
               CATH domains --------------------------- CATH domains
               Pfam domains --------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------- SAPs(SNPs)
                    PROSITE --------------------------- PROSITE
                 Transcript --------------------------- Transcript
                 1vf5 H   3 IDVLGWVALLVVFTWSIAMVVWGRNGL  29
                                    12        22       


Chain N from PDB  Type:PROTEIN  Length:202
 aligned with CYB6_MASLA | P83791 from UniProtKB/Swiss-Prot  Length:215

    Alignment length:202
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212  
           CYB6_MASLA    13 EIQALADDVTSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVTEAYASVQYIMNEVSFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWISGVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATLTRYYSAHTFVLPWLIAVFMLLHFLMIRKQGISGP 214
               SCOP domains d1vf5n_ N: Cytochrome b6 subunit of the cytochrome b6f complex                                                                                                                                             SCOP domains
               CATH domains 1vf5N00 N:13-214 Cytochrome Bc1 Complex; Chain C                                                                                                                                                           CATH domains
           Pfam domains (1) ------------------------------------------------------------------------------Cytochrom_B_N_2-1vf5N01 N:91-214                                                                                             Pfam domains (1)
           Pfam domains (2) ------------------------------------------------------------------------------Cytochrom_B_N_2-1vf5N02 N:91-214                                                                                             Pfam domains (2)
         Sec.struct. author ...................hhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhh...hhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1vf5 N  13 EIQALADDVTSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVTEAYASVQYIMNEVSFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWISGVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATLTRYYSAHTFVLPWLIAVFMLLHFLMIRKQGISGP 214
                                    22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212  


Chain O from PDB  Type:PROTEIN  Length:138
 aligned with PETD_MASLA | P83792 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:138
                                    27        37        47        57        67        77        87        97       107       117       127       137       147        
           PETD_MASLA    18 LAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPADPFATPLEILPEWYLYPVFQILRSVPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGATFPLDKTL 155
               SCOP domains d1vf5o_ O: Subunit IV of the cytochrome b6f complex                                                                                        SCOP domains
               CATH domains ---1vf5O01 O:21-66 Cytochrome C Oxidase, chain M 1vf5O02 O:67-155 plastocyanin oxidoreductase                                              CATH domains
           Pfam domains (1) -----------------------------------------------Cytochrom_B_C-1vf5O01 O:65-155                                                              Pfam domains (1)
           Pfam domains (2) -----------------------------------------------Cytochrom_B_C-1vf5O02 O:65-155                                                              Pfam domains (2)
         Sec.struct. author ..............hhhhhhhhhhhhhhhhhhhhhh...........................hhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -----------------CYTB_CTER  PDB: O:35-155 UniProt: 35-160                                                                                  PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1vf5 O  18 LAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPANPFATPLEILPEWYLYPVFQILRSLPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGAALPLDKTL 155
                                    27        37        47        57        67        77        87        97       107       117       127       137       147        


Chain P from PDB  Type:PROTEIN  Length:286
 aligned with CYF_MASLA | P83793 from UniProtKB/Swiss-Prot  Length:333

    Alignment length:286
                                    54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324      
            CYF_MASLA    45 YPFWAQQTYPETPREPTGRIVCANCHLAAKPAEVEVPQSVLPDTVFKAVVKIPYDTKLQQVAADGSKVGLNVGAVLMLPEGFKIAPEERIPEELKKEVGDVYFQPYKEGQDNVLLVGPLPGEQYQEIVFPVLSPNPTTDKNIHFGKYAIHLGANRGRGQIYPTGEKSNNNVFTASATGTITKIAKEEDEYGNVKYQVSIQTDSGKTVVDTIPAGPELIVSEGQAVKAGEALTNNPNVGGFGQDDTEIVLQDPNRVKWMIAFICLVMLAQLMLILKKKQVEKVQAAE 330
               SCOP domains d1vf5p1 P:1-169,P:232-249 Cytochrome f, large domain                                                                                                                     d1vf5p2 P:170-231 Cytochrome f, small domain                  d1vf5p1           d1vf5p3 P:250-286                     SCOP domains
               CATH domains 1vf5P01 P:1-171,P:234-254  [code=2.60.40.830, no name defined]                                                                                                             1vf5P02 P:172-233  [code=2.40.50.100, no name defined]        1vf5P01              1vf5P03 P:255-286                CATH domains
           Pfam domains (1) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------Apocytochr_F_C-1vf5P01 P:168-286                                                                                        Pfam domains (1)
           Pfam domains (2) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------Apocytochr_F_C-1vf5P02 P:168-286                                                                                        Pfam domains (2)
         Sec.struct. author hhhhhhhhh..........hhhhhh..eeeeeeeeee.........eeeeeeeee..eeeee...eeee.eeeeeeee...eee.......hhhhhh......eee.....eeeeeee.......eeeeeeee...........eeeeeeeeeeee..eee...eeee.............eeeee.....eeeeeeeee......eeeeee........................eeeeeeeeeeee..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1vf5 P   1 YPFWAQQTYPPTPREPTGRIVCANCHLAAKPAEVEVPQSVLPDTVFKAVVKIPYDTKLQQVAADGSKVGLNVGAVLMLPEGFKIAPEERIPEELKKEVGDVYFQPYKEGQDNVLLVGPLPGEQYQEIVFPVLSPNPTTDKNIHFGKYAIHLGANRGRGQIYPTGEKSNNNVFTASATGTITKIAKEEDEYGNVKYQVSIQTDSGKTVVDTIPAGPELIVSEGQAVKAGEALTNNPNVGGFGQDDTEIVLQDPNRVKWMIAFICLVMLAQLMLILKKKQVEKVQAAE 286
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280      


Chain Q from PDB  Type:PROTEIN  Length:168
 aligned with UCRI_MASLA | P83794 from UniProtKB/Swiss-Prot  Length:179

    Alignment length:168
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        
           UCRI_MASLA    12 DMGRRQFMNLLAFGTVTGVALGALYPLVKYFIPPSGGAVGGGTTAKDKLGNNVKVSKFLESHNAGDRVLVQGLKGDPTYIVVESKEAIRDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDETGKVIRGPAPLSLALCHATVQDDNIVLTPWTETDFRTGEKPWWV 179
               SCOP domains d1vf5q2 Q:12-45                   d1vf5q1 Q:46-179 ISP subunit from the cytochrome b6f complex, soluble domain                                                           SCOP domains
               CATH domains ------------------------------------1vf5Q02 Q:48-179 'Rieske'-like iron-sulphur domains                                                                                  CATH domains
           Pfam domains (1) CytB6-F_Fe-S-1vf5Q03 Q:12-46       ------------------Rieske-1vf5Q01 Q:65-158                                                                       --------------------- Pfam domains (1)
           Pfam domains (2) CytB6-F_Fe-S-1vf5Q04 Q:12-46       ------------------Rieske-1vf5Q02 Q:65-158                                                                       --------------------- Pfam domains (2)
         Sec.struct. author ......hhhhhhhhhhhhhhhhhhhhhhhhhh...........eeee......hhhhhhh...eeeeeeeee..eeeeeeee.......eeeeeeee....eeeee....eeee....eeee...eeee.......eeeeeeee........................ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) -------------------------------------------------RIESKE  PDB: Q:61-162 UniProt: 61-162                                                                 ----------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1vf5 Q  12 DMGRRQFMNLLAFGTVTGVALGALYPLVKYFIPPSGGAVGGGTTAKDKLGNNVKVSKFLESHNAGDRVLVQGLKGDPTYIVVESKEAIRDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDETGRVIRGPAPLSLALCHATVQDDNIVLTPWTETDFRTGEKPWWV 179
                                    21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        


Chain R from PDB  Type:PROTEIN  Length:32
 aligned with PETL_MASLA | P83795 from UniProtKB/Swiss-Prot  Length:32

    Alignment length:32
                                    10        20        30  
           PETL_MASLA     1 MILGAVFYIVFIALFFGIAVGIIFAIKSIKLI  32
               SCOP domains d1vf5r_ R:                       SCOP domains
               CATH domains -------------------------------- CATH domains
               Pfam domains -------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------- PROSITE
                 Transcript -------------------------------- Transcript
                 1vf5 R   1 MILGAVFYIVFIALFFGIAVGIIFAIKSIKLI  32
                                    10        20        30  


Chain S from PDB  Type:PROTEIN  Length:35
 aligned with PETM_MASLA | P83796 from UniProtKB/Swiss-Prot  Length:35

    Alignment length:35
                                    10        20        30     
           PETM_MASLA     1 MTEEMLYAALLSFGLIFVGWGLGVLLLKIQGAEKE  35
               SCOP domains d1vf5s_ S:                          SCOP domains
               CATH domains ----------------------------------- CATH domains
           Pfam domains (1) --PetM-1vf5S01 S:3-34             - Pfam domains (1)
           Pfam domains (2) --PetM-1vf5S02 S:3-34             - Pfam domains (2)
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------- PROSITE
                 Transcript ----------------------------------- Transcript
                 1vf5 S   1 MTEEMLYAALLSFGLIFVGWGLGVLLLKIQGAEKE  35
                                    10        20        30     


Chain T from PDB  Type:PROTEIN  Length:27
 aligned with PETG_MASLA | P83797 from UniProtKB/Swiss-Prot  Length:37

    Alignment length:27
                                    18        28       
           PETG_MASLA     9 LVLGLVFATLGGLFYAAYQQYKRPNEL  35
               SCOP domains d1vf5t_ T:                  SCOP domains
               CATH domains --------------------------- CATH domains
           Pfam domains (1) PetG-1vf5T01 T:9-35         Pfam domains (1)
           Pfam domains (2) PetG-1vf5T02 T:9-35         Pfam domains (2)
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------- SAPs(SNPs)
                    PROSITE --------------------------- PROSITE
                 Transcript --------------------------- Transcript
                 1vf5 T   9 LVLGLVFATLGGLFYAAYQQYKRPNEL  35
                                    18        28       


Chain U from PDB  Type:PROTEIN  Length:27
 aligned with PETN_MASLA | P83798 from UniProtKB/Swiss-Prot  Length:29

    Alignment length:27
                                    12        22       
           PETN_MASLA     3 IDVLGWVALLVVFTWSIAMVVWGRNGL  29
               SCOP domains d1vf5u_ U:                  SCOP domains
               CATH domains --------------------------- CATH domains
           Pfam domains (1) PetN-1vf5U01 U:3-29         Pfam domains (1)
           Pfam domains (2) PetN-1vf5U02 U:3-29         Pfam domains (2)
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------- SAPs(SNPs)
                    PROSITE --------------------------- PROSITE
                 Transcript --------------------------- Transcript
                 1vf5 U   3 IDVLGWVALLVVFTWSIAMVVWGRNGL  29
                                    12        22
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (11, 22)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Membrane and cell surface proteins and peptides (2046)
(-)
Fold: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (46)
(-)
Fold: Heme-binding four-helical bundle (113)
(-)
Fold: Single transmembrane helix (568)
(-)
Superfamily: Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor (3)
(-)
Superfamily: ISP transmembrane anchor (35)
(-)
Superfamily: PetG subunit of the cytochrome b6f complex (8)
(-)
Superfamily: PetL subunit of the cytochrome b6f complex (7)
(-)
Superfamily: PetM subunit of the cytochrome b6f complex (9)
(-)
Superfamily: PetN subunit of the cytochrome b6f complex (9)

(-) CATH Domains  (7, 14)

Asymmetric/Biological Unit
(-)
Class: Few Secondary Structures (1120)
(-)
Class: Mainly Alpha (13335)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (8, 16)

Asymmetric/Biological Unit
(-)
Clan: 2heme_cytochrom (31)
(-)
Clan: Hybrid (58)
(-)
Clan: ISP-domain (54)
(-)
Clan: no clan defined [family: CytB6-F_Fe-S] (3)
(-)
Clan: no clan defined [family: Cytochrom_B_C] (27)
(-)
Clan: no clan defined [family: PetG] (3)
(-)
Clan: no clan defined [family: PetM] (3)
(-)
Clan: no clan defined [family: PetN] (2)

(-) Gene Ontology  (23, 85)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,N   (CYB6_MASLA | P83791)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0045158    electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity    Enables the directed movement of electrons within the cytochrome b6/f complex of photosystem II.
    GO:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0022900    electron transport chain    A process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
    GO:0022904    respiratory electron transport chain    A process in which a series of electron carriers operate together to transfer electrons from donors such as NADH and FADH2 to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain B,O   (PETD_MASLA | P83792)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0045158    electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity    Enables the directed movement of electrons within the cytochrome b6/f complex of photosystem II.
    GO:0045156    electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity    Enables the directed movement of electrons within the cyclic electron transport pathway of photosynthesis.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
    GO:0009767    photosynthetic electron transport chain    A process, occurring as part of photosynthesis, in which light provides the energy for a series of electron carriers to operate together to transfer electrons and generate a transmembrane electrochemical gradient.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain C,P   (CYF_MASLA | P83793)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0020037    heme binding    Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0031361    integral component of thylakoid membrane    The component of the thylakoid membrane consisting of the gene products having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain D,Q   (UCRI_MASLA | P83794)
molecular function
    GO:0051537    2 iron, 2 sulfur cluster binding    Interacting selectively and non-covalently with a 2 iron, 2 sulfur (2Fe-2S) cluster; this cluster consists of two iron atoms, with two inorganic sulfur atoms found between the irons and acting as bridging ligands.
    GO:0045158    electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity    Enables the directed movement of electrons within the cytochrome b6/f complex of photosystem II.
    GO:0051536    iron-sulfur cluster binding    Interacting selectively and non-covalently with an iron-sulfur cluster, a combination of iron and sulfur atoms.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016679    oxidoreductase activity, acting on diphenols and related substances as donors    Catalysis of an oxidation-reduction (redox) reaction in which a diphenol or related substance acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
    GO:0009496    plastoquinol--plastocyanin reductase activity    Catalysis of the reaction: 2 H(+)[side 1] + 2 oxidized plastocyanin + plastoquinol-1 = 2 H(+)[side 2] + 2 reduced plastocyanin + plastoquinone. This reaction involves the concomitant transfer of 2 H+ ions across a membrane.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain E,R   (PETL_MASLA | P83795)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0045158    electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity    Enables the directed movement of electrons within the cytochrome b6/f complex of photosystem II.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0009512    cytochrome b6f complex    Complex that transfers electrons from reduced plastoquinone to oxidized plastocyanin and translocates protons from the stroma to the lumen. The complex contains a core structure of three catalytic subunits: cytochrome b, the Rieske iron sulfur protein (ISP), and cytochrome f, which are arranged in an integral membrane-bound dimeric complex; additional subunits are present, and vary among different species.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain F,S   (PETM_MASLA | P83796)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0009512    cytochrome b6f complex    Complex that transfers electrons from reduced plastoquinone to oxidized plastocyanin and translocates protons from the stroma to the lumen. The complex contains a core structure of three catalytic subunits: cytochrome b, the Rieske iron sulfur protein (ISP), and cytochrome f, which are arranged in an integral membrane-bound dimeric complex; additional subunits are present, and vary among different species.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain G,T   (PETG_MASLA | P83797)
molecular function
    GO:0045158    electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity    Enables the directed movement of electrons within the cytochrome b6/f complex of photosystem II.
biological process
    GO:0017004    cytochrome complex assembly    The aggregation, arrangement and bonding together of a cytochrome complex. A cytochrome complex is a protein complex in which at least one of the proteins is a cytochrome, i.e. a heme-containing protein involved in catalysis of redox reactions.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0009512    cytochrome b6f complex    Complex that transfers electrons from reduced plastoquinone to oxidized plastocyanin and translocates protons from the stroma to the lumen. The complex contains a core structure of three catalytic subunits: cytochrome b, the Rieske iron sulfur protein (ISP), and cytochrome f, which are arranged in an integral membrane-bound dimeric complex; additional subunits are present, and vary among different species.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

Chain H,U   (PETN_MASLA | P83798)
molecular function
    GO:0009055    electron carrier activity    Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
    GO:0045158    electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity    Enables the directed movement of electrons within the cytochrome b6/f complex of photosystem II.
biological process
    GO:0017004    cytochrome complex assembly    The aggregation, arrangement and bonding together of a cytochrome complex. A cytochrome complex is a protein complex in which at least one of the proteins is a cytochrome, i.e. a heme-containing protein involved in catalysis of redox reactions.
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0009512    cytochrome b6f complex    Complex that transfers electrons from reduced plastoquinone to oxidized plastocyanin and translocates protons from the stroma to the lumen. The complex contains a core structure of three catalytic subunits: cytochrome b, the Rieske iron sulfur protein (ISP), and cytochrome f, which are arranged in an integral membrane-bound dimeric complex; additional subunits are present, and vary among different species.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.
    GO:0042651    thylakoid membrane    The pigmented membrane of any thylakoid.

 Visualization

(-) Interactive Views

Asymmetric/Biological Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
    BCR  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    CLA  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    FES  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    HEM  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    OPC  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    PL9  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
    TDS  [ RasMol | Jena3D ]  +environment [ RasMol | Jena3D ]
 
  Sites
    AC1  [ RasMol ]  +environment [ RasMol ]
    AC2  [ RasMol ]  +environment [ RasMol ]
    AC3  [ RasMol ]  +environment [ RasMol ]
    AC4  [ RasMol ]  +environment [ RasMol ]
    AC5  [ RasMol ]  +environment [ RasMol ]
    AC6  [ RasMol ]  +environment [ RasMol ]
    AC7  [ RasMol ]  +environment [ RasMol ]
    AC8  [ RasMol ]  +environment [ RasMol ]
    AC9  [ RasMol ]  +environment [ RasMol ]
    BC1  [ RasMol ]  +environment [ RasMol ]
    BC2  [ RasMol ]  +environment [ RasMol ]
    BC3  [ RasMol ]  +environment [ RasMol ]
    BC4  [ RasMol ]  +environment [ RasMol ]
    BC5  [ RasMol ]  +environment [ RasMol ]
    BC6  [ RasMol ]  +environment [ RasMol ]
    BC7  [ RasMol ]  +environment [ RasMol ]
    BC8  [ RasMol ]  +environment [ RasMol ]
    BC9  [ RasMol ]  +environment [ RasMol ]
    CC1  [ RasMol ]  +environment [ RasMol ]
    CC2  [ RasMol ]  +environment [ RasMol ]
    CC3  [ RasMol ]  +environment [ RasMol ]
    CC4  [ RasMol ]  +environment [ RasMol ]
 
  Cis Peptide Bonds
    Gly D:142 - Pro D:143   [ RasMol ]  
    Gly Q:142 - Pro Q:143   [ RasMol ]  
 

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
[ Asym./Biol. Unit PNG format | Asym./Biol. Unit - sites PNG format ](automatic orientation, automatically generated)
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick
[ mono PDF format | stereo PDF format ](default orientation, automatically generated)

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  1vf5
    Family and Domain Information: ProDom | SYSTERS
    General Structural Information: GlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in Membranes: OPM
    Protein Surface: SURFACE
    Secondary Structure: DSSP (structure derived) | HSSP (homology derived)
    Structural Genomics: GeneCensus
    Structural Neighbours: CE | VAST
    Structure Classification: CATH | Dali | SCOP
    Validation and Original Data: BMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  CYB6_MASLA | P83791
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  CYF_MASLA | P83793
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  PETD_MASLA | P83792
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  PETG_MASLA | P83797
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  PETL_MASLA | P83795
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  PETM_MASLA | P83796
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  PETN_MASLA | P83798
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
  UCRI_MASLA | P83794
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  (no 'Enzyme Classificator' available)
    General Enzyme Information: BRENDA | EC-PDB | Enzyme | IntEnz
    Pathway: KEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease Information: OMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related Information: GenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain Information: XDom
    Interatomic Contacts of Structural Units: CSU
    Ligand-protein Contacts: LPC
    Protein Cavities: castP
    Sequence and Secondary Structure: PDBCartoon
    Structure Alignment: STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence Browser: STING
 
Access by UniProt ID/Accession number
  CYB6_MASLA | P83791
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  CYF_MASLA | P83793
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  PETD_MASLA | P83792
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  PETG_MASLA | P83797
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  PETL_MASLA | P83795
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  PETM_MASLA | P83796
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  PETN_MASLA | P83798
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)
  UCRI_MASLA | P83794
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        CYB6_MASLA | P83791: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        CYF_MASLA | P83793: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        PETD_MASLA | P83792: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        PETG_MASLA | P83797: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        PETL_MASLA | P83795: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        PETM_MASLA | P83796: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        PETN_MASLA | P83798: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1
        UCRI_MASLA | P83794: 2d2c 2e74 2e75 2e76 4h0l 4h13 4i7z 4pv1

(-) Related Entries Specified in the PDB File

1ci3 THE SOLUBLE DOMAIN OF CYTOCHROME F FROM CYANOBACTERIUM
1ctm THE SOLUBLE DOMAIN OF CYTOCHROME F FROM TURNIP
1e2v THE SOLUBLE DOMAIN OF CYTOCHROME F FROM CHLAMYDOMONAS
1rfs THE SOLUBLE DOMAIN OF RIESKE IRON-SULFUR PROTEIN FROM SPINACH