2E76 - JenaLib

Biol.Unit 1 - manually (Jmol Viewer)

Asym.Unit - manually (Jmol Viewer)

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF THE CYTOCHROME B6F COMPLEX WITH TRIDECYL-STIGMATELLIN (TDS) FROM M.LAMINOSUS

Authors :   W. A. Cramer, E. Yamashita, H. Zhang

Date :   05 Jan 07 (Deposition) - 12 Jun 07 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   3.41

Chains :   Asym. Unit : A,B,C,D,E,F,G,H
Biol. Unit 1: A,B,C,D,E,F,G,H  (2x)

Keywords :   Photosynthesis, Cytochrome F, Rieske Iron-Sulfur Protein, Heme Cn (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   E. Yamashita, H. Zhang, W. A. Cramer
Structure Of The Cytochrome B(6)F Complex: Quinone Analogue Inhibitors As Ligands Of Heme C(N)
J. Mol. Biol. V. 370 39 2007
PubMed-ID: 17498743 | Reference-DOI: 10.1016/J.JMB.2007.04.011

Molecule 1 - CYTOCHROME B6
	Chains	:	A
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541

Molecule 2 - CYTOCHROME B6-F COMPLEX SUBUNIT 4
	Chains	:	B
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541
	Synonym	:	17 KDA POLYPEPTIDE

Molecule 3 - APOCYTOCHROME F
	Chains	:	C
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541

Molecule 4 - CYTOCHROME B6-F COMPLEX IRON-SULFUR SUBUNIT
	Chains	:	D
	EC Number	:	1.10.99.1
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541

Molecule 5 - CYTOCHROME B6-F COMPLEX SUBUNIT 6
	Chains	:	E
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541
	Synonym	:	CYTOCHROME B6-F COMPLEX SUBUNIT VI, CYTOCHROME B6-F COMPLEX SUBUNIT PETL

Molecule 6 - CYTOCHROME B6-F COMPLEX SUBUNIT 7
	Chains	:	F
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541
	Synonym	:	CYTOCHROME B6-F COMPLEX SUBUNIT VII, CYTOCHROME B6-F COMPLEX SUBUNIT PETM

Molecule 7 - CYTOCHROME B6-F COMPLEX SUBUNIT 5
	Chains	:	G
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541
	Synonym	:	CYTOCHROME B6-F COMPLEX SUBUNIT V, CYTOCHROME B6-F COMPLEX SUBUNIT PETG

Molecule 8 - CYTOCHROME B6-F COMPLEX SUBUNIT 8
	Chains	:	H
	Organism Scientific	:	MASTIGOCLADUS LAMINOSUS
	Organism Taxid	:	83541
	Synonym	:	CYTOCHROME B6-F COMPLEX SUBUNIT VIII, CYTOCHROME B6-F COMPLEX SUBUNIT PETN

		1	2	3	4	5	6	7	8
Asymmetric Unit	:	A	B	C	D	E	F	G	H
Biological Unit 1 (2x)	:	A	B	C	D	E	F	G	H

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (9, 17)

No.	Name	Count	Type	Full Name
1	BCR	1	Ligand/Ion	BETA-CAROTENE
2	CD	1	Ligand/Ion	CADMIUM ION
3	CLA	1	Ligand/Ion	CHLOROPHYLL A
4	FES	1	Ligand/Ion	FE2/S2 (INORGANIC) CLUSTER
5	HEM	4	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE
6	OPC	2	Ligand/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
7	SQD	1	Ligand/Ion	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
8	TDS	2	Ligand/Ion	8-HYDROXY-5,7-DIMETHOXY-3-METHYL-2-TRIDECYL-4H-CHROMEN-4-ONE
9	UMQ	4	Ligand/Ion	UNDECYL-MALTOSIDE

Biological Unit 1 (8, 32)

No.	Name	Count	Type	Full Name
1	BCR	2	Ligand/Ion	BETA-CAROTENE
2	CD	-1	Ligand/Ion	CADMIUM ION
3	CLA	2	Ligand/Ion	CHLOROPHYLL A
4	FES	2	Ligand/Ion	FE2/S2 (INORGANIC) CLUSTER
5	HEM	8	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE
6	OPC	4	Ligand/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
7	SQD	2	Ligand/Ion	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
8	TDS	4	Ligand/Ion	8-HYDROXY-5,7-DIMETHOXY-3-METHYL-2-TRIDECYL-4H-CHROMEN-4-ONE
9	UMQ	8	Ligand/Ion	UNDECYL-MALTOSIDE

Asymmetric Unit (17, 17)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLU A:75 , HIS C:143 , HOH C:302	BINDING SITE FOR RESIDUE CD A 216
02	AC2	SOFTWARE	GLN A:47 , PHE A:48 , GLY A:51 , PHE A:52 , MET A:54 , ARG A:83 , HIS A:86 , ARG A:87 , PHE A:131 , GLY A:132 , GLY A:135 , TYR A:136 , LEU A:138 , PRO A:139 , HIS A:187 , PHE A:189	BINDING SITE FOR RESIDUE HEM A 301
03	AC3	SOFTWARE	TYR A:34 , GLY A:37 , GLY A:38 , THR A:40 , MET A:97 , HIS A:100 , VAL A:101 , ARG A:103 , VAL A:104 , GLY A:109 , ARG A:114 , THR A:117 , TRP A:118 , GLY A:121 , VAL A:122 , LEU A:124 , HIS A:202 , PHE A:203 , ILE A:206 , ILE A:211 , SER A:212 , HEM A:303 , HOH A:1106	BINDING SITE FOR RESIDUE HEM A 302
04	AC4	SOFTWARE	TYR A:34 , CYS A:35 , GLY A:38 , LEU A:41 , PHE A:203 , ILE A:206 , ARG A:207 , GLY A:210 , ILE A:211 , HEM A:302 , HOH A:1106 , ASN B:25 , PHE B:40 , VAL B:43 , ILE B:44 , TDS B:1202	BINDING SITE FOR RESIDUE HEM A 303
05	AC5	SOFTWARE	MET A:92 , CYS B:50 , PRO C:37 , GLN C:38 , ALA E:5 , TYR F:7 , LEU G:5 , LEU G:9 , BCR G:101 , TRP H:8 , LEU H:12 , PHE H:15	BINDING SITE FOR RESIDUE OPC A 1002
06	AC6	SOFTWARE	MET A:73 , ASN A:74 , VAL A:76 , SER A:77 , PHE A:78 , TRP A:80 , HOH A:1105 , VAL B:52 , ASP C:251 , ARG C:254 , TRP C:257 , PHE C:261 , ALA D:34	BINDING SITE FOR RESIDUE UMQ A 1101
07	AC7	SOFTWARE	LEU A:12 , LEU A:17 , ASP A:20	BINDING SITE FOR RESIDUE UMQ A 1102
08	AC8	SOFTWARE	ASP A:6 , GLN A:15 , UMQ A:1104	BINDING SITE FOR RESIDUE UMQ A 1103
09	AC9	SOFTWARE	VAL A:21 , THR A:22 , UMQ A:1103 , TRP B:32 , SQD D:201	BINDING SITE FOR RESIDUE UMQ A 1104
10	BC1	SOFTWARE	ILE A:98 , TYR A:105 , TYR B:80 , PRO B:83 , VAL B:84 , ILE B:87 , VAL B:104 , LEU B:106 , LEU B:108 , ILE B:132 , PHE B:133 , GLY B:136 , THR B:140 , HOH B:211 , OPC B:1001	BINDING SITE FOR RESIDUE CLA B 201
11	BC2	SOFTWARE	TYR A:105 , LEU B:100 , GLU B:115 , ASN B:118 , ARG B:126 , PRO B:127 , VAL B:128 , ALA B:129 , CLA B:201	BINDING SITE FOR RESIDUE OPC B 1001
12	BC3	SOFTWARE	TYR A:136 , VAL A:143 , ALA A:147 , ILE A:150 , PRO A:155 , ILE B:75 , LEU B:76 , PRO B:77 , LEU B:81 , PHE B:85 , LEU B:88 , CYS D:128 , HIS D:129	BINDING SITE FOR RESIDUE TDS B 1201
13	BC4	SOFTWARE	ARG A:207 , HEM A:303 , LEU B:36 , PHE B:40 , PHE D:24	BINDING SITE FOR RESIDUE TDS B 1202
14	BC5	SOFTWARE	TYR C:1 , PRO C:2 , TRP C:4 , CYS C:22 , CYS C:25 , HIS C:26 , GLN C:60 , LEU C:70 , ASN C:71 , VAL C:72 , GLY C:73 , ALA C:74 , ASN C:154 , GLY C:156 , ARG C:157 , GLY C:158 , ILE C:160 , TYR C:161	BINDING SITE FOR RESIDUE HEM C 301
15	BC6	SOFTWARE	CYS D:108 , HIS D:110 , LEU D:111 , GLY D:112 , CYS D:126 , CYS D:128 , HIS D:129 , GLY D:130 , SER D:131	BINDING SITE FOR RESIDUE FES D 200
16	BC7	SOFTWARE	UMQ A:1104 , TRP B:32 , PRO B:33 , LYS C:275 , VAL C:279 , ARG D:16 , ASN D:20 , LEU D:21 , GLY D:25	BINDING SITE FOR RESIDUE SQD D 201
17	BC8	SOFTWARE	ILE A:39 , OPC A:1002 , ILE F:16 , TRP F:20 , ALA G:16 , GLY G:19 , GLY G:20 , PHE H:15	BINDING SITE FOR RESIDUE BCR G 101

Asymmetric Unit

No.	Residues
1	D:108	-	D:126
2	D:113	-	D:128

Asymmetric Unit

No.	Residues
1	Gly C:117	-	Pro C:118
2	Gly D:142	-	Pro D:143

(no "SAP(SNP)/Variant" information available for 2E76)

Asymmetric Unit (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CYTB_NTER	PS51002	Cytochrome b/b6 N-terminal region profile.	CYB6_MASLA	4-215	1	A:4-215
2	CYTB_CTER	PS51003	Cytochrome b/b6 C-terminal region profile.	PETD_MASLA	35-160	1	B:35-160
3	RIESKE	PS51296	Rieske [2Fe-2S] iron-sulfur domain profile.	UCRI_MASLA	61-162	1	D:61-162

Biological Unit 1 (3, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CYTB_NTER	PS51002	Cytochrome b/b6 N-terminal region profile.	CYB6_MASLA	4-215	2	A:4-215
2	CYTB_CTER	PS51003	Cytochrome b/b6 C-terminal region profile.	PETD_MASLA	35-160	2	B:35-160
3	RIESKE	PS51296	Rieske [2Fe-2S] iron-sulfur domain profile.	UCRI_MASLA	61-162	2	D:61-162

(no "Exon" information available for 2E76)

Asymmetric 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:215
 aligned with CYB6_MASLA | P83791 from UniProtKB/Swiss-Prot  Length:215

    Alignment length:215
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210     
           CYB6_MASLA     1 MANVYDWFQERLEIQALADDVTSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVTEAYASVQYIMNEVSFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWISGVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATLTRYYSAHTFVLPWLIAVFMLLHFLMIRKQGISGPL 215
               SCOP domains ------------d2e76a1 A:13-214 Cytochrome b6 subunit of the cytochrome b6f complex                                                                                                                                      - SCOP domains
               CATH domains 2e76A00 A:1-215 Cytochrome Bc1 Complex; Chain C                                                                                                                                                                         CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhh..ee....hhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhh...hhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---CYTB_NTER  PDB: A:4-215 UniProt: 4-215                                                                                                                                                                               PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2e76 A   1 MANVYDWFQERLEIQALADDVTSKYVPPHVNIFYCLGGITLTCFLIQFATGFAMTFYYKPTVTEAYASVQYIMNEVSFGWLIRSIHRWSASMMVLMMILHVFRVYLTGGFKKPRELTWISGVILAVITVSFGVTGYSLPWDQVGYWAVKIVSGVPEAIPVVGVLISDLLRGGSSVGQATLTRYYSAHTFVLPWLIAVFMLLHFLMIRKQGISGPL 215
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

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

    Alignment length:160
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160
           PETD_MASLA     1 MATLKKPDLSDPKLRAKLAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPADPFATPLEILPEWYLYPVFQILRSVPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGATFPLDKTLTLGLF 160
               SCOP domains d2e76b1 B:1-160 Subunit IV of the cytochrome b6f complex                                                                                                         SCOP domains
               CATH domains --------2e76B01 B:9-66 Cytochrome C Oxidase, chain M              2e76B02 B:67-160 plastocyanin oxidoreductase                                                   CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhhhhhh.........ee.......hhhhhhhhhhhhhhhhhhhhh......................hhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----------------------------------CYTB_CTER  PDB: B:35-160 UniProt: 35-160                                                                                       PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2e76 B   1 MATLKKPDLSDPKLRAKLAKGMGHNYYGEPAWPNDLLYVFPVVIMGTFACIVALSVLDPAMVGEPADPFATPLEILPEWYLYPVFQILRSVPNKLLGVLLMASVPLGLILVPFIENVNKFQNPFRRPVATTIFLFGTLVTIWLGIGATFPLDKTLTLGLF 160
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160

Chain C from PDB  Type:PROTEIN  Length:288
 aligned with CYF_MASLA | P83793 from UniProtKB/Swiss-Prot  Length:333

    Alignment length:288
                                    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 YPFWAQQTYPETPREPTGRIVCANCHLAAKPAEVEVPQSVLPDTVFKAVVKIPYDTKLQQVAADGSKVGLNVGAVLMLPEGFKIAPEERIPEELKKEVGDVYFQPYKEGQDNVLLVGPLPGEQYQEIVFPVLSPNPTTDKNIHFGKYAIHLGANRGRGQIYPTGEKSNNNVFTASATGTITKIAKEEDEYGNVKYQVSIQTDSGKTVVDTIPAGPELIVSEGQAVKAGEALTNNPNVGGFGQDDTEIVLQDPNRVKWMIAFICLVMLAQLMLILKKKQVEKVQAAEMN 332
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains 2e76C01 C:1-171,C:234-254  [code=2.60.40.830, no name defined]                                                                                                             2e76C02 C:172-233  [code=2.40.50.100, no name defined]        2e76C01              2e76C03 C:255-288 Single helix bin CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhh..........hhhhhh.......eee...ee....eeeeeee...................ee..eee.....ee......hhhhhhhhh....ee.......eee...ee.....eeeeeee............eeeeeeee.ee........................................eee.........eee............................ee..eeeeeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2e76 C   1 YPFWAQQTYPPTPREPTGRIVCANCHLAAKPAEVEVPQSVLPDTVFKAVVKIPYDTKLQQVAADGSKVGLNVGAVLMLPEGFKIAPEERIPEELKKEVGDVYFQPYKEGQDNVLLVGPLPGEQYQEIVFPVLSPNPTTDKNIHFGKYAIHLGANRGRGQIYPTGEKSNNNVFTASATGTITKIAKEEDEYGNVKYQVSIQTDSGKTVVDTIPAGPELIVSEGQAVKAGEALTNNPNVGGFGQDDTEIVLQDPNRVKWMIAFICLVMLAQLMLILKKKQVEKVQAAEMN 288
                                    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:171
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178 
           UCRI_MASLA     9 DVPDMGRRQFMNLLAFGTVTGVALGALYPLVKYFIPPSGGAVGGGTTAKDKLGNNVKVSKFLESHNAGDRVLVQGLKGDPTYIVVESKEAIRDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDETGKVIRGPAPLSLALCHATVQDDNIVLTPWTETDFRTGEKPWWV 179
               SCOP domains ---d2e76d2 D:12-45                   d2e76   d1 D:46-179 ISP subunit from the cytochrome b6f complex, soluble domain                                                        SCOP domains
               CATH domains ---------------------------------------2e7   6D02 D:48-179 'Rieske'-like iron-sulphur domains                                                                               CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......---............hhhhhh...........hhhhh.ee.............ee...........ee....eee......eee....................ee..ee................... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ----------------------------------------------------RIESKE  PDB: D:61-162 UniProt: 61-162                                                                 ----------------- PROSITE (3)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2e76 D   9 DVPDMGRRQFMNLLAFGTVTGVALGALYPLVKYFIPPSGGAV---TTAKDKLGNNVKVSKFLESHNAGDRVLVQGLKGDPTYIVVESKEAIRDYGINAVCTHLGCVVPWNAAENKFKCPCHGSQYDETGKVIRGPAPLSLALCHATVQDDNIVLTPWTETDFRTGEKPWWV 179
                                    18        28        38        48 |   |  58        68        78        88        98       108       118       128       138       148       158       168       178 
                                                                    50  54

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 d2e76e1 E:1-32                   SCOP domains
               CATH domains -------------------------------- CATH domains
               Pfam domains -------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------- PROSITE
                 Transcript -------------------------------- Transcript
                 2e76 E   1 MILGAVFYIVFIALFFGIAVGIIFAIKSIKLI  32
                                    10        20        30

Chain F from PDB  Type:PROTEIN  Length:32
 aligned with PETM_MASLA | P83796 from UniProtKB/Swiss-Prot  Length:35

    Alignment length:32
                                    10        20        30  
           PETM_MASLA     1 MTEEMLYAALLSFGLIFVGWGLGVLLLKIQGA  32
               SCOP domains d2e76f1 F:1-32                   SCOP domains
               CATH domains -------------------------------- CATH domains
               Pfam domains -------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------- PROSITE
                 Transcript -------------------------------- Transcript
                 2e76 F   1 MTEEMLYAALLSFGLIFVGWGLGVLLLKIQGA  32
                                    10        20        30

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

    Alignment length:37
                                    10        20        30       
           PETG_MASLA     1 MVEPLLDGLVLGLVFATLGGLFYAAYQQYKRPNELGG  37
               SCOP domains --------d2e76g1 G:9-35             -- SCOP domains
               CATH domains ------------------------------------- CATH domains
               Pfam domains ------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------- PROSITE
                 Transcript ------------------------------------- Transcript
                 2e76 G   1 MVEPLLDGLVLGLVFATLGGLFYAAYQQYKRPNELGG  37
                                    10        20        30

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

    Alignment length:29
                                    10        20         
           PETN_MASLA     1 MEIDVLGWVALLVVFTWSIAMVVWGRNGL  29
               SCOP domains --d2e76h1 H:3-29              SCOP domains
               CATH domains ----------------------------- CATH domains
               Pfam domains ----------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------- SAPs(SNPs)
                    PROSITE ----------------------------- PROSITE
                 Transcript ----------------------------- Transcript
                 2e76 H   1 MEIDVLGWVALLVVFTWSIAMVVWGRNGL  29
                                    10        20

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 '\|'

(no "Pfam Domain" information available for 2E76)

Asymmetric Unit(hide GO term definitions)

Chain A (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 (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 (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 (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 (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 (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 (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 (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.

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	2e76
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	CYB6_MASLA \| P83791
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	PETM_MASLA \| P83796
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	1.10.99.1
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Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (9, 17)

Sites (17, 17)

SS Bonds (2, 2)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (3, 3)

Exons (0, 0)

Sequences/Alignments

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SCOP Domains (8, 8)

CATH Domains (7, 7)

Pfam Domains (0, 0)

Gene Ontology (23, 85)

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