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(-) Description

Title :  REACTION CENTRE FROM RHODOBACTER SPHAEROIDES STRAIN R-26.1 COMPLEXED WITH BROMINATED PHOSPHATIDYLCHOLINE
 
Authors :  A. W. Roszak, A. T. Gardiner, N. W. Isaacs, R. J. Cogdell
Date :  26 Jun 06  (Deposition) - 27 Mar 07  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.70
Chains :  Asym./Biol. Unit :  H,L,M
Keywords :  Photosynthesis, Photosynthetic Reaction Center, Lipid Binding Sites, Brominated Lipids, Membrane Protein, Photosynthesis-Membrane Protein Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. W. Roszak, A. T. Gardiner, N. W. Isaacs, R. J. Cogdell
Brominated Lipids Identify Lipid Binding Sites On The Surface Of The Reaction Center From Rhodobacter Sphaeroides
Biochemistry V. 46 2909 2007
PubMed-ID: 17315985  |  Reference-DOI: 10.1021/BI062154I

(-) Compounds

Molecule 1 - REACTION CENTER PROTEIN L CHAIN
    ChainsL
    Organism ScientificRHODOBACTER SPHAEROIDES
    Organism Taxid1063
    Other DetailsSTRAIN R-26.1 OF RHODOBACTER SPHAEROIDES BACTERIA IS A PARTIAL REVERTANT OF THE R-26 CHEMICAL MUTANT OF THE WILD-TYPE STRAIN 2.4.1. WHILE R-26 HAS NO LH2 ANTENNA AND NO CAROTENOID, THE R-26.1 HAS ALTERED LH2 ANTENNA AND NO CAROTENOID. REACTION CENTER FROM R-26.1 STRAIN IS THEREFORE IDENTICAL WITH THE WILD-TYPE STRAIN 2.4.1 EXCEPT FOR THE MISSING CAROTENOID.
    StrainR26.1
    SynonymPHOTOSYNTHETIC REACTION CENTER L SUBUNIT
 
Molecule 2 - REACTION CENTER PROTEIN M CHAIN
    ChainsM
    Organism ScientificRHODOBACTER SPHAEROIDES
    Organism Taxid1063
    Other DetailsSTRAIN R-26.1 OF RHODOBACTER SPHAEROIDES BACTERIA IS A PARTIAL REVERTANT OF THE R-26 CHEMICAL MUTANT OF THE WILD-TYPE STRAIN 2.4.1. WHILE R-26 HAS NO LH2 ANTENNA AND NO CAROTENOID, THE R-26.1 HAS ALTERED LH2 ANTENNA AND NO CAROTENOID. REACTION CENTER FROM R-26.1 STRAIN IS THEREFORE IDENTICAL WITH THE WILD-TYPE STRAIN 2.4.1 EXCEPT FOR THE MISSING CAROTENOID.
    StrainR26.1
    SynonymPHOTOSYNTHETIC REACTION CENTER M SUBUNIT
 
Molecule 3 - REACTION CENTER PROTEIN H CHAIN
    ChainsH
    Organism ScientificRHODOBACTER SPHAEROIDES
    Organism Taxid1063
    Other DetailsSTRAIN R-26.1 OF RHODOBACTER SPHAEROIDES BACTERIA IS A PARTIAL REVERTANT OF THE R-26 CHEMICAL MUTANT OF THE WILD-TYPE STRAIN 2.4.1. WHILE R-26 HAS NO LH2 ANTENNA AND NO CAROTENOID, THE R-26.1 HAS ALTERED LH2 ANTENNA AND NO CAROTENOID. REACTION CENTER FROM R-26.1 STRAIN IS THEREFORE IDENTICAL WITH THE WILD-TYPE STRAIN 2.4.1 EXCEPT FOR THE MISSING CAROTENOID.
    StrainR26.1
    SynonymPHOTOSYNTHETIC REACTION CENTER H SUBUNIT

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit HLM

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (11, 32)

Asymmetric/Biological Unit (11, 32)
No.NameCountTypeFull Name
1BCL4Ligand/IonBACTERIOCHLOROPHYLL A
2BPH2Ligand/IonBACTERIOPHEOPHYTIN A
3CDL1Ligand/IonCARDIOLIPIN
4FE1Ligand/IonFE (III) ION
5GOL4Ligand/IonGLYCEROL
6HTO1Ligand/IonHEPTANE-1,2,3-TRIOL
7K1Ligand/IonPOTASSIUM ION
8LDA10Ligand/IonLAURYL DIMETHYLAMINE-N-OXIDE
9PC92Ligand/Ion(7R,14S)-14,15-DIBROMO-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5,8-TRIOXA-4-PHOSPHAHEXACOSAN-1-AMINIUM 4-OXIDE
10PO44Ligand/IonPHOSPHATE ION
11U102Ligand/IonUBIQUINONE-10

(-) Sites  (32, 32)

Asymmetric Unit (32, 32)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREHIS L:190 , HIS L:230 , HIS M:219 , GLU M:234 , HIS M:266BINDING SITE FOR RESIDUE FE M 500
02AC2SOFTWAREMET H:134 , ALA H:137 , PHE H:140 , HOH H:1361BINDING SITE FOR RESIDUE K H 700
03AC3SOFTWAREGLU H:94 , PHE H:96 , HOH H:1410 , PHE L:24 , TRP L:25BINDING SITE FOR RESIDUE PO4 L 701
04AC4SOFTWAREHIS H:126 , GLU L:72 , TYR L:73 , LYS L:82 , THR M:21 , HOH M:1355BINDING SITE FOR RESIDUE PO4 L 702
05AC5SOFTWAREGLN M:138 , HOH M:1052 , HOH M:1151 , HOH M:1448BINDING SITE FOR RESIDUE PO4 M 703
06AC6SOFTWAREASN M:28 , GLY M:53 , SER M:54 , HOH M:1159 , HOH M:1182 , HOH M:1301 , HOH M:1303 , HOH M:1439BINDING SITE FOR RESIDUE PO4 M 704
07AC7SOFTWAREHIS L:168 , MET L:174 , ILE L:177 , SER L:178 , THR L:182 , U10 L:502 , HOH L:1006 , MET M:122 , ILE M:179 , HIS M:182 , LEU M:183 , THR M:186 , BCL M:313 , BPH M:401 , PC9 M:802 , LDA M:920BINDING SITE FOR RESIDUE BCL M 311
08AC8SOFTWAREPHE L:97 , ALA L:124 , ILE L:125 , ALA L:127 , TYR L:128 , LEU L:131 , VAL L:157 , TYR L:162 , ASN L:166 , PHE L:167 , HIS L:168 , HIS L:173 , ALA L:176 , ILE L:177 , PHE L:180 , SER L:244 , CYS L:247 , MET L:248 , BCL L:314 , BPH L:402 , BCL M:313BINDING SITE FOR RESIDUE BCL L 312
09AC9SOFTWAREVAL L:157 , TYR L:162 , PHE L:181 , BCL L:312 , PHE M:67 , ALA M:153 , LEU M:156 , LEU M:160 , THR M:186 , ASN M:187 , PHE M:189 , SER M:190 , LEU M:196 , PHE M:197 , HIS M:202 , SER M:205 , ILE M:206 , TYR M:210 , VAL M:276 , GLY M:280 , ILE M:284 , BCL M:311 , BPH M:401 , PC9 M:802BINDING SITE FOR RESIDUE BCL M 313
10BC1SOFTWARETYR L:128 , LEU L:131 , PHE L:146 , HIS L:153 , LEU L:154 , BCL L:312 , BPH L:402 , HTO L:705 , PHE M:197 , GLY M:203 , ILE M:206 , ALA M:207 , TYR M:210 , LEU M:214 , HOH M:1023BINDING SITE FOR RESIDUE BCL L 314
11BC2SOFTWAREPHE L:181 , ALA L:184 , LEU L:185 , LEU L:189 , LEU M:60 , LEU M:64 , TRP M:129 , THR M:146 , ALA M:149 , PHE M:150 , ALA M:153 , THR M:277 , BCL M:311 , BCL M:313 , PC9 M:802BINDING SITE FOR RESIDUE BPH M 401
12BC3SOFTWAREPHE L:97 , TRP L:100 , GLU L:104 , ILE L:117 , ALA L:120 , PHE L:121 , ALA L:124 , TYR L:148 , HIS L:153 , LEU L:238 , VAL L:241 , BCL L:312 , BCL L:314 , TYR M:210 , ALA M:213 , LEU M:214 , TRP M:252 , MET M:256BINDING SITE FOR RESIDUE BPH L 402
13BC4SOFTWAREPHE L:29 , TRP L:100 , ARG L:103 , HIS M:219 , THR M:222 , ALA M:248 , ALA M:249 , TRP M:252 , MET M:256 , ASN M:259 , ALA M:260 , THR M:261 , ILE M:265 , MET M:272 , PC9 M:801BINDING SITE FOR RESIDUE U10 M 501
14BC5SOFTWAREPRO L:171 , ILE L:175 , SER L:178 , THR L:182 , LEU L:189 , HIS L:190 , LEU L:193 , GLU L:212 , ASP L:213 , PHE L:216 , TYR L:222 , SER L:223 , ILE L:224 , GLY L:225 , THR L:226 , ILE L:229 , TRP L:263 , BCL M:311BINDING SITE FOR RESIDUE U10 L 502
15BC6SOFTWARETRP L:151 , BCL L:314 , HOH L:1123 , ALA M:207BINDING SITE FOR RESIDUE HTO L 705
16BC7SOFTWAREALA H:16 , TYR H:30 , ASN L:199 , PRO L:200 , GLY M:143 , LYS M:144 , HIS M:145 , TRP M:148 , ARG M:267 , TRP M:271 , HOH M:1202BINDING SITE FOR RESIDUE CDL M 800
17BC8SOFTWAREILE H:28 , GLN H:32 , TYR H:40 , LEU H:42 , ASN H:52 , GLY H:54 , LDA H:902 , LDA H:903 , PRO L:28 , HOH L:1164 , ARG M:253 , MET M:256 , GLY M:257 , PHE M:258 , MET M:272 , U10 M:501BINDING SITE FOR RESIDUE PC9 M 801
18BC9SOFTWAREVAL L:220 , SER M:30 , GLY M:31 , GLY M:33 , LEU M:47 , GLY M:48 , TRP M:129 , BCL M:311 , BCL M:313 , BPH M:401BINDING SITE FOR RESIDUE PC9 M 802
19CC1SOFTWAREALA H:25BINDING SITE FOR RESIDUE LDA H 901
20CC2SOFTWAREPC9 M:801BINDING SITE FOR RESIDUE LDA H 902
21CC3SOFTWARETYR H:18 , LDA H:904 , PC9 M:801BINDING SITE FOR RESIDUE LDA H 903
22CC4SOFTWARETRP H:21 , LDA H:903 , LDA L:905BINDING SITE FOR RESIDUE LDA H 904
23CC5SOFTWARELDA H:904 , GLN L:62BINDING SITE FOR RESIDUE LDA L 905
24CC6SOFTWAREALA L:101 , VAL L:105 , TYR L:115 , LDA L:908BINDING SITE FOR RESIDUE LDA L 906
25CC7SOFTWARESER M:8BINDING SITE FOR RESIDUE LDA M 907
26CC8SOFTWAREPHE L:119 , LDA L:906 , GLU M:2 , GLN M:4BINDING SITE FOR RESIDUE LDA L 908
27CC9SOFTWAREGLY L:76 , GLY L:77 , GLN L:87 , TRP L:142BINDING SITE FOR RESIDUE LDA L 909
28DC1SOFTWAREILE M:70 , MET M:122 , TRP M:157 , PHE M:162 , PRO M:176 , TYR M:177 , GLY M:178 , ILE M:179 , BCL M:311BINDING SITE FOR RESIDUE LDA M 920
29DC2SOFTWAREARG H:177 , PHE H:178 , GLN H:194 , CYS H:234 , SER M:227 , ARG M:228 , GLY M:230 , ARG M:233 , HOH M:1051BINDING SITE FOR RESIDUE GOL H 706
30DC3SOFTWARESER L:52 , SER L:65 , VAL L:66 , TYR L:67 , LEU L:80 , ALA L:81 , GLY L:83BINDING SITE FOR RESIDUE GOL L 707
31DC4SOFTWARETHR H:63 , PHE H:64 , HOH H:1094 , ALA L:198 , ASN L:199 , PRO L:200 , HOH L:1178 , HOH L:1326 , HOH L:1434BINDING SITE FOR RESIDUE GOL L 708
32DC5SOFTWAREGLN H:199 , ARG H:202BINDING SITE FOR RESIDUE GOL H 709

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2HG3)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Gly M:48 -Pro M:49
2Tyr H:40 -Pro H:41
3Val H:75 -Pro H:76

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2HG3)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1REACTION_CENTERPS00244 Photosynthetic reaction center proteins signature.RCEL_RHOSH167-193  1L:166-192
RCEM_RHOSH196-222  1M:195-221

(-) Exons   (0, 0)

(no "Exon" information available for 2HG3)

(-) 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 H from PDB  Type:PROTEIN  Length:240
 aligned with RCEH_RHOSH | P0C0Y7 from UniProtKB/Swiss-Prot  Length:260

    Alignment length:240
                                    20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250
           RCEH_RHOSH    11 DLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPKPKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDLPELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLEVELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGGLMYAAPKRKS 250
               SCOP domains d2hg3h1 H:11-35          d2hg3h2 H:36-250 Photosynthetic reaction centre                                                                                                                                                                         SCOP domains
               CATH domains -2hg3H01 H:12-116 Photosynthetic Reaction Center, subunit H, domain 1                                     2hg3H02 H:117-249 Photosynthetic Reaction Center, subunit H, domain 2                                                                - CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhh..........................eeeee....eeeee...........eee........eee..hhhhhhhhhhh.................eee.hhh...eeeee......eeee....eeeeeeeeeee....eeeeeeeee....eeeee.hhhee....eee...hhhhh............hhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2hg3 H  11 DLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPKPKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDLPELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLEVELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGGLMYAAPKRKS 250
                                    20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250

Chain L from PDB  Type:PROTEIN  Length:281
 aligned with RCEL_RHOSH | P0C0Y8 from UniProtKB/Swiss-Prot  Length:282

    Alignment length:281
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281 
           RCEL_RHOSH     2 ALLSFERKYRVPGGTLVGGNLFDFWVGPFYVGFFGVATFFFAALGIILIAWSAVLQGTWNPQLISVYPPALEYGLGGAPLAKGGLWQIITICATGAFVSWALREVEICRKLGIGYHIPFAFAFAILAYLTLVLFRPVMMGAWGYAFPYGIWTHLDWVSNTGYTYGNFHYNPAHMIAISFFFTNALALALHGALVLSAANPEKGKEMRTPDHEDTFFRDLVGYSIGTLGIHRLGLLLSLSAVFFSALCMIITGTIWFDQWVDWWQWWVKLPWWANIPGGING 282
               SCOP domains d2hg3l_ L: automated matches                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 2hg3L01 L:1-163 Membrane spanning alpha-helix pairs                                                                                                                2hg3L02 L:164-263 Membrane spanning alpha-helix pairs                                               ------------------ CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhhhh..............ee..eehhhhhhhhhhhhhhhhhhhhhhhhhhh............hhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------REACTION_CENTER            ----------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2hg3 L   1 ALLSFERKYRVPGGTLVGGNLFDFWVGPFYVGFFGVATFFFAALGIILIAWSAVLQGTWNPQLISVYPPALEYGLGGAPLAKGGLWQIITICATGAFVSWALREVEICRKLGIGYHIPFAFAFAILAYLTLVLFRPVMMGAWGYAFPYGIWTHLDWVSNTGYTYGNFHYNPAHMIAISFFFTNALALALHGALVLSAANPEKGKEMRTPDHEDTFFRDLVGYSIGTLGIHRLGLLLSLSAVFFSALCMIITGTIWFDQWVDWWQWWVKLPWWANIPGGING 281
                                    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 M from PDB  Type:PROTEIN  Length:302
 aligned with RCEM_RHOSH | P0C0Y9 from UniProtKB/Swiss-Prot  Length:308

    Alignment length:302
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301  
           RCEM_RHOSH     2 AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALFWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNHG 303
               SCOP domains d2hg3m_ M: automated matches                                                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 2hg3M01 M:1-143 Membrane spanning alpha-helix pairs                                                                                            2hg3M02 M:144-302 Membrane spanning alpha-helix pairs                                                                                                           CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........eeee...........hhhhh......hhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhh.........hhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhh.hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------REACTION_CENTER            --------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2hg3 M   1 AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALFWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNHG 302
                                    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       290       300  

   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  (3, 4)

Asymmetric/Biological Unit

(-) CATH Domains  (3, 6)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2HG3)

(-) Gene Ontology  (13, 37)

Asymmetric/Biological Unit(hide GO term definitions)
Chain H   (RCEH_RHOSH | P0C0Y7)
molecular function
    GO:0042314    bacteriochlorophyll binding    Interacting selectively and non-covalently with bacteriochlorophyll, a form of chlorophyll found in photosynthetic bacteria, such as the purple and green bacteria. There are several types, designated a to g. Bacteriochlorophyll a and bacteriochlorophyll b are structurally similar to the chlorophyll a and chlorophyll b found in plants.
    GO:0016168    chlorophyll binding    Interacting selectively and non-covalently with chlorophyll; any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment.
    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.
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:0019684    photosynthesis, light reaction    The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
    GO:0018298    protein-chromophore linkage    The covalent or noncovalent attachment of a chromophore to a protein.
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:0030077    plasma membrane light-harvesting complex    A plasma membrane protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center. Examples of this complex are found in bacterial species.
    GO:0042717    plasma membrane-derived chromatophore membrane    The lipid bilayer associated with a plasma membrane-derived chromatophore; surrounds chromatophores that form complete vesicles.

Chain L   (RCEL_RHOSH | P0C0Y8)
molecular function
    GO:0042314    bacteriochlorophyll binding    Interacting selectively and non-covalently with bacteriochlorophyll, a form of chlorophyll found in photosynthetic bacteria, such as the purple and green bacteria. There are several types, designated a to g. Bacteriochlorophyll a and bacteriochlorophyll b are structurally similar to the chlorophyll a and chlorophyll b found in plants.
    GO:0016168    chlorophyll binding    Interacting selectively and non-covalently with chlorophyll; any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment.
    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: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.
    GO:0019684    photosynthesis, light reaction    The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
    GO:0009772    photosynthetic electron transport in photosystem II    A photosynthetic electron transport chain in which electrons move from the primary electron acceptor (Quinone, Q) through a chain of electron transport molecules in the thylakoid membrane until they reach the ultimate electron acceptor of Photosystem II, which is plastocyanin (PC). The electron is then passed to the P700 chlorophyll a molecules of the reaction centre of photosystem I.
    GO:0018298    protein-chromophore linkage    The covalent or noncovalent attachment of a chromophore to a protein.
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:0030077    plasma membrane light-harvesting complex    A plasma membrane protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center. Examples of this complex are found in bacterial species.
    GO:0042717    plasma membrane-derived chromatophore membrane    The lipid bilayer associated with a plasma membrane-derived chromatophore; surrounds chromatophores that form complete vesicles.

Chain M   (RCEM_RHOSH | P0C0Y9)
molecular function
    GO:0042314    bacteriochlorophyll binding    Interacting selectively and non-covalently with bacteriochlorophyll, a form of chlorophyll found in photosynthetic bacteria, such as the purple and green bacteria. There are several types, designated a to g. Bacteriochlorophyll a and bacteriochlorophyll b are structurally similar to the chlorophyll a and chlorophyll b found in plants.
    GO:0016168    chlorophyll binding    Interacting selectively and non-covalently with chlorophyll; any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment.
    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: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.
    GO:0019684    photosynthesis, light reaction    The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
    GO:0009772    photosynthetic electron transport in photosystem II    A photosynthetic electron transport chain in which electrons move from the primary electron acceptor (Quinone, Q) through a chain of electron transport molecules in the thylakoid membrane until they reach the ultimate electron acceptor of Photosystem II, which is plastocyanin (PC). The electron is then passed to the P700 chlorophyll a molecules of the reaction centre of photosystem I.
    GO:0018298    protein-chromophore linkage    The covalent or noncovalent attachment of a chromophore to a protein.
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:0030077    plasma membrane light-harvesting complex    A plasma membrane protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center. Examples of this complex are found in bacterial species.
    GO:0042717    plasma membrane-derived chromatophore membrane    The lipid bilayer associated with a plasma membrane-derived chromatophore; surrounds chromatophores that form complete vesicles.

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 Related Entries

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

UniProtKB/Swiss-Prot
        RCEH_RHOSH | P0C0Y71aig 1aij 1ds8 1dv3 1dv6 1e14 1e6d 1f6n 1fnp 1fnq 1jgw 1jgx 1jgy 1jgz 1jh0 1k6l 1k6n 1kby 1l9b 1l9j 1m3x 1mps 1ogv 1pcr 1pss 1pst 1qov 1rg5 1rgn 1rqk 1rvj 1ry5 1rzh 1rzz 1s00 1umx 1yf6 1yst 1z9j 1z9k 2bnp 2bns 2boz 2gmr 2gnu 2hg9 2hh1 2hhk 2hit 2hj6 2j8c 2j8d 2jiy 2jj0 2rcr 2uws 2uwt 2uwu 2uwv 2uww 2ux3 2ux4 2ux5 2uxj 2uxk 2uxl 2uxm 2wx5 3dsy 3dta 3dtr 3dts 3du2 3du3 3duq 3i4d 3v3y 3v3z 3zum 3zuw 4h99 4h9l 4hbh 4hbj 4in5 4in6 4in7 4lwy 4n7k 4n7l 4rcr 4tqq 4v9g 5lse 5v33
        RCEL_RHOSH | P0C0Y81aig 1aij 1ds8 1dv3 1dv6 1e14 1e6d 1f6n 1fnp 1fnq 1jgw 1jgx 1jgy 1jgz 1jh0 1k6l 1k6n 1kby 1l9b 1l9j 1m3x 1mps 1ogv 1pcr 1pss 1pst 1qov 1rg5 1rgn 1rqk 1rvj 1ry5 1rzh 1rzz 1s00 1umx 1yf6 1yst 1z9j 1z9k 2bnp 2bns 2boz 2gmr 2gnu 2hg9 2hh1 2hhk 2hit 2hj6 2j8c 2j8d 2jiy 2jj0 2rcr 2uws 2uwt 2uwu 2uwv 2uww 2ux3 2ux4 2ux5 2uxj 2uxk 2uxl 2uxm 2wx5 3dsy 3dta 3dtr 3dts 3du2 3du3 3duq 3i4d 3v3y 3v3z 3zum 3zuw 4h99 4h9l 4hbh 4hbj 4in5 4in6 4in7 4lwy 4n7k 4n7l 4rcr 4tqq 4v9g 5lse 5v33
        RCEM_RHOSH | P0C0Y91aig 1aij 1ds8 1dv3 1dv6 1e14 1e6d 1f6n 1fnp 1fnq 1jgw 1jgx 1jgy 1jgz 1jh0 1k6l 1k6n 1kby 1l9b 1l9j 1m3x 1mps 1ogv 1pcr 1pss 1pst 1qov 1rg5 1rgn 1rqk 1rvj 1ry5 1rzh 1rzz 1s00 1umx 1yf6 1yst 1z9j 1z9k 2bnp 2bns 2boz 2gmr 2gnu 2hg9 2hh1 2hhk 2hit 2hj6 2j8c 2j8d 2jiy 2jj0 2rcr 2uws 2uwt 2uwu 2uwv 2uww 2ux3 2ux4 2ux5 2uxj 2uxk 2uxl 2uxm 2wx5 3dsy 3dta 3dtr 3dts 3du2 3du3 3duq 3i4d 3v3y 3v3z 3zum 3zuw 4h99 4h9l 4hbh 4hbj 4in5 4in6 4in7 4lwy 4n7k 4n7l 4rcr 4tqq 4v9g 5lse 5v33

(-) Related Entries Specified in the PDB File

2hg9 2hh1 2hhk 2hit 2hj6