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(-) Description

Title :  PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES STRAIN RV
 
Authors :  A. G. Gabdulkhakov, T. Y. Fufina, L. G. Vasilieva, V. A. Shuvalov
Date :  14 Dec 11  (Deposition) - 14 Mar 12  (Release) - 27 Jun 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  H,L,M
Keywords :  Photosynthetic Reaction Center, Primary Electron Donor, Membrane, Electron Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. G. Vasilieva, T. Y. Fufina, A. G. Gabdulkhakov, M. M. Leonova, R. A. Khatypov, V. A. Shuvalov
The Site-Directed Mutation I(L177)H In Rhodobacter Sphaeroides Reaction Center Affects Coordination Of P(A) An B(B) Bacteriochlorophylls.
Biochim. Biophys. Acta V. 1817 1407 2012
PubMed-ID: 22365928  |  Reference-DOI: 10.1016/J.BBABIO.2012.02.008

(-) Compounds

Molecule 1 - REACTION CENTER PROTEIN H CHAIN
    Chains: H
    Engineered: YES
    Expression System: RHODOBACTER SPHAEROIDES
    Expression System Plasmid: PREH-D2 L177
    Expression System Strain: DD13
    Expression System Taxid: 1063
    Expression System Vector Type: PLASMID
    Gene: PUHA
    Organism Scientific: RHODOBACTER SPHAEROIDES
    Organism Taxid: 1063
    Synonym: PHOTOSYNTHETIC REACTION CENTER H SUBUNIT
 
Molecule 2 - REACTION CENTER PROTEIN L CHAIN
    Chains: L
    Engineered: YES
    Expression System: RHODOBACTER SPHAEROIDES
    Expression System Plasmid: PREH-D2 L177
    Expression System Strain: DD13
    Expression System Taxid: 1063
    Expression System Vector Type: PLASMID
    Gene: PUFL
    Organism Scientific: RHODOBACTER SPHAEROIDES
    Organism Taxid: 1063
    Synonym: PHOTOSYNTHETIC REACTION CENTER L SUBUNIT
 
Molecule 3 - REACTION CENTER PROTEIN M CHAIN
    Chains: M
    Engineered: YES
    Expression System: RHODOBACTER SPHAEROIDES
    Expression System Plasmid: PREH-D2 L177
    Expression System Strain: DD13
    Expression System Taxid: 1063
    Expression System Vector Type: PLASMID
    Gene: PUFM
    Organism Scientific: RHODOBACTER SPHAEROIDES
    Organism Taxid: 1063
    Synonym: PHOTOSYNTHETIC REACTION CENTER M SUBUNIT

 Structural Features

(-) Chains, Units

  123
Asymmetric/Biological Unit : HLM

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (9, 25)

Asymmetric/Biological Unit (9, 25)
No.NameCountTypeFull Name
1BCL4Ligand/IonBACTERIOCHLOROPHYLL A
2BPH2Ligand/IonBACTERIOPHEOPHYTIN A
3CL1Ligand/IonCHLORIDE ION
4DIO3Ligand/Ion1,4-DIETHYLENE DIOXIDE
5FE1Ligand/IonFE (III) ION
6LDA8Ligand/IonLAURYL DIMETHYLAMINE-N-OXIDE
7PO43Ligand/IonPHOSPHATE ION
8SPN1Ligand/IonSPEROIDENONE
9U102Ligand/IonUBIQUINONE-10

(-) Sites  (25, 25)

Asymmetric Unit (25, 25)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLN H:32 , TYR H:40 , GLY H:54 , PHE H:56 , ARG M:253 , U10 M:501 , LDA M:701 , LDA M:707BINDING SITE FOR RESIDUE LDA H 702
02AC2SOFTWAREPHE H:23 , GLY H:26 , LEU H:27 , TYR H:30 , LDA M:703 , PO4 M:800BINDING SITE FOR RESIDUE LDA H 704
03AC3SOFTWARETRP H:21BINDING SITE FOR RESIDUE LDA H 709
04AC4SOFTWAREPHE L:97 , ALA L:124 , ILE L:125 , ALA L:127 , 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 , SER L:244 , CYS L:247 , MET L:248 , BPH L:402 , TYR M:210 , BCL M:304 , BCL M:305BINDING SITE FOR RESIDUE BCL L 302
05AC5SOFTWAREALA L:42 , ILE L:49 , ALA L:93 , ALA L:96 , PHE L:97 , TRP L:100 , GLU L:104 , ILE L:117 , ALA L:120 , PHE L:121 , ALA L:124 , TYR L:148 , LEU L:238 , VAL L:241 , BCL L:302 , TYR M:210 , ALA M:213 , LEU M:214 , MET M:218 , TRP M:252 , BCL M:305BINDING SITE FOR RESIDUE BPH L 402
06AC6SOFTWAREILE L:175 , THR L:178 , PHE L:179 , LEU L:189 , HIS L:190 , LEU L:193 , PHE L:216 , SER L:223 , ILE L:224 , GLY L:225 , THR L:226 , ILE L:229BINDING SITE FOR RESIDUE U10 L 502
07AC7SOFTWARETRP L:263 , TRP L:266 , PHE M:90 , HOH M:313BINDING SITE FOR RESIDUE DIO L 900
08AC8SOFTWARESER L:239BINDING SITE FOR RESIDUE DIO L 901
09AC9SOFTWAREHIS L:168 , MET L:174 , THR L:178 , PHE L:181 , THR L:182 , HOH L:282 , LEU M:89 , MET M:122 , LEU M:160 , ILE M:179 , HIS M:182 , LEU M:183 , THR M:186 , BCL M:304 , BPH M:401 , SPN M:600BINDING SITE FOR RESIDUE BCL M 303
10BC1SOFTWAREVAL L:157 , TYR L:162 , HIS L:168 , PHE L:181 , BCL L:302 , ALA M:153 , LEU M:156 , TRP M:157 , 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:303 , BPH M:401BINDING SITE FOR RESIDUE BCL M 304
11BC2SOFTWAREILE L:46 , TYR L:128 , HIS L:153 , LEU L:154 , BCL L:302 , BPH L:402 , GLY M:203 , ILE M:206 , ALA M:207 , TYR M:210 , GLY M:211 , LEU M:214 , HOH M:328 , LDA M:701BINDING SITE FOR RESIDUE BCL M 305
12BC3SOFTWAREPHE L:181 , LEU L:185 , LEU L:189 , LEU L:219 , VAL L:220 , LEU M:60 , GLY M:63 , PHE M:67 , VAL M:126 , TRP M:129 , THR M:146 , PHE M:150 , ALA M:153 , THR M:277 , BCL M:303 , BCL M:304BINDING SITE FOR RESIDUE BPH M 401
13BC4SOFTWAREHIS L:190 , HIS L:230 , HIS M:219 , GLU M:234 , HIS M:266BINDING SITE FOR RESIDUE FE M 500
14BC5SOFTWARELDA H:702 , GLY L:35 , TRP L:100 , HIS M:219 , THR M:222 , ALA M:248 , ALA M:249 , TRP M:252 , MET M:256 , PHE M:258 , ASN M:259 , ALA M:260 , ILE M:265 , TRP M:268BINDING SITE FOR RESIDUE U10 M 501
15BC6SOFTWAREPHE M:67 , PHE M:68 , ILE M:70 , GLY M:71 , TRP M:75 , PHE M:105 , SER M:119 , TRP M:157 , LEU M:160 , GLY M:161 , TRP M:171 , VAL M:175 , GLY M:178 , HIS M:182 , BCL M:303BINDING SITE FOR RESIDUE SPN M 600
16BC7SOFTWARELDA H:702 , BCL M:305BINDING SITE FOR RESIDUE LDA M 701
17BC8SOFTWARELDA H:704 , TRP M:148 , LEU M:278 , PO4 M:800 , PO4 M:801BINDING SITE FOR RESIDUE LDA M 703
18BC9SOFTWARETRP M:41 , PHE M:42BINDING SITE FOR RESIDUE LDA M 705
19CC1SOFTWARELDA H:702 , MET M:256 , GLY M:257BINDING SITE FOR RESIDUE LDA M 707
20CC2SOFTWAREVAL L:220 , GLY M:31BINDING SITE FOR RESIDUE LDA M 708
21CC3SOFTWARELDA H:704 , ASN L:199 , HIS M:145 , ARG M:267 , HOH M:332 , LDA M:703BINDING SITE FOR RESIDUE PO4 M 800
22CC4SOFTWARELYS M:144 , LDA M:703BINDING SITE FOR RESIDUE PO4 M 801
23CC5SOFTWAREASN M:28 , GLY M:53 , SER M:54 , HOH M:334BINDING SITE FOR RESIDUE PO4 M 803
24CC6SOFTWAREPHE L:119 , GLN M:4BINDING SITE FOR RESIDUE DIO M 902
25CC7SOFTWAREILE M:6BINDING SITE FOR RESIDUE CL M 306

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3V3Y)

(-) Cis Peptide Bonds  (3, 3)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3V3Y)

(-) 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 3V3Y)

(-) 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:241
 aligned with RCEH_RHOSH | P0C0Y7 from UniProtKB/Swiss-Prot  Length:260

    Alignment length:241
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249 
           RCEH_RHOSH    10 FDLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPKPKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDLPELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLEVELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGGLMYAAPKRKS 250
               SCOP domains d3v3yh1 H:10-35           d3v3yh2 H:36-250 Photosynthetic reaction centre                                                                                                                                                                         SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhh..........................eeee......eeee............ee........ee...hhhhhhhhhhh.................eee.hhh...eeee.......eee.....eeeeeeeeeee....eeeeeeee.....eeeee.hhhee....ee....hhhhh............hhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3v3y H  10 FDLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPKPKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDLPELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLEVELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGGLMYAAPKRKS 250
                                    19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249 


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 d3v3yl_ L: L (light) subunit                                                                                                                                                                                                                                                              SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhhhh..............ee..eehhhhhhhhhhhhhhhhhhhhhhhhhh........ee............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..ee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhh............. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------REACTION_CENTER            ----------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3v3y L   1 ALLSFERKYRVPGGTLVGGNLFDFWVGPFYVGFFGVATFFFAALGIILIAWSAVLQGTWNPQLISVYPPALEYGLGGAPLAKGGLWQIITICATGAFVSWALREVEICRKLGIGYHIPFAFAFAILAYLTLVLFRPVMMGAWGYAFPYGIWTHLDWVSNTGYTYGNFHYNPAHMIAITFFFTNALALALHGALVLSAANPEKGKEMRTPDHEDTFFRDLVGYSIGTLGIHRLGLLLSLSAVFFSALCMIITGTIWFDQWVDWWQWWVKLPWWANIPGGING 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 d3v3ym_ M: M (medium) subunit                                                                                                                                                                                                                                                                                  SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........eee...........hhhhh......hhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhh.........hhhhh.........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhh.hhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------REACTION_CENTER            --------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3v3y M   1 AEYQNIFTQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALFWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNHG 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  (4, 4)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3V3Y)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3V3Y)

(-) 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 | P0C0Y7: 1aig 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 2hg3 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 3v3z 3zum 3zuw 4h99 4h9l 4hbh 4hbj 4in5 4in6 4in7 4lwy 4n7k 4n7l 4rcr 4tqq 4v9g 5lse 5v33
        RCEL_RHOSH | P0C0Y8: 1aig 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 2hg3 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 3v3z 3zum 3zuw 4h99 4h9l 4hbh 4hbj 4in5 4in6 4in7 4lwy 4n7k 4n7l 4rcr 4tqq 4v9g 5lse 5v33
        RCEM_RHOSH | P0C0Y9: 1aig 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 2hg3 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 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

1e6d PHOTOSYNTHETIC REACTION CENTER MUTANT WITH TRP M115 REPLACED WITH PHE (CHAIN M, WM115F) PHE M197 REPLACED WITH ARG (CHAIN M, FM197R)
1m3x PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES
3v3z