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(-) Description

Title :  X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 10 IN THE NEUTRAL STATE, 2ND DATASET
 
Authors :  J. Koepke, R. Diehm, G. Fritzsch
Date :  28 Mar 07  (Deposition) - 03 Jul 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.88
Chains :  Asym./Biol. Unit :  H,L,M
Keywords :  Chlorophyll, Cardiolipin, Metal-Binding, Transmembrane, Photosynthesis, Reaction Center, Electron Transport, Iron, Membrane, Magnesium, Transport, Chromophore, Binding Positions Of The Secondary Quinone Qb, Bacteriochlorophyll, Proton Translocation Pathways (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Koepke, E. M. Krammer, A. R. Klingen, P. Sebban, G. M. Ullmann, G. Fritzsch
Ph Modulates The Quinone Position In The Photosynthetic Reaction Center From Rhodobacter Sphaeroides In The Neutral And Charge Separated States.
J. Mol. Biol. V. 371 396 2007
PubMed-ID: 17570397  |  Reference-DOI: 10.1016/J.JMB.2007.04.082

(-) Compounds

Molecule 1 - REACTION CENTER PROTEIN H CHAIN
    Chains: H
    Organism Scientific: RHODOBACTER SPHAEROIDES
    Organism Taxid: 1063
    Other Details: PH 10 NEUTRAL STATE
    Synonym: PHOTOSYNTHETIC REACTION CENTER H SUBUNIT
 
Molecule 2 - REACTION CENTER PROTEIN L CHAIN
    Chains: L
    Organism Scientific: RHODOBACTER SPHAEROIDES
    Organism Taxid: 1063
    Other Details: PH 10 NEUTRAL STATE
    Synonym: PHOTOSYNTHETIC REACTION CENTER L SUBUNIT
 
Molecule 3 - REACTION CENTER PROTEIN M CHAIN
    Chains: M
    Organism Scientific: RHODOBACTER SPHAEROIDES
    Organism Taxid: 1063
    Other Details: PH 10 NEUTRAL STATE
    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, 18)

Asymmetric/Biological Unit (9, 18)
No.NameCountTypeFull Name
1BCL4Ligand/IonBACTERIOCHLOROPHYLL A
2BPH2Ligand/IonBACTERIOPHEOPHYTIN A
3FE1Ligand/IonFE (III) ION
4GOL4Ligand/IonGLYCEROL
5HTO1Ligand/IonHEPTANE-1,2,3-TRIOL
6LDA3Ligand/IonLAURYL DIMETHYLAMINE-N-OXIDE
7SPO1Ligand/IonSPHEROIDENE
8U101Ligand/IonUBIQUINONE-10
9UQ21Ligand/IonUBIQUINONE-2

(-) Sites  (18, 18)

Asymmetric Unit (18, 18)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREHIS L:168 , MET L:174 , ILE L:177 , SER L:178 , THR L:182 , BCL L:1285 , HOH L:2047 , HIS M:182 , LEU M:183 , THR M:186 , BCL M:1304 , BPH M:1309 , SPO M:1311BINDING SITE FOR RESIDUE BCL M1303
02AC2SOFTWAREVAL L:157 , TYR L:162 , PHE L:181 , BCL L:1285 , LEU M:156 , TRP M:157 , THR M:186 , ASN M:187 , SER M:190 , LEU M:196 , PHE M:197 , HIS M:202 , SER M:205 , ILE M:206 , TYR M:210 , GLY M:280 , ILE M:284 , BCL M:1303 , BPH M:1309BINDING SITE FOR RESIDUE BCL M1304
03AC3SOFTWARETYR L:128 , LEU L:131 , PHE L:146 , HIS L:153 , LEU L:154 , VAL L:157 , BPH L:1283 , BCL L:1285 , HOH L:2068 , GLY M:203 , ILE M:206 , ALA M:207 , TYR M:210 , LDA M:1305BINDING SITE FOR RESIDUE BCL L1282
04AC4SOFTWAREBCL L:1282 , PRO M:200 , PHE M:208 , LDA M:1306BINDING SITE FOR RESIDUE LDA M1305
05AC5SOFTWAREGLN H:32 , TYR H:40 , PHE H:56 , ARG M:253 , PHE M:258 , LDA M:1305BINDING SITE FOR RESIDUE LDA M1306
06AC6SOFTWAREGLY M:31 , HOH M:2013BINDING SITE FOR RESIDUE LDA M1307
07AC7SOFTWAREHIS L:190 , HIS L:230 , HIS M:219 , GLU M:234 , HIS M:266BINDING SITE FOR RESIDUE FE M1308
08AC8SOFTWAREPHE L:181 , LEU L:185 , LEU L:189 , LEU L:219 , SER M:59 , GLY M:63 , ALA M:125 , VAL M:126 , TRP M:129 , PHE M:150 , ALA M:153 , ALA M:273 , THR M:277 , BCL M:1303 , BCL M:1304BINDING SITE FOR RESIDUE BPH M1309
09AC9SOFTWAREALA L:93 , PHE L:97 , TRP L:100 , GLU L:104 , ALA L:120 , PHE L:121 , ALA L:124 , TYR L:148 , BCL L:1282 , BCL L:1285 , TYR M:210 , LEU M:214 , MET M:218 , TRP M:252 , MET M:256BINDING SITE FOR RESIDUE BPH L1283
10BC1SOFTWARETRP L:100 , MET M:218 , HIS M:219 , THR M:222 , ALA M:249 , TRP M:252 , MET M:256 , ASN M:259 , ALA M:260 , ILE M:265 , TRP M:268BINDING SITE FOR RESIDUE U10 M1310
11BC2SOFTWARELEU L:185 , LEU L:189 , HIS L:190 , LEU L:193 , PRO L:209 , 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 , GLU M:234BINDING SITE FOR RESIDUE UQ2 L1284
12BC3SOFTWAREPHE L:97 , ALA L:127 , LEU L:131 , TRP L:156 , VAL L:157 , 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:1282 , BPH L:1283 , TYR M:210 , BCL M:1303 , BCL M:1304BINDING SITE FOR RESIDUE BCL L1285
13BC4SOFTWAREPHE M:67 , ILE M:70 , GLY M:71 , TRP M:75 , SER M:119 , TRP M:157 , GLY M:161 , PHE M:162 , TRP M:171 , TYR M:177 , GLY M:178 , ILE M:179 , HIS M:182 , BCL M:1303BINDING SITE FOR RESIDUE SPO M1311
14BC5SOFTWAREGLN L:87 , TRP L:142BINDING SITE FOR RESIDUE HTO L1286
15BC6SOFTWAREGLU H:34 , LYS H:62 , GOL H:1252 , HOH H:2003 , ASN L:199BINDING SITE FOR RESIDUE GOL H1251
16BC7SOFTWARETHR H:63 , GOL H:1251 , ALA L:198 , ASN L:199 , PRO L:200BINDING SITE FOR RESIDUE GOL H1252
17BC8SOFTWAREALA L:78 , LEU L:80 , ILE L:88BINDING SITE FOR RESIDUE GOL L1287
18BC9SOFTWARETRP H:21BINDING SITE FOR RESIDUE GOL H1253

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1Tyr H:40 -Pro H:41
2Val H:75 -Pro H:76
3Ala H:138 -Gly H:139
4Arg H:248 -Lys H:249
5Gly M:48 -Pro M:49

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) 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 2UXL)

(-) 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
                                    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 DLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPKPKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDLPELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLEVELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGGLMYAAPKRKSV 251
               SCOP domains d2uxlh1 H:11-35          d2uxlh2 H:36-251 Photosynthetic reaction centre                                                                                                                                                                          SCOP domains
               CATH domains -2uxlH01 H:12-116 Photosynthetic Reaction Center, subunit H, domain 1                                     2uxlH02 H:117-249 Photosynthetic Reaction Center, subunit H, domain 2                                                                -- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhh..........................eeee......eeee...........eee........eee..hhhhhhhhhhh.................eee.hhh...eeeee......eee.....eeeeeeeeeee....eeeeeeeee....eeeee.hhhee....ee....hhhhh............hhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2uxl H  11 DLASLAIYSFWIFLAGLIYYLQTENMREGYPLENEDGTPAANQGPFPLPKPKTFILPHGRGTLTVPGPESEDRPIALARTAVSEGFPHAPTGDPMKDGVGPASWVARRDLPELDGHGHNKIKPMKAAAGFHVSAGKNPIGLPVRGCDLEIAGKVVDIWVDIPEQMARFLEVELKDGSTRLLPMQMVKVQSNRVHVNALSSDLFAGIPTIKSPTEVTLLEEDKICGYVAGGLMYAAPKRKSV 251
                                    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 d2uxll_ L: automated matches                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 2uxlL01 L:1-163 Membrane spanning alpha-helix pairs                                                                                                                2uxlL02 L:164-263 Membrane spanning alpha-helix pairs                                               ------------------ CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhhhh..............ee..ee.hhhhhhhhhhhhhhhhhhhhhhhhh.............hhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhh............. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------REACTION_CENTER            ----------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2uxl 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:303
 aligned with RCEM_RHOSH | P0C0Y9 from UniProtKB/Swiss-Prot  Length:308

    Alignment length:303
                                    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 AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALFWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNHGM 304
               SCOP domains d2uxlm_ M: automated matches                                                                                                                                                                                                                                                                                    SCOP domains
               CATH domains 2uxlM01 M:1-143 Membrane spanning alpha-helix pairs                                                                                            2uxlM02 M:144-303 Membrane spanning alpha-helix pairs                                                                                                            CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........eeee...........hhhh.......hhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhh.........hhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhh.hhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhh.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------REACTION_CENTER            ---------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2uxl M   1 AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPIYLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPEYGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAFLSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNPFHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAALFWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQNHGM 303
                                    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
(-)
Class: All beta proteins (24004)
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (3, 6)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Few Secondary Structures (1120)
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

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

(-) 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 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 | 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 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 | 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 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

1aig PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE D+QB- CHARGE SEPARATED STATE
1aij PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE CHARGE-NEUTRAL DQAQB STATE
1ds8 PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE CHARGE-NEUTRAL DQAQB STATE WITH THE PROTON TRANSFER INHIBITOR CD2 +
1dv3 PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE CHARGE-SEPARATED D+QAQB - STATE WITH THE PROTON TRANSFER INHIBITOR CD2+
1dv6 PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE CHARGE-NEUTRAL DQAQB STATE WITH THE PROTON TRANSFER INHIBITOR ZN2 +
1e14 PHOTOSYNTHETIC REACTION CENTER MUTANT WITH PHE M197 REPLACED WITH ARG (CHAIN M, FM197R) AND GLY M203 REPLACED WITH ASP (CHAIN M, GM203D)
1e6d PHOTOSYNTHETIC REACTION CENTER MUTANT WITH TRP M115REPLACED WITH PHE (CHAIN M, WM115F) PHE M197 REPLACED WITHARG (CHAIN M, FM197R)
1f6n CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTERPRO L209-> TYR FROM THE PHOTOSYNTHETIC PURPLE BACTERIUMRHODOBACTER SPHAEROIDES
1fnp CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTERPRO L209-> PHE FROM THE PHOTOSYNTHETIC PURPLE BACTERIUMRHODOBACTER SPHAEROIDES
1fnq CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTERPRO L209-> GLU FROM THE PHOTOSYNTHETIC PURPLE BACTERIUMRHODOBACTER SPHAEROIDES
1jgw PHOTOSYNTHETIC REACTION CENTER MUTANT WITH THR M 21REPLACED WITH LEU
1jgx PHOTOSYNTHETIC REACTION CENTER MUTANT WITH THR M 21REPLACED WITH ASP
1jgy PHOTOSYNTHETIC REACTION CENTER MUTANT WITH TYR M 76REPLACED WITH PHE
1jgz PHOTOSYNTHETIC REACTION CENTER MUTANT WITH TYR M 76REPLACED WITH LYS
1jh0 PHOTOSYNTHETIC REACTION CENTER MUTANT WITH GLU L 205REPLACED TO LEU
1k6l PHOTOSYNETHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES
1k6n E(L212)A,D(L213)A DOUBLE MUTANT STRUCTURE OF PHOTOSYNTHETICREACTION CENTER FROM RHODOBACTER SPHAEROIDES
1kby STRUCTURE OF PHOTOSYNTHETIC REACTION CENTER WITHBACTERIOCHLOROPHYLL-BACTERIOPHEOPHYTIN HETERODIMER
1l9b X-RAY STRUCTURE OF THE CYTOCHROME-C(2)- PHOTOSYNTHETICREACTION CENTER ELECTRON TRANSFER COMPLEX FROM RHODOBACTERSPHAEROIDES IN TYPE II CO-CRYSTALS
1l9j X-RAY STRUCTURE OF THE CYTOCHROME-C(2)- PHOTOSYNTHETICREACTION CENTER ELECTRON TRANSFER COMPLEX FROM RHODOBACTERSPHAEROIDES IN TYPE I CO-CRYSTALS
1m3x PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES
1mps PHOTOSYNTHETIC REACTION CENTER MUTANT WITH PHE M 197 REPLACED WITH ARG AND TYR M 177 REPLACED WITH PHE (CHAIN M, Y177F, F197R)
1ogv LIPIDIC CUBIC PHASE CRYSTAL STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTRE FROM RHODOBACTER SPHAEROIDES
1pcr PHOTOSYNTHETIC REACTION CENTER
1pss PHOTOSYNTHETIC REACTION CENTER (WILD-TYPE)
1pst PHOTOSYNTHETIC REACTION CENTER MUTANT WITH HIS M 202 REPLACED WITH LEU (H(M 202)L)
1qov PHOTOSYNTHETIC REACTION CENTER MUTANT WITH ALA M260 REPLACED WITH TRP (CHAIN M, AM260W)
1rg5 STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTRE FROMRHODOBACTER SPHAEROIDES CAROTENOIDLESS STRAIN R-26.1
1rgn STRUCTURE OF THE REACTION CENTRE FROM RHODOBACTERSPHAEROIDES CAROTENOIDLESS STRAIN R- 26.1 RECONSTITUTEDWITH SPHEROIDENE
1rqk STRUCTURE OF THE REACTION CENTRE FROM RHODOBACTERSPHAEROIDES CAROTENOIDLESS STRAIN R- 26.1 RECONSTITUTEDWITH 3,4-DIHYDROSPHEROIDENE
1rvj PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROMRHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASNAND ARG H177 REPLACED WITH HIS
1ry5 PHOTOSYNTHETIC REACTION CENTER MUTANT FROM RHODOBACTERSPHAEROIDES WITH ASP L213 REPLACED WITH ASN
1rzh PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROMRHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASNAND ARG M233 REPLACED WITH CYS IN THE CHARGE-NEUTRAL DQAQBSTATE ( TRIGONAL FORM)
1rzz PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROMRHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASNAND ARG M233 REPLACED WITH CYS IN THE CHARGE-NEUTRAL DQAQBSTATE ( TETRAGONAL FORM)
1s00 PHOTOSYNTHETIC REACTION CENTER DOUBLE MUTANT FROMRHODOBACTER SPHAEROIDES WITH ASP L213 REPLACED WITH ASNAND ARG M233 REPLACED WITH CYS IN THE CHARGE-SEPARATEDD+QAQB- STATE
1umx PHOTOSYNTHETIC REACTION CENTER MUTANT WITH ARG M267 REPLACED WITH LEU (CHAIN M, R267L)
1yst PHOTOSYNTHETIC REACTION CENTER (WILD TYPE)
1z9j PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES
1z9k PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES
2bnp LIPIDIC CUBIC PHASE GROWN REACTION CENTRE FROM RHODOBACTER SPHAEROIDES, GROUND STATE
2bns LIPIDIC CUBIC PHASE GROWN REACTION CENTRE FROM RHODOBACTER SPHAEROIDES, EXCITED STATE
2boz PHOTOSYNTHETIC REACTION CENTER MUTANT WITH GLY M203 REPLACED WITH LEU
2gmr PHOTOSYNTHETIC REACTION CENTER MUTANT FROM RHODOBACTERSPHAEROIDES WITH ASP L210 REPLACED WITH ASN
2j8c X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 8 IN THE NEUTRAL STATE
2j8d X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 8 IN THE CHARGE- SEPARATED STATE
2rcr PHOTOSYNTHETIC REACTION CENTER FROM (RHODOBACTER SPHAEROIDES)
2uws X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 6.5 IN THE CHARGE- SEPARATED STATE
2uwt X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 6.5 IN THE CHARGE- SEPARATED STATE 2ND DATASET
2uwu X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 6.5 IN THE NEUTRAL STATE, 2ND DATASET
2uwv X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 6.5 IN THE CHARGE- SEPARATED STATE, 3RD DATASET
2uww X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 6.5 IN THE NEUTRAL STATE
2ux3 X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 9 IN THE NEUTRAL STATE
2ux4 X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 9 IN THE CHARGE- SEPARATED STATE, 2ND DATASET
2ux5 X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 9 IN THE CHARGE- SEPARATED STATE
2uxj X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 10 IN THE NEUTRAL STATE
2uxk X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 10 IN THE CHARGE- SEPARATED STATE
2uxm X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 10 IN THE CHARGE- SEPARATED STATE, 2ND DATASET
4rcr PHOTOSYNTHETIC REACTION CENTER