Structure of PDB 7r3k Chain B Binding Site BS13

Receptor Information
>7r3k Chain B (length=733) Species: 3055 (Chlamydomonas reinhardtii) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ATKLFPKFSQGLAQDPTTRRIWYGLAMAHDFESHDGMTEENLYQKIFASH
FGQLSIIFLWTSGNLFHVAWQGNFEQWVTDPVHIRPIAHAIWDPHFGQPA
VEAFTRGGASGPVNISTSGVYQWWYTIGMRTNQDLYVGSVFLALVSAIFL
FAGWLHLQPNFQPSLSWFKDAESRLNHHLSGLFGVSSLAWTGHLVHVAIP
ESRGQHVGWDNFLSVLPHPQGLTPFFTGNWAAYAQSPDTASHVFGTAQGS
GQAILTFLGGFHPQTQSLWLTDMAHHHLAIAVIFIVAGHMYRTNFGIGHR
MQAILEAHTPPSGSLGAGHKGLFDTVNNSLHFQLGLALASVGTITSLVAQ
HMYSLPPYAFQAIDFTTQAALYTHHQYIAGFIMCGAFAHGAIFFIRDYDP
EQNKGNVLARMLDHKEALISHLSWVSLFLGFHTLGLYVHNDVMQAFGTPE
KQILIEPVFAQWIQAAHGKALYGFDFLLSSKTSAAFANGQSLWLPGWLDA
INNNQNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDK
KDFGYSFPCDGPGRGGTCDISAYDAFYLAVFWMLNTIGWVTFYWHWKHLT
LWQGNVAQFDESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWTF
LFGHLIYATGFMFLISWRGYWQELIETLVWAHEKTPLANLVYWKDKPVAL
SIVQARLVGLAHFSVGYIFTYAAFLIASTSGRF
Ligand information
Ligand IDCLA
InChIInChI=1S/C55H73N4O5.Mg/c1-13-39-35(8)42-28-44-37(10)41(24-25-48(60)64-27-26-34(7)23-17-22-33(6)21-16-20-32(5)19-15-18-31(3)4)52(58-44)50-51(55(62)63-12)54(61)49-38(11)45(59-53(49)50)30-47-40(14-2)36(9)43(57-47)29-46(39)56-42;/h13,26,28-33,37,41,51H,1,14-25,27H2,2-12H3,(H-,56,57,58,59,61);/q-1;+2/p-1/b34-26+;/t32-,33-,37+,41+,51-;/m1./s1
InChIKeyATNHDLDRLWWWCB-AENOIHSZSA-M
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7CCC1=C(C2=Cc3c(c(c4n3[Mg]56[N]2=C1C=C7N5C8=C(C(C(=O)C8=C7C)C(=O)OC)C9=[N]6C(=C4)C(C9CCC(=O)OCC=C(C)CCCC(C)CCCC(C)CCCC(C)C)C)C)C=C)C
CACTVS 3.385CCC1=C(C)C2=Cc3n4[Mg][N]5C(=CC1=N2)C(=C6C(=O)[CH](C(=O)OC)C(=C56)C7=NC(=Cc4c(C)c3C=C)[CH](C)[CH]7CCC(=O)OCC=C(C)CCC[CH](C)CCC[CH](C)CCCC(C)C)C
ACDLabs 12.01O=C(OC)C1C(=O)C2=C(C)C3=CC=4C(CC)=C(C)C5=Cc6c(C=C)c(C)c7C=C8C(C)C(CCC(=O)OC\C=C(/C)CCCC(C)CCCC(C)CCCC(C)C)C=9C1=C2N3[Mg](n76)(N5=4)N8=9
OpenEye OEToolkits 2.0.7CCC1=C(C2=Cc3c(c(c4n3[Mg]56[N]2=C1C=C7N5C8=C([C@H](C(=O)C8=C7C)C(=O)OC)C9=[N]6C(=C4)[C@H]([C@@H]9CCC(=O)OC/C=C(\C)/CCC[C@H](C)CCC[C@H](C)CCCC(C)C)C)C)C=C)C
CACTVS 3.385CCC1=C(C)C2=Cc3n4[Mg][N@@]5C(=CC1=N2)C(=C6C(=O)[C@H](C(=O)OC)C(=C56)C7=NC(=Cc4c(C)c3C=C)[C@@H](C)[C@@H]7CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)C
FormulaC55 H72 Mg N4 O5
NameCHLOROPHYLL A
ChEMBL
DrugBankDB02133
ZINC
PDB chain7r3k Chain B Residue 807 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB7r3k Structure of Photosystem I Supercomplex Isolated from a Chlamydomonas reinhardtii Cytochrome b6f Temperature-Sensitive Mutant.
Resolution2.52 Å
Binding residue
(original residue number in PDB)		H30 Q54 I58 W61 F382
Binding residue
(residue number reindexed from 1)		H29 Q53 I57 W60 F381
Annotation score1
Enzymatic activity
Enzyme Commision number 1.97.1.12: photosystem I.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0009055 electron transfer activity
GO:0016168 chlorophyll binding
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0015979 photosynthesis
Cellular Component
GO:0009507 chloroplast
GO:0009522 photosystem I
GO:0009535 chloroplast thylakoid membrane
GO:0009579 thylakoid
GO:0016020 membrane

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:7r3k, PDBe:7r3k, PDBj:7r3k
PDBsum7r3k
PubMed36979472
UniProtP09144|PSAB_CHLRE Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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