Structure of PDB 2wsc Chain B Binding Site BS04

Receptor Information
>2wsc Chain B (length=733) Species: 3888 (Pisum sativum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ALRIPRFSQGIAQDPTTRRIWFGIATAHDFESHDDITEGRLYQNIFASHF
GQLAIIFLWTSGNLFHVAWQGNFEAWVQDPFHVRPIAHAIWDPHFGQPAV
EAFTRGGALGPVNNAYSGVYQWWYTIGLRTNEDLYTGAIFLLFLSFISLL
AGWLHLQPKWKPSVSWFKNAESRLNHHLSGLFGVSSLAWAGHLVHVAIPG
SRGEYVRWNNFLDVLPYPQGLGPLLTGQWNLYAQNPSSSNHLFGTTQGAG
TAILTILGGFHPQTQSLWLTDVAHHHLAIAFLFLIGGLMYRTNFGIGHSI
KYILEAHIPPGGRLGRGHKGLYDTINNSIHFQLGLALASLGVITSLVAQH
MYSLPAYAFIAQDFTTQAALYTHHQYIAGFIMTGAFAHGPIFFIRDYNPE
QNADNVLARMLEHKEAIISHLSWASLFLGFHTLGLYVHNDVMLAFGTPEK
QILIEPIFAQWIQSAHGKTTYGFDIPLSSTNGPALNAGRNIWLPGWLNAI
NENSNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKK
DFGYSFPCDGPGRGGTCDISAWDDFYLAVFWMLNTIGWVTFYWHWKHITL
WRGNVSQFNESSTYLMGWLRDYLWLNSSQLINGITPLVCNSLSVWAWMFL
FGHLVWATGFMFLISWRGYWQELIETLAWAHERTPLANLIRWRDKPVALS
IVQARLVGLVHFSVGYIFTYAAFLIASTSGKFG
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 chain2wsc Chain A Residue 1813 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB2wsc Structure Determination and Improved Model of Plant Photosystem I.
Resolution3.3 Å
Binding residue
(original residue number in PDB)
L427 G430 F431 T529 L578 F581 W582
Binding residue
(residue number reindexed from 1)
L426 G429 F430 T528 L577 F580 W581
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

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Molecular Function

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Biological Process

View graph for
Cellular Component
External links
PDB RCSB:2wsc, PDBe:2wsc, PDBj:2wsc
PDBsum2wsc
PubMed19923216
UniProtP05311|PSAB_PEA Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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