Structure of PDB 1k6l Chain M Binding Site BS08

Receptor Information
>1k6l Chain M (length=302) Species: 1063 (Cereibacter sphaeroides) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AEYQNIFSQVQVRGPADLGMTEDVNLANRSGVGPFSTLLGWFGNAQLGPI
YLGSLGVLSLFSGLMWFFTIGIWFWYQAGWNPAVFLRDLFFFSLEPPAPE
YGLSFAAPLKEGGLWLIASFFMFVAVWSWWGRTYLRAQALGMGKHTAWAF
LSAIWLWMVLGFIRPILMGSWSEAVPYGIFSHLDWTNNFSLVHGNLFYNP
FHGLSIAFLYGSALLFAMHGATILAVSRFGGERELEQIADRGTAAERAAL
FWRWTMGFNATMEGIHRWAIWMAVLVTLTGGIGILLSGTVVDNWYVWGQN
HG
Ligand information
Ligand IDSPN
InChIInChI=1S/C41H70O2/c1-33(2)19-14-22-36(5)25-17-28-37(6)26-15-23-34(3)20-12-13-21-35(4)24-16-27-38(7)29-18-30-39(8)31-32-40(42)41(9,10)43-11/h19,23-25,29,31,37H,12-18,20-22,26-28,30,32H2,1-11H3/b34-23+,35-24+,36-25+,38-29+,39-31+/t37-/m0/s1
InChIKeyGWQAMGYOEYXWJF-YCDPMLDASA-N
SMILES
SoftwareSMILES
CACTVS 3.341COC(C)(C)C(=O)C\C=C(/C)CC\C=C(/C)CC\C=C(/C)CCCC\C(C)=C\CC[C@H](C)CC\C=C(/C)CCC=C(C)C
OpenEye OEToolkits 1.5.0CC(CC\C=C(/C)\CCCC/C(=C/CCC(=CCCC(=CCC(=O)C(C)(C)OC)C)C)/C)CCC=C(C)CCC=C(C)C
ACDLabs 10.04O=C(C/C=C(\C)CC\C=C(/C)CC\C=C(/C)CCCCC(=C/CCC(C)CC\C=C(/C)CC\C=C(/C)C)/C)C(OC)(C)C
CACTVS 3.341COC(C)(C)C(=O)CC=C(C)CCC=C(C)CCC=C(C)CCCCC(C)=CCC[CH](C)CCC=C(C)CCC=C(C)C
OpenEye OEToolkits 1.5.0CC(CCC=C(C)CCCCC(=CCCC(=CCCC(=CCC(=O)C(C)(C)OC)C)C)C)CCC=C(C)CCC=C(C)C
FormulaC41 H70 O2
NameSPEROIDENONE
ChEMBL
DrugBank
ZINCZINC000064437266
PDB chain1k6l Chain M Residue 600 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1k6l The structure of a mutant photosynthetic reaction center shows unexpected changes in main chain orientations and quinone position.
Resolution3.1 Å
Binding residue
(original residue number in PDB)		F67 F68 I70 W75 W115 S119 W157 G161 F162 H182
Binding residue
(residue number reindexed from 1)		F67 F68 I70 W75 W115 S119 W157 G161 F162 H182
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0042314 bacteriochlorophyll binding
GO:0045156 electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
GO:0046872 metal ion binding
Biological Process
GO:0009772 photosynthetic electron transport in photosystem II
GO:0015979 photosynthesis
GO:0019684 photosynthesis, light reaction
Cellular Component
GO:0016020 membrane
GO:0030077 plasma membrane light-harvesting complex
GO:0042717 plasma membrane-derived chromatophore membrane

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Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1k6l, PDBe:1k6l, PDBj:1k6l
PDBsum1k6l
PubMed11993994
UniProtP0C0Y9|RCEM_CERSP Reaction center protein M chain (Gene Name=pufM)

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