Structure of PDB 1cwq Chain B Binding Site BS02

Receptor Information
>1cwq Chain B (length=238) Species: 2242 (Halobacterium salinarum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AQITGRPEWIWLALGTALMGLGTLYFLVKGMGVSDPDAKKFYAITTLVPA
IAFTMYLSMLLGYGLTMVPFGGEQNPIYWARYADWLFTTPLLLLDLALLV
DADQGTILALVGADGIMIGTGLVGALTKVYSYRFVWWAISTAAMLYILYV
LFFGFTSKAESMRPEVASTFKVLRNVTVVLWSAYPVVWLIGSEGAGIVPL
NIETLLFMVLDVSAKVGFGLILLRSRAIFGEAEAPEPS
Ligand information
Ligand IDRET
InChIInChI=1S/C20H28O/c1-16(8-6-9-17(2)13-15-21)11-12-19-18(3)10-7-14-20(19,4)5/h6,8-9,11-13,15H,7,10,14H2,1-5H3/b9-6+,12-11+,16-8+,17-13+
InChIKeyNCYCYZXNIZJOKI-OVSJKPMPSA-N
SMILES
SoftwareSMILES
CACTVS 3.370CC(=C\C=O)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C
ACDLabs 12.01O=C\C=C(\C=C\C=C(\C=C\C1=C(C)CCCC1(C)C)C)C
OpenEye OEToolkits 1.7.0CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C/C=O)/C)/C
OpenEye OEToolkits 1.7.0CC1=C(C(CCC1)(C)C)C=CC(=CC=CC(=CC=O)C)C
CACTVS 3.370CC(=CC=O)C=CC=C(C)C=CC1=C(C)CCCC1(C)C
FormulaC20 H28 O
NameRETINAL
ChEMBLCHEMBL81379
DrugBank
ZINCZINC000004228262
PDB chain1cwq Chain B Residue 601 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1cwq Structural alterations for proton translocation in the M state of wild-type bacteriorhodopsin.
Resolution2.25 Å
Binding residue
(original residue number in PDB)		Y83 W86 M118 W138 S141 T142 W182 Y185 W189 K216
Binding residue
(residue number reindexed from 1)		Y82 W85 M117 W137 S140 T141 W181 Y184 W188 K215
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0005216 monoatomic ion channel activity
GO:0009881 photoreceptor activity
GO:0015454 light-driven active monoatomic ion transmembrane transporter activity
Biological Process
GO:0006811 monoatomic ion transport
GO:0007602 phototransduction
GO:1902600 proton transmembrane transport
Cellular Component
GO:0005886 plasma membrane
GO:0016020 membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1cwq, PDBe:1cwq, PDBj:1cwq
PDBsum1cwq
PubMed10949308
UniProtP02945|BACR_HALSA Bacteriorhodopsin (Gene Name=bop)

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