Structure of PDB 8ssz Chain A Binding Site BS02

Receptor Information
>8ssz Chain A (length=393) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ETRAHAEERLLKKLFSGYNKWSRPVANISDVVLVRFGLSIAQLIDVDEKN
QMMTTNVWVKQEWHDYKLRWDPADYENVTSIRIPSELIWRPDIVLYNNAD
GDFAVTHLTKAHLFHDGRVQWTPPAIYKSSCSIDVTFFPFDQQNCTMKFG
SWTYDKAKIDLVNMHSRVDQLDFWESGEWVIVDAVGTYNTRKYECCAEIY
PDITYAFVIRRLPLFYTINLIIPCLLISCLTVLVFYLPSECGEKITLCIS
VLLSLTVFLLLITEIIPSTSLVIPLIGEYLLFTMIFVTLSIVITVFVLNV
HHRSPRTHTMPTWVRRVFLDIVPRLLLMKRPLTRAVEGVQYIADHLKAED
TDFSVKEDWKYVAMVIDRIFLWMFIIVCLLGTVGLFLPPWLAG
Ligand information
Ligand IDCA
InChIInChI=1S/Ca/q+2
InChIKeyBHPQYMZQTOCNFJ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Ca++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Ca+2]
FormulaCa
NameCALCIUM ION
ChEMBL
DrugBankDB14577
ZINC
PDB chain8ssz Chain A Residue 705 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB8ssz Structure of the 2alpha3beta stoichiometry of the full-length human alpha4beta2 nicotinic receptor in complex with acetylcholine and calcium
Resolution2.64 Å
Binding residue
(original residue number in PDB)		V50 E52
Binding residue
(residue number reindexed from 1)		V46 E48
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0004888 transmembrane signaling receptor activity
GO:0005216 monoatomic ion channel activity
GO:0005230 extracellular ligand-gated monoatomic ion channel activity
GO:0022848 acetylcholine-gated monoatomic cation-selective channel activity
Biological Process
GO:0006811 monoatomic ion transport
GO:0034220 monoatomic ion transmembrane transport
Cellular Component
GO:0016020 membrane
GO:0045211 postsynaptic membrane

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Biological Process
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Cellular Component
External links
PDB RCSB:8ssz, PDBe:8ssz, PDBj:8ssz
PDBsum8ssz
PubMed38454578
UniProtP43681|ACHA4_HUMAN Neuronal acetylcholine receptor subunit alpha-4 (Gene Name=CHRNA4)

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