Structure of PDB 1lnq Chain D Binding Site BS01

Receptor Information
>1lnq Chain D (length=301) Species: 145262 (Methanothermobacter thermautotrophicus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
PATRILLLVLAVIIYGTAGFHFIEGESWTVSLYWTFVTIATVGYGDYSPS
TPLGMYFTVTLIVLGIGTFAVAVERLLEFLRHVVICGWSESTLECLRELR
GSEVFVLAEDENVRKKVLRSGANFVHGDPTRVSDLEKANVRGARAVIVDL
ESDSETIHCILGIRKIDESVRIIAEAERYENIEQLRMAGADQVISPFVIS
GRLMSRSIDDGYEAMFVQDVLAEESTRRMVEVPIPEGSKLEGVSVLDADI
HDVTGVIIIGVGRGDELIIDPPRDYSFRAGDIILGIGKPEEIERLKNYIS
A
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 chain1lnq Chain D Residue 337 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1lnq CRYSTAL STRUCTURE AND MECHANISM OF A CALCIUM-GATED POTASSIUM CHANNEL
Resolution3.3 Å
Binding residue
(original residue number in PDB)		S124 D184 E210 E212
Binding residue
(residue number reindexed from 1)		S89 D149 E175 E177
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0008324 monoatomic cation transmembrane transporter activity
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0006813 potassium ion transport
GO:0034220 monoatomic ion transmembrane transport
GO:0098655 monoatomic cation transmembrane transport
Cellular Component
GO:0005886 plasma membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1lnq, PDBe:1lnq, PDBj:1lnq
PDBsum1lnq
PubMed12037559
UniProtO27564|MTHK_METTH Calcium-gated potassium channel MthK (Gene Name=mthK)

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