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3SPG

Inward rectifier potassium channel Kir2.2 R186A mutant in complex with PIP2

Functional Information from GO Data
ChainGOidnamespacecontents
A0005242molecular_functioninward rectifier potassium channel activity
A0006813biological_processpotassium ion transport
A0016020cellular_componentmembrane
Functional Information from PDB Data
site_idAC1
Number of Residues12
DetailsBINDING SITE FOR RESIDUE K A 501
ChainResidue
AGLY145
AK502
AK502
AK502
AGLY145
AGLY145
AGLY145
ATYR146
ATYR146
ATYR146
ATYR146
AK502

site_idAC2
Number of Residues16
DetailsBINDING SITE FOR RESIDUE K A 502
ChainResidue
AILE144
AILE144
AILE144
AILE144
AGLY145
AGLY145
AGLY145
AGLY145
AK501
AK501
AK501
AK501
AK503
AK503
AK503
AK503

site_idAC3
Number of Residues16
DetailsBINDING SITE FOR RESIDUE K A 503
ChainResidue
ATHR143
ATHR143
ATHR143
ATHR143
AILE144
AILE144
AILE144
AILE144
AK502
AK502
AK502
AK502
AK504
AK504
AK504
AK504

site_idAC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE K A 504
ChainResidue
ATHR143
ATHR143
ATHR143
ATHR143
AK503
AK503
AK503
AK503

site_idAC5
Number of Residues7
DetailsBINDING SITE FOR RESIDUE PIO A 400
ChainResidue
AARG78
ATRP79
AARG80
ALEU83
ALYS183
ALYS188
ALYS189

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues26
DetailsTransmembrane: {"description":"Helical; Name=M1","evidences":[{"source":"PubMed","id":"21874019","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3SPC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues33
DetailsTopological domain: {"description":"Extracellular","evidences":[{"source":"PubMed","id":"21874019","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues16
DetailsIntramembrane: {"description":"Helical; Pore-forming; Name=H5","evidences":[{"source":"PubMed","id":"21874019","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3SPC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues27
DetailsTransmembrane: {"description":"Helical; Name=M2","evidences":[{"source":"PubMed","id":"21874019","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3SPC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues5
DetailsMotif: {"description":"Selectivity filter","evidences":[{"source":"PubMed","id":"20019282","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"21874019","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"21874019","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3SPI","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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