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9G9X

Structure of the human two pore domain potassium ion channel TASK-1 (K2P3.1)

Functional Information from GO Data
ChainGOidnamespacecontents
A0005252molecular_functionopen rectifier potassium channel activity
A0005267molecular_functionpotassium channel activity
A0016020cellular_componentmembrane
A0071805biological_processpotassium ion transmembrane transport
B0005252molecular_functionopen rectifier potassium channel activity
B0005267molecular_functionpotassium channel activity
B0016020cellular_componentmembrane
B0071805biological_processpotassium ion transmembrane transport
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues14
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues160
DetailsTransmembrane: {"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues46
DetailsIntramembrane: {"description":"Pore-forming; Name=Pore-forming 1","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues46
DetailsIntramembrane: {"description":"Pore-forming; Name=Pore-forming 2","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues10
DetailsRegion: {"description":"Selectivity filter 1","evidences":[{"source":"PubMed","id":"26919430","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues10
DetailsRegion: {"description":"Selectivity filter 2","evidences":[{"source":"PubMed","id":"26919430","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues10
DetailsRegion: {"description":"X-gate","evidences":[{"source":"PubMed","id":"32499642","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P57789","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"32499642","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"6RV2","evidenceCode":"ECO:0000312"},{"source":"PDB","id":"6RV4","evidenceCode":"ECO:0000312"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

248335

PDB entries from 2026-01-28

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