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22AY

KCNQ2 homotetramer in apo state

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues88
DetailsTransmembrane: {"description":"Helical; Name=Segment S1","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues112
DetailsTopological domain: {"description":"Extracellular","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues84
DetailsTransmembrane: {"description":"Helical; Name=Segment S2","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues112
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues76
DetailsTransmembrane: {"description":"Helical; Name=Segment S3","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues72
DetailsTransmembrane: {"description":"Helical; Voltage-sensor; Name=Segment S4","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues100
DetailsTransmembrane: {"description":"Helical; Name=Segment S5","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues48
DetailsIntramembrane: {"description":"Pore-forming; Name=Segment H5","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues104
DetailsTransmembrane: {"description":"Helical; Name=Segment S6","evidences":[{"source":"PubMed","id":"32884139","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7CR3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues404
DetailsRegion: {"description":"Mediates interaction with SLC5A3/SMIT1","evidences":[{"source":"UniProtKB","id":"O88943","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues20
DetailsMotif: {"description":"Selectivity filter","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"37857637","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8J01","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8W4U","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"37857637","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8W4U","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues4
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"16319223","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

254587

PDB entries from 2026-06-03

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