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6PIS

Mouse two pore domain K+ channel TRAAK (K2P4.1) - Fab complex structure

Functional Information from GO Data
ChainGOidnamespacecontents
A0005267molecular_functionpotassium channel activity
A0016020cellular_componentmembrane
A0071805biological_processpotassium ion transmembrane transport
B0005267molecular_functionpotassium channel activity
B0016020cellular_componentmembrane
B0071805biological_processpotassium ion transmembrane transport
Functional Information from PDB Data
site_idAC1
Number of Residues9
Detailsbinding site for residue K A 402
ChainResidue
AGLY132
ATYR133
AGLY241
APHE242
AK403
BGLY132
BTYR133
BGLY241
BPHE242

site_idAC2
Number of Residues10
Detailsbinding site for residue K A 403
ChainResidue
AILE131
AGLY132
AVAL240
AGLY241
AK402
AK404
BILE131
BGLY132
BVAL240
BGLY241

site_idAC3
Number of Residues9
Detailsbinding site for residue K A 404
ChainResidue
ATHR130
AILE131
ATHR239
AVAL240
AK403
BTHR130
BILE131
BTHR239
BVAL240

site_idAC4
Number of Residues4
Detailsbinding site for residue K A 405
ChainResidue
ATHR130
ATHR239
BTHR130
BTHR239

Functional Information from PROSITE/UniProt
site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YTCEVTH
ChainResidueDetails
LTYR191-HIS197

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues146
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues28
DetailsIntramembrane: {"description":"Helical; Name=Pore helix 1","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues22
DetailsIntramembrane: {"evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues22
DetailsTopological domain: {"description":"Extracellular","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues42
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues26
DetailsIntramembrane: {"description":"Helical; Name=Pore helix 2","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues10
DetailsRegion: {"description":"Selectivity filter 1","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues10
DetailsRegion: {"description":"Selectivity filter 2","evidences":[{"source":"UniProtKB","id":"Q9NYG8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues16
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P57789","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

250359

PDB entries from 2026-03-11

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