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1R3K

potassium channel KcsA-Fab complex in low concentration of Tl+

Functional Information from GO Data
ChainGOidnamespacecontents
A0002250biological_processadaptive immune response
A0005576cellular_componentextracellular region
A0005886cellular_componentplasma membrane
A0030183biological_processB cell differentiation
A0042105cellular_componentalpha-beta T cell receptor complex
A0071735cellular_componentIgG immunoglobulin complex
C0005249molecular_functionvoltage-gated potassium channel activity
C0006813biological_processpotassium ion transport
C0008076cellular_componentvoltage-gated potassium channel complex
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE DGA C 201
ChainResidue
AGLU53
CPRO63
CARG89

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE TL C 301
ChainResidue
CTYR78
CTYR78
CTYR78
CTYR78

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE TL C 302
ChainResidue
CTHR75
CTHR75
CTHR75
CTHR75

Functional Information from PROSITE/UniProt
site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YTCEATH
ChainResidueDetails
ATYR192-HIS198

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues97
DetailsDomain: {"description":"Ig-like","evidences":[{"source":"PROSITE-ProRule","id":"PRU00114","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues96
DetailsRegion: {"description":"CH1"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues45
DetailsTransmembrane: {"description":"Helical"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues16
DetailsTopological domain: {"description":"Extracellular"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues10
DetailsIntramembrane: {"description":"Helical; Pore-forming"}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues7
DetailsIntramembrane: {"description":"Pore-forming"}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues5
DetailsMotif: {"description":"Selectivity filter"}
ChainResidueDetails

243911

PDB entries from 2025-10-29

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