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1R3K

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

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0005886cellular_componentplasma membrane
A0030183biological_processB cell differentiation
A0042105cellular_componentalpha-beta T cell receptor 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 Residues26
DetailsTOPO_DOM: Cytoplasmic
ChainResidueDetails
CMET1-ARG27

site_idSWS_FT_FI2
Number of Residues45
DetailsTRANSMEM: Helical
ChainResidueDetails
CALA28-ALA50
CGLY88-ALA111

site_idSWS_FT_FI3
Number of Residues16
DetailsTOPO_DOM: Extracellular
ChainResidueDetails
CGLU51-THR61
CLEU81-TRP87

site_idSWS_FT_FI4
Number of Residues10
DetailsINTRAMEM: Helical; Pore-forming
ChainResidueDetails
CTYR62-THR72

site_idSWS_FT_FI5
Number of Residues7
DetailsINTRAMEM: Pore-forming
ChainResidueDetails
CALA73-ASP80

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PDB entries from 2025-06-11

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