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3LDC

High resolution open MthK pore structure crystallized in 100 mM K+

Functional Information from PDB Data
site_idAC1
Number of Residues12
DetailsBINDING SITE FOR RESIDUE K A 1
ChainResidue
AK2
ATYR62
ATYR62
ATYR62
AK2
AK2
AK2
AGLY61
AGLY61
AGLY61
AGLY61
ATYR62

site_idAC2
Number of Residues16
DetailsBINDING SITE FOR RESIDUE K A 2
ChainResidue
AK1
AK1
AK1
AK1
AK3
AK3
AK3
AK3
AVAL60
AVAL60
AVAL60
AVAL60
AGLY61
AGLY61
AGLY61
AGLY61

site_idAC3
Number of Residues16
DetailsBINDING SITE FOR RESIDUE K A 3
ChainResidue
AK2
AK2
AK2
AK2
AK4
AK4
AK4
AK4
ATHR59
ATHR59
ATHR59
ATHR59
AVAL60
AVAL60
AVAL60
AVAL60

site_idAC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE K A 4
ChainResidue
AK3
AK3
AK3
AK3
ATHR59
ATHR59
ATHR59
ATHR59

site_idAC5
Number of Residues8
DetailsBINDING SITE FOR RESIDUE K A 5
ChainResidue
AHOH101
AHOH101
AHOH101
AHOH101
AHOH102
AHOH102
AHOH102
AHOH102

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=Outer helix M1"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsTopological domain: {"description":"Extracellular"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues9
DetailsIntramembrane: {"description":"Helical; Pore-forming","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues5
DetailsIntramembrane: {"description":"Pore-forming","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues25
DetailsTransmembrane: {"description":"Helical; Name=Inner helix M2"}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues5
DetailsMotif: {"description":"Selectivity filter"}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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