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5I5C

X-ray crystal structure of allo-Thr31-ShK

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0015459molecular_functionpotassium channel regulator activity
A0035821biological_processmodulation of process of another organism
A0042151cellular_componentnematocyst
A0042742biological_processdefense response to bacterium
A0090729molecular_functiontoxin activity
A0099106molecular_functionion channel regulator activity
B0005576cellular_componentextracellular region
B0015459molecular_functionpotassium channel regulator activity
B0035821biological_processmodulation of process of another organism
B0042151cellular_componentnematocyst
B0042742biological_processdefense response to bacterium
B0090729molecular_functiontoxin activity
B0099106molecular_functionion channel regulator activity
C0005576cellular_componentextracellular region
C0015459molecular_functionpotassium channel regulator activity
C0035821biological_processmodulation of process of another organism
C0042151cellular_componentnematocyst
C0042742biological_processdefense response to bacterium
C0090729molecular_functiontoxin activity
C0099106molecular_functionion channel regulator activity
Functional Information from PDB Data
site_idAC1
Number of Residues11
Detailsbinding site for residue SO4 A 101
ChainResidue
AARG1
CPHE15
CHOH216
ALYS22
ASER26
AHOH205
AHOH222
AHOH234
BHOH229
CTHR13
CALA14

site_idAC2
Number of Residues5
Detailsbinding site for residue SO4 A 102
ChainResidue
ATHR13
AHOH201
AHOH211
AHOH228
BARG1

site_idAC3
Number of Residues5
Detailsbinding site for residue SO4 A 103
ChainResidue
ASER20
AMET21
ALYS22
AHOH202
AHOH239

site_idAC4
Number of Residues5
Detailsbinding site for residue LI B 101
ChainResidue
BCYS12
BTHR13
BGLN16
BCYS17
BCYS28

site_idAC5
Number of Residues5
Detailsbinding site for residue SO4 C 101
ChainResidue
CSER20
CMET21
CLYS22
CHOH202
CHOH223

site_idAC6
Number of Residues5
Detailsbinding site for residue GOL C 102
ChainResidue
CARG11
CGLN16
CTYR23
CHOH203
CHOH209

site_idAC7
Number of Residues6
Detailsbinding site for residue LI C 103
ChainResidue
CCYS12
CTHR13
CGLN16
CCYS17
CTYR23
CCYS28

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues15
DetailsSite: {"description":"Important residue for binding Kv1.3/KCNA3","evidences":[{"source":"PubMed","id":"26288216","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsSite: {"description":"Important residue for binding Kv1.3/KCNA3","evidences":[{"source":"PubMed","id":"8645244","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsSite: {"description":"Important residue for binding Kv1.3/KCNA3","evidences":[{"source":"PubMed","id":"26288216","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8645244","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsSite: {"description":"Key residue for binding both Kv1.2/KCNA2 and Kv1.3/KCNA3 (occludes the channel pore like a cork in a bottle)","evidences":[{"source":"PubMed","id":"26288216","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8645244","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

238582

PDB entries from 2025-07-09

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