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1Q2K

Solution structure of BmBKTx1 a new potassium channel blocker from the Chinese Scorpion Buthus martensi Karsch

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0008200molecular_functionion channel inhibitor activity
A0015459molecular_functionpotassium channel regulator activity
A0035821biological_processmodulation of process of another organism
A0090729molecular_functiontoxin activity
A0099106molecular_functionion channel regulator activity
Functional Information from PROSITE/UniProt
site_idPS01138
Number of Residues22
DetailsSCORP_SHORT_TOXIN Scorpion short toxins signature. CrvkCvamgfss..GKCInskCkC
ChainResidueDetails
ACYS8-CYS29

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues30
DetailsPeptide: {"description":"Potassium channel toxin alpha-KTx 19.1","featureId":"PRO_0000044898"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsSite: {"description":"Crucial for toxin binding","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsSite: {"description":"Basic residue of the functional dyad","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Aromatic residue of the functional dyad","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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