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1DEN

PROTEINASE INHIBITOR HOMOLOGUES AS POTASSIUM CHANNEL BLOCKERS

Functional Information from GO Data
ChainGOidnamespacecontents
A0004867molecular_functionserine-type endopeptidase inhibitor activity
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
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_idPS00280
Number of Residues19
DetailsBPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FtwSGCggnsnrFktieeC
ChainResidueDetails
APHE35-CYS53

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues50
DetailsDomain: {"description":"BPTI/Kunitz inhibitor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00031","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsSite: {"description":"May be the major determinant of the binding affinity for potassium channels"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsSite: {"description":"Important for binding to potassium channels"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Not important for inhibition of potassium channels"}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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