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9IJW

Serine protease inhibitor HCIQ2c1 from Heteractis crispa with TRPA1 mediated antinociceptive activity

Functional Information from GO Data
ChainGOidnamespacecontents
A0004867molecular_functionserine-type endopeptidase inhibitor activity
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
A0008200molecular_functionion channel inhibitor activity
A0030414molecular_functionpeptidase inhibitor activity
A0035821biological_processmodulation of process of another organism
A0042151cellular_componentnematocyst
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. FiyGGCggngnnFetlhaC
ChainResidueDetails
APHE34-CYS52

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":"Reactive bond for trypsin","evidences":[{"source":"UniProtKB","id":"P31713","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsSite: {"description":"Important for the stabilization when complexed with trypsin","evidences":[{"source":"UniProtKB","id":"P0DMJ5","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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