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1IE6

SOLUTION STRUCTURE OF IMPERATOXIN A

Functional Information from GO Data
ChainGOidnamespacecontents
A0005246molecular_functioncalcium channel regulator activity
A0005576cellular_componentextracellular region
A0019855molecular_functioncalcium channel inhibitor activity
A0035821biological_processmodulation of process of another organism
A0090729molecular_functiontoxin activity
A0099106molecular_functionion channel regulator activity
Functional Information from PROSITE/UniProt
site_idPS60028
Number of Residues30
DetailsSCORPION_CALCINE Scorpion calcine family signature. ClphlkrCkadndCCgkkCkrrgtnaekRC
ChainResidueDetails
ACYS3-CYS32

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues32
DetailsPeptide: {"description":"Imperacalcin","featureId":"PRO_0000044949","evidences":[{"source":"PubMed","id":"9108323","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsRegion: {"description":"Important for stimulation of [3H]ryanodine binding to RYR1","evidences":[{"source":"PubMed","id":"14535845","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsRegion: {"description":"Essential for stimulation of [3H]ryanodine binding to RYR1","evidences":[{"source":"PubMed","id":"14535845","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsSite: {"description":"Important for stimulation of [3H]ryanodine binding to RYR1","evidences":[{"source":"PubMed","id":"14535845","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues3
DetailsSite: {"description":"Essential for stimulation of [3H]ryanodine binding to RYR1","evidences":[{"source":"PubMed","id":"14535845","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247947

PDB entries from 2026-01-21

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