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2MZF

Purotoxin-2 NMR structure in water

Replaces:  2MDN
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_idPS60029
Number of Residues27
DetailsSPIDER_CSTX Spider toxin CSTX family signature. CTPLLHDCSHDRHSCCRGDMFKYVCDC
ChainResidueDetails
ACYS4-CYS30

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues63
DetailsPeptide: {"description":"Purotoxin-2","featureId":"PRO_0000419528","evidences":[{"source":"PubMed","id":"22842000","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues43
DetailsRegion: {"description":"Knottin domain","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues19
DetailsRegion: {"description":"Linear cationic cytotoxin domain","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsModified residue: {"description":"Leucine amide","evidences":[{"source":"PubMed","id":"22842000","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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