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1FYG

Solution structure of omega conotoxin SO3 determined by 1H-NMR

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0008200molecular_functionion channel inhibitor activity
Functional Information from PROSITE/UniProt
site_idPS60004
Number of Residues25
DetailsOMEGA_CONOTOXIN Omega-conotoxin family signature. CKaaGkPCSri...AYnCCTg.SCr..SGKC
ChainResidueDetails
ACYS1-CYS25

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues24
DetailsPeptide: {"description":"Omega-conotoxin SO-3","featureId":"PRO_0000034933"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsSite: {"description":"Important for calcium channel binding","evidences":[{"source":"UniProtKB","id":"P05484","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsModified residue: {"description":"Cysteine amide","evidences":[{"source":"PubMed","id":"26344359","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247947

PDB entries from 2026-01-21

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