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3ERA

RECOMBINANT ERABUTOXIN A (S8T MUTANT)

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0030550molecular_functionacetylcholine receptor inhibitor activity
A0035821biological_processmodulation of process of another organism
A0090729molecular_functiontoxin activity
A0099106molecular_functionion channel regulator activity
B0005576cellular_componentextracellular region
B0030550molecular_functionacetylcholine receptor inhibitor activity
B0035821biological_processmodulation of process of another organism
B0090729molecular_functiontoxin activity
B0099106molecular_functionion channel regulator activity
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SCN B 101
ChainResidue
AARG33
ACYS54
BSER23
BCYS54

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SCN B 102
ChainResidue
BLYS47
ASER18
APRO19
AGLY20
BARG33
BTHR45

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SCN A 103
ChainResidue
AASN26
ASER53
ACYS55
AHOH246
BSER53

Functional Information from PROSITE/UniProt
site_idPS00272
Number of Residues19
DetailsSNAKE_TOXIN Snake toxins signature. GCg..CPtvkpgikls.CCesE
ChainResidueDetails
AGLY40-GLU58

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues28
DetailsRegion: {"description":"Loop I","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsRegion: {"description":"Stretch between loop I and loop II","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues34
DetailsRegion: {"description":"Loop II","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues22
DetailsRegion: {"description":"Loop III","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues6
DetailsSite: {"description":"Moderately important residue for binding to acetylcholine receptor","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues8
DetailsSite: {"description":"Very important residue for binding to acetylcholine receptor","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues6
DetailsSite: {"description":"Key residue for binding to acetylcholine receptor","evidences":[{"source":"PubMed","id":"7721859","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8419369","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues2
DetailsSite: {"description":"Key residue for binding to acetylcholine receptor","evidences":[{"source":"PubMed","id":"8419369","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues4
DetailsSite: {"description":"Very important residue for binding to acetylcholine receptor","evidences":[{"source":"PubMed","id":"8419369","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues4
DetailsSite: {"description":"Moderately important residue for binding to acetylcholine receptor","evidences":[{"source":"PubMed","id":"8419369","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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