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7N43

Alpha-conotoxin OmIA with unusual pharmacological properties at alpha7 nicotinic receptors

Functional Information from GO Data
ChainGOidnamespacecontents
A0004888molecular_functiontransmembrane signaling receptor activity
A0005216molecular_functionmonoatomic ion channel activity
A0005230molecular_functionextracellular ligand-gated monoatomic ion channel activity
A0006811biological_processmonoatomic ion transport
A0016020cellular_componentmembrane
A0034220biological_processmonoatomic ion transmembrane transport
A0043083cellular_componentsynaptic cleft
B0004888molecular_functiontransmembrane signaling receptor activity
B0005216molecular_functionmonoatomic ion channel activity
B0005230molecular_functionextracellular ligand-gated monoatomic ion channel activity
B0006811biological_processmonoatomic ion transport
B0016020cellular_componentmembrane
B0034220biological_processmonoatomic ion transmembrane transport
B0043083cellular_componentsynaptic cleft
C0004888molecular_functiontransmembrane signaling receptor activity
C0005216molecular_functionmonoatomic ion channel activity
C0005230molecular_functionextracellular ligand-gated monoatomic ion channel activity
C0006811biological_processmonoatomic ion transport
C0016020cellular_componentmembrane
C0034220biological_processmonoatomic ion transmembrane transport
C0043083cellular_componentsynaptic cleft
D0004888molecular_functiontransmembrane signaling receptor activity
D0005216molecular_functionmonoatomic ion channel activity
D0005230molecular_functionextracellular ligand-gated monoatomic ion channel activity
D0006811biological_processmonoatomic ion transport
D0016020cellular_componentmembrane
D0034220biological_processmonoatomic ion transmembrane transport
D0043083cellular_componentsynaptic cleft
E0004888molecular_functiontransmembrane signaling receptor activity
E0005216molecular_functionmonoatomic ion channel activity
E0005230molecular_functionextracellular ligand-gated monoatomic ion channel activity
E0006811biological_processmonoatomic ion transport
E0016020cellular_componentmembrane
E0034220biological_processmonoatomic ion transmembrane transport
E0043083cellular_componentsynaptic cleft
F0005576cellular_componentextracellular region
F0030550molecular_functionacetylcholine receptor inhibitor activity
F0035792cellular_componenthost cell postsynaptic membrane
F0035821biological_processmodulation of process of another organism
F0090729molecular_functiontoxin activity
F0099106molecular_functionion channel regulator activity
G0005576cellular_componentextracellular region
G0030550molecular_functionacetylcholine receptor inhibitor activity
G0035792cellular_componenthost cell postsynaptic membrane
G0035821biological_processmodulation of process of another organism
G0090729molecular_functiontoxin activity
G0099106molecular_functionion channel regulator activity
H0005576cellular_componentextracellular region
H0030550molecular_functionacetylcholine receptor inhibitor activity
H0035792cellular_componenthost cell postsynaptic membrane
H0035821biological_processmodulation of process of another organism
H0090729molecular_functiontoxin activity
H0099106molecular_functionion channel regulator activity
I0005576cellular_componentextracellular region
I0030550molecular_functionacetylcholine receptor inhibitor activity
I0035792cellular_componenthost cell postsynaptic membrane
I0035821biological_processmodulation of process of another organism
I0090729molecular_functiontoxin activity
I0099106molecular_functionion channel regulator activity
J0005576cellular_componentextracellular region
J0030550molecular_functionacetylcholine receptor inhibitor activity
J0035792cellular_componenthost cell postsynaptic membrane
J0035821biological_processmodulation of process of another organism
J0090729molecular_functiontoxin activity
J0099106molecular_functionion channel regulator activity
Functional Information from PROSITE/UniProt
site_idPS60014
Number of Residues15
DetailsALPHA_CONOTOXIN Alpha-conotoxin family signature. CCShPACNvnnpHIC
ChainResidueDetails
FCYS2-CYS16

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues5
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues309
DetailsDomain: {"description":"Ig-like"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues80
DetailsPeptide: {"description":"Alpha-conotoxin OmIA","featureId":"PRO_0000247849","evidences":[{"source":"PubMed","id":"16803900","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues10
DetailsRegion: {"description":"Ser-Xaa-Pro motif, crucial for potent interaction with nAChR","evidences":[{"source":"UniProtKB","id":"P56636","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues15
DetailsSite: {"description":"Key residue for the high potency for alpha-7 nAChRs","evidences":[{"source":"PubMed","id":"34955864","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues5
DetailsModified residue: {"description":"Glycine amide","evidences":[{"source":"PubMed","id":"16678128","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16803900","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

242842

PDB entries from 2025-10-08

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