Venom Protein Card


Accession: Pre05167    Apamin preproprotein   [Apis mellifera]

Basic info
Organism Apis mellifera
Taxonomy Insecta > Hymenoptera > Apidae > Apis > Apis mellifera
Protein Description Apamin preproprotein
Mass Weight 5223.34 Da
Isoelectric Point 8.77
Expression Highly expressed in venom gland
Annotation
Function Neurotoxin that blocks voltage-independent calcium-activated potassium channels (KCa2.1/KCNN1/SK1, KCa2.2/KCNN2/SK2, KCa2.3/KCNN3/SK3).
Pfam
PF17454 Bee_toxin
Features
Feature key Position Length
Signal Peptide 1..27 27
Peptide 28..45 18
Cross-Reference
NCBI Nucleotide NM_001011612.1
NCBI Protein NP_001011612.1
UniProt P01500
Sequence
ATGATTTCTATGCTGAGATGCATTTACTTATTTTTATCCGTTATTTTAATAACAAGCTACTTTGTGACACCAGTAATGCCTTGTAATTGTAAGGCACCAGAAACTGCACTTTGCGCAAGACGTTGTCAACAGCATGGATAA
MISMLRCIYLFLSVILITSYFVTPVMPCNCKAPETALCARRCQQHG

3D Structure
Publication
1. Gmachl M., Kreil G.;
"The precursors of the bee venom constituents apamin and MCD peptide are encoded by two genes in tandem which share the same 3'-exon.";
J. Biol. Chem. 270:12704-12708(1995).
2. Haux P., Sawerthal H., Habermann E.;
"Sequence analysis of bee venom neurotoxin (apamine) from its tryptic and chymotryptic cleavage products.";
Hoppe-Seyler's Z. Physiol. Chem. 348:737-738(1967).
3. Shipolini R., Bradbury A.F., Callewaert G.L., Vernon C.A.;
J. Chem. Soc. Chem. Commun. 1967:679-680(1967).
4. Pease J.H.B., Wemmer D.E.;
"Solution structure of apamin determined by nuclear magnetic resonance and distance geometry.";
Biochemistry 27:8491-8498(1988).
5. Andrianov A.M., Akhrem A.A.;
"Spatial structure of apamin in solution.";
Mol. Biol. (Mosk.) 25:937-945(1991).
6. Labee-Jullie C., Granier C., Alberico F., Defendini M.-L., Ceard B., Rochat H., van Rietschoten J.;
"Binding and toxicity of apamin. Characterization of the active site.";
Eur. J. Biochem. 196:639-645(1991).