Imperatoxin A

Imperatoxin A Structure
Imperatoxin A structure
Common Name Imperatoxin A
CAS Number 172451-37-5 Molecular Weight 3764.4
Density N/A Boiling Point N/A
Molecular Formula C148H260N58O45S6 Melting Point N/A
MSDS Chinese USA Flash Point N/A
Symbol GHS07
GHS07
Signal Word Warning

Scorpion toxins targeted against the sarcoplasmic reticulum Ca(2+)-release channel of skeletal and cardiac muscle.

Proc. Natl. Acad. Sci. U. S. A. 89 , 12185-12189, (1992)

We report the purification of two peptides, called "imperatoxin inhibitor" and "imperatoxin activator," from the venom of the scorpion Pandinus imperator targeted against ryanodine receptor Ca(2+)-release channels. Imperatoxin inhibitor has a M(r) of approxim...

Peptide probe of ryanodine receptor function. Imperatoxin A, a peptide from the venom of the scorpion Pandinus imperator, selectively activates skeletal-type ryanodine receptor isoforms.

J. Biol. Chem. 270 , 28696-28704, (1995)

We have used [3H]ryanodine binding experiments and single channel recordings to provide convergent descriptions of the effect of imperatoxin A (IpTxa), a approximately 5-kDa peptide from the venom of the scorpion Pandinus imperator (Valdivia, H. H., Kirby, M....

Primary structure and synthesis of Imperatoxin A (IpTx(a)), a peptide activator of Ca2+ release channels/ryanodine receptors.

FEBS Lett. 405 , 385-389, (1997)

We present the complete amino acid sequence of Imperatoxin A (IpTx(a)), a 33-amino-acid peptide from the venom of the scorpion P. imperator which activates Ca2+ release channels/ryanodine receptors (RyR) of sarcoplasmic reticulum (SR). The amino acid sequence...