Imperatoxin A

Names

[ Name ]:
Imperatoxin A

Biological Activity

[Description]:

Imperatoxin A, a peptide toxin derived from the venom of the African scorpion Pandinus imperator, activator of Ca2+-release channels/ryanodine receptors (RyRs)? enhances the influx of Ca2+ from the sarcoplasmatic reticulum into the cell[1].

[Related Catalog]:

Signaling Pathways >> Membrane Transporter/Ion Channel >> Calcium Channel

[Target]

RyRs[1]

[References]

[1]. Georgina B Gurrola, et al. Imperatoxin A, a Cell-Penetrating Peptide from Scorpion Venom, as a Probe of Ca2+-Release Channels/Ryanodine Receptors. Pharmaceuticals (Basel). 2010 Apr 1;3(4):1093-1107.

Chemical & Physical Properties

[ Molecular Formula ]:
C₁₄₈H₂₆₀N₅₈O₄₅S₆

[ Molecular Weight ]:
3764.4

[ Appearance of Characters ]:
lyophilized powder

[ Storage condition ]:
−20°C

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H302-H312-H332

[ Precautionary Statements ]:
P280

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
20/21/22

[ Safety Phrases ]:
7-9-36/37

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

Articles

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+)-rel...

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 ...

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 (R...

Related Compounds

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.