Mastoparan X

Cat. No. 1896

Mastoparan X Ile-Asn-Trp-Lys-Gly-Ile-Ala-Ala-Met-Ala-Lys-Lys-Leu-Leu-NH2

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Biological Activity

Amphiphilic G protein activator peptide that binds to Gi and Go. Also binds with high affinity to calmodulin (Kd ~ 0.9 nM) and inhibits sarcoplasmic reticulum Ca2+-ATPase (Ki = 4.4 mM).

Technical Data


(Modifications: Leu-14 = C-terminal amide)

Soluble to 1 mg/ml in water
Desiccate at -20°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet


Higashijima et al (1990) Regulation of Gi and Go by mastoparan, related amphiphilic peptides, and hydrophobic amines. J.Biol.Chem. 265 14176. PMID: 2117607.

Sukumar and Higashijima (1992) G protein-bound conformation of mastoparan-X, a receptor-mimetic peptide. J.Biol.Chem. 267 21421. PMID: 1400455.

Longland et al (1999) The mechanism of inhibition of the Ca2+-ATPase by mastoparan. J.Biol.Chem. 274 14799. PMID: 10329678.

If you know of a relevant citation for this product please let us know.

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Keywords: Mastoparan X, supplier, G, protein, activators, peptide, Gi, Go, Heterotrimeric, MastoparanX, G Protein (Heterotrimeric) Activators

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