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AnaSpec Includes Ghrelin and Obestatin Peptides in GO® Collection


San Jose, CA, January 19, 2012 --(PR.com)-- AnaSpec, EGT Group, a leading provider of integrated proteomic and genomic solutions, offers a wide range of ghrelin and obestatin GO® (catalog) peptides for research use.

In 1999, Kojima and his group (1) reported the discovery of a growth hormone secretagogue that is involved in the release of growth hormone from the anterior pituitary through activation of the growth hormone secretagogue receptor (GHS-R), which they termed Ghrelin (ghre from a Proto-Indo-European root meaning to grow). Ghrelin, a 28-amino-acid peptide hormone produced by the stomach of mammals, is a peptide with an n-octanoyl modification at Ser3 (n-octanoylation is essential for its activity). It stimulates appetite and food intake and decreases fat utilization. The secretion of ghrelin is augmented under conditions of both gastric emptying and filling, and its release stimulated by intestinal hormones (1-5).

In 2005, Hsueh’s group (6) found a peptide fragment from the same ghrelin gene that has opposite effects from those of Ghrelin. They named this peptide Obestatin (obedere from Latin, meaning to devour, and statin denoting suppression). Obestatin binds to the orphan G protein-coupled receptor GPR39 and suppresses food intake, inhibits jejunal contraction and decreases body weight gain (6).

References:
1. Kojima, M. et al. Nature 402, 656 (1999).
2. Kleinz, MJ. et al. Cardiovasc Res. 69, 227 (2006).
3. Murakami, N. et al. J. Endocrinol. 174, 283 (2002).
4. Nishi, Y. et al. Endocrinol. 146, 2709 (2005).
5. Cowley, MA. et al. Neuron 37, 649 (2003).
6. Zhang, JV. et al. Science 310, 996 (2005).

For more information, please visit http://www.anaspec.com/products/promotions.asp?col=2&row=1

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Contact Information
AnaSpec, Inc.
Tiffany Kao
510-791-9560
Contact
www.anaspec.com

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