Application

All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry. The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies^® protocols and other useful information.

Biochem/physiol Actions

The peptide ghrelin, one of the cleavage products of prepropeptide produced from the GHRL gene, functions in stimulating food intake and controlling energy balance. It serves as an endogenous ligand for the growth hormone secretagogue receptor 1α (GHSR 1α) and has potent stimulating effects on the secretion of growth hormone and food intake. It regulates body weight on long-term and appetite on short-term. Preadipocyte differentiation stimulated by ghrelin is found to increase BMI and negatively regulate the anorexigenic effect of leptin. Polymorhism in the GHRL gene is linked to variations in BMI, blood pressure, high-density lipoproteins, low-density lipoproteins, serum cholesterol, blood glucose, and metabolic syndrome. The other cleavage peptide of prepropeptide produced from the GHRL gene, obestatin, is found to negatively regulate food intake and gastrointestinal motility, but does not participate in the release of growth hormone.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Features and Benefits

Prestige Antibodies^® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies^® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.Every Prestige Antibody is tested in the following ways: IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues. Protein array of 364 human recombinant protein fragments.

General description

The gene GHRL (ghrelin) encodes a prepropeptide that cleaves to form two proteins ghrelin and obestatin. The gene is mapped to human chromosome 3p25-p26 containing four exons and three introns. Ghrelin is mainly produced in stomach and pancreas.

Immunogen

Appetite-regulating hormone precursor recombinant protein epitope signature tag (PrEST)

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC

Linkage

Corresponding Antigen APREST72081.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide