Recombinant Mouse AgRP C-Terminal Fragment Protein, CF

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

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Recombinant Mouse AgRP C-Terminal Fragment Protein, CF Summary

Details of Functionality
Measured by its ability to antagonize alpha -MSH-induced cAMP accumulation in HEK293 human embryonic kidney cells transfected with human Melanocortin-4 Receptor. Ollmann, M.M. et al. (1997) Science 278:135. The ED50 for this effect is typically 0.025-0.15 µg/mL in the presence of 10 ng/mL of alpha -MSH.
Source
E. coli-derived mouse AgRP/ART protein
Ser82-Thr131
Accession #
N-terminal Sequence
Ser82
Protein/Peptide Type
Recombinant Proteins
Gene
Agrp
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Note
<0.01 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
5.7 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse AgRP C-Terminal Fragment Protein, CF

  • agouti related protein homolog (mouse)
  • agouti-related protein
  • AgRP
  • Agrt
  • AGRTMGC118963
  • ART
  • ARTagouti (mouse) related protein
  • ASIP2

Background

Agouti-Related Protein (AgRP), the protein product of the Agouti-Related Transcript (ART), is a neuroprotein that regulates energy metabolism and the development of obesity by antagonizing alpha -melanocyte stimulating hormone ( alpha -MSH) action on MC-3 and MC-4 receptors (1-4). AgRP is predominantly expressed in the hypothalamus and adrenal medulla (5). Mature mouse AgRP is a 111 amino acid (aa) polypeptide; its C-terminal portion contains ten conserved cysteines that form five disulfide bonds (5, 6). Within the C-terminal region, mouse AgRP shares 80% and 90% aa sequence identity with human and rat AgRP, respectively. It also shares 44% aa sequence identity with Agouti. As with Agouti, the C-terminal cysteine-rich region is sufficient for biological activity (7). AgRP, however, is 100 times more potent than Agouti in antagonizing MC-3 and MC-4 receptors (8). AgRP also induces the beta -arrestin dependent endocytosis of MC-3 and MC-4 (9). Hypothalamic expression of AgRP is up-regulated in obesity and diabetes (5, 10), and chronic AgRP administration increases food intake and weight gain in rats (11). Genetically-linked polymorphisms of AgRP in humans are associated with susceptibility to anorexia nervosa (12, 13). In addition, AgRP inhibits the ACTH-induced synthesis of steroid hormones via a mechanism that does not involve melanocortin receptors (14).
  1. Martin, N.M. et al. (2006) Peptides 27:333.
  2. Fan, W. et al. (1997) Nature 385:165.
  3. Ollmann, M.M. et al. (1997) Science 278:135.
  4. Arora, S. and Anubhuti (2006) Neuropeptides 40:375.
  5. Shutter, J.R. et al. (1997) Genes Dev. 11:593.
  6. Kiefer, L.L. et al. (1998) Biochemistry 37:991.
  7. Jackson, P.J. et al. (2002) Biochemistry 41:7565.
  8. Fong, T.M. et al. (1997) Biochem. Biophys. Res. Commun. 237:629.
  9. Breit, A. et al. (2006) J. Biol. Chem. 281:37447.
  10. Katsuki, A. et al. (2001) J. Clin. Endocrinol. Metab. 86:1921.
  11. Small, C.K. et al. (2001) Diabetes 50:248.
  12. Vink, T. et al. (2001) Mol. Psychiatry 6:325.
  13. Dardennes, R.M. et al. (2007) Psychoneuroendocrinology 32:106.
  14. Doghman, M. et al. (2007) Mol. Cell. Endocrinol. 265-266:108.

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Bioinformatics

Gene Symbol Agrp
Uniprot