Recombinant Human AgRP Protein

Catalog # Availability Size / Price Qty
704-AG-002
R&D Systems Recombinant Proteins and Enzymes
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Product Details
Citations (2)
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Recombinant Human AgRP Protein Summary

Product Specifications

Purity
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Bioassay data are not available.
Source
Spodoptera frugiperda, Sf 21 (baculovirus)-derived human AgRP/ART protein
Ala21-Thr132 & Leu47-Thr132, both with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Ala21 & Leu47
Predicted Molecular Mass
13.3 kDa
SDS-PAGE
14-19 kDa, reducing conditions

Product Datasheets

704-AG

Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & 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.
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Background: AgRP/ART

Agouti-Related Protein (AgRP), the protein product of the Agouti-Related Transcript (ART), is a neuropeptide that regulates energy metabolism and the development of obesity by antagonizing alpha -melanocyte stimulating hormone ( alpha -MSH) on MC-3 and MC-4 receptors (1-4). AgRP is predominantly expressed in the hypothalamus and adrenal medulla (5). Mature human AgRP is a 112 amino acid (aa) peptide; its C-terminal portion contains ten conserved cysteines that form five disulfide bonds (5, 6). Human AgRP shares 82% and 72% aa sequence identity with mouse and rat AgRP, respectively. It shares 32% aa sequence identity with Agouti. As in the case of Agouti, the C-terminal cysteine-rich region is sufficient for biological activity (7). AgRP 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 in a mechanism that does not involve melanocortin receptors (14).

References
  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 Develop. 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.
Long Name
Agouti-related Protein
Entrez Gene IDs
181 (Human); 11604 (Mouse)
Alternate Names
agouti related protein homolog (mouse); agouti-related protein; AgRP; Agrt; AGRTMGC118963; ART; ARTagouti (mouse) related protein; ASIP2

Citations for Recombinant Human AgRP Protein

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. MC4R-dependent suppression of appetite by bone-derived lipocalin 2
    Authors: I Mosialou, S Shikhel, JM Liu, A Maurizi, N Luo, Z He, Y Huang, H Zong, RA Friedman, J Barasch, P Lanzano, L Deng, RL Leibel, M Rubin, T Nicholas, W Chung, LM Zeltser, KW Williams, JE Pessin, S Kousteni
    Nature, 2017;543(7645):385-390.
    Species: Human
    Sample Types: Whole Cells
    Applications: Control
  2. Effects of estradiol on cerebrospinal fluid levels of agouti-related protein in ovariectomized rhesus monkeys.
    Authors: Xiao E, Kim AJ, Dutia R
    Endocrinology, 2010;151(3):1002-9.
    Species: N/A
    Sample Types: N/A
    Applications: HPLC Standard

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