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Agouti-related Protein (AGRP) (25-82), human

现货
Catalog No.
A1134
刺鼠相关肽(25-82)
组合的产品项目
规格价格库存 数量
1mg
¥ 1,800.00
现货
5mg
¥ 5,400.00
现货
10mg
¥ 9,000.00
现货
25mg
¥ 12,600.00
现货

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Background

Agouti-related protein also called Agouti-related peptide (AgRP) is a neuropeptide produced in the brain by the AgRP/NPY neuron. It is only synthesised in NPY containing cell bodies located in the ventromedial part of the arcuate nucleus in the hypothalamus(1). Agouti-related protein is primarily expressed in the adrenal gland, subthalamic nucleus and hypothalamus; with lower levels of expression in the testis, kidneys and lungs. The appetite stimulating effects of AgRP are inhibited by the hormone leptin and activated by the hormone ghrelin. Adipocytes secrete leptin in response to food intake. This hormone acts in the arcuate nucleus and inhibits the AgRP/NPY neuron from releasing orexigenic peptides(2). Ghrelin has receptors on NPY/AgRP neurons that stimulate the secretion of NPY and AgRP to increase appetite. AgRP is stored in intracellular secretory granules and is secreted via a regulated pathway.The transcriptional and secretory action of AgRP is regulated by inflammatory signals. Levels of AgRP are increased during periods of fasting. It has been found that AgRP stimulates the hypothalamic-pituitary-adrenocortical axis to release ACTH, cortisol and prolactin. It also enhances the ACTH response to IL-1-beta, suggesting it may play a role in the modulation of neuroendocrine response to inflammation(3)

 

A1134_1 

Figurethe structures of Agouti-related Protein (AGRP)

A1134_2

Figure2  the Agouti-related Protein (AGRP) pathway

Ref:

1. Bäckberg M, Madjid N, Ogren SO, Meister B (June 2004). "Down-regulated expression of agouti-related protein (AGRP) mRNA in the hypothalamic arcuate nucleus of hyperphagic and obese tub/tub mice". Brain Res. Mol. Brain Res. 125 (1-2): 129–39.

2. Enriori PJ, Evans AE, Sinnayah P, Jobst EE, Tonelli-Lemos L, Billes SK, Glavas MM, Grayson BE, Perello M, Nillni EA, Grove KL, Cowley MA (March 2007). "Diet-induced obesity causes severe but reversible leptin resistance in arcuate melanocortin neurons". Cell Metabolism 5 (3): 181–94.

3. Xiao E, Xia-Zhang L, Vulliémoz NR, Ferin M, Wardlaw SL (May 2003). "Agouti-related protein stimulates the hypothalamic-pituitary-adrenal (HPA) axis and enhances the HPA response to interleukin-1 inthe primate". Endocrinology 144 (5): 1736–41.

 

 

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
M.Wt6415.39
FormulaC279H468N80O90S1
SynonymsH2N-Leu-Ala-Pro-Met-Glu-Gly-Ile-Arg-Arg-Pro-Asp-Gln-Ala-Leu-Leu-Pro-Glu-Leu-Pro-Gly-Leu-Gly-Leu-Arg-Ala-Pro-Leu-Lys-Lys-Thr-Thr-Ala-Glu-Gln-Ala-Glu-Glu-Asp-Leu-Leu-Gln-Glu-Ala-Gln-Ala-Leu-Ala-Glu-Val-Leu-Asp-Leu-Gln-Asp-Arg-Glu-Pro-Arg-OH
Solubility≥100mg/mL in H2O, Limited solubility in DMSO
运输条件试用装:蓝冰运输。 其他可选规格:常温运输或根据您的要求用蓝冰运输。
一般建议为了使其更好的溶解,请用37℃加热试管并在超声波水浴中震动片刻。不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。

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化学结构

Agouti-related Protein (AGRP) (25-82), human