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首页> 外文期刊>Advances in Experimental Medicine and Biology >Construction and Characterization of Melanocortin-2 and -4 Receptor Chimeras
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Construction and Characterization of Melanocortin-2 and -4 Receptor Chimeras

机译:Melanocortin-2和-4受体嵌合体的构建与表征

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摘要

The melanocortin system consists of five receptors, MCI-5, which are members of the superfamily of G protein coupled receptors (GPCRs). The MC1R and the MC3-5R are stimulated by the endogenous agonists a-MSH (Melanocyte Stimulating Hormone), beta-MSH, gamma_1MSH, gamma_2-MSH, and ACTH (Adrenocorticotropic Hormone), and activate the cAMP second messenger signaling pathway. The MC2R is unique in that it is only stimulated by ACTH [1]. ACTH and a-MSH only differ in that a-MSH represents the first thirteen amino acids of ACTH. This study will focus on the MC2R and the molecular mechanisms involved in its selective binding to ACTH over a-MSH. As the hMC2R plays a role in the regulation of cortisol production, this study may lead to a better understanding of the relationship between the MC2R, ACTH, and hypertension leading to heart disease and stroke.
机译:黑皮质素系统由五个受体MCI-5组成,它们是G蛋白偶联受体(GPCR)超家族的成员。 MC1R和MC3-5R受内源性激动剂a-MSH(黑素细胞刺激激素),β-MSH,γ_1MSH,γ_2-MSH和ACTH(促肾上腺皮质激素)刺激,并激活cAMP第二信使信号通路。 MC2R的独特之处在于它仅受ACTH [1]刺激。 ACTH和a-MSH的不同之处仅在于a-MSH代表ACTH的前13个氨基酸。这项研究将集中于MC2R及其通过a-MSH与ACTH选择性结合的分子机制。由于hMC2R在皮质醇产生的调节中起着重要作用,因此本研究可能使人们更好地理解MC2R,ACTH和高血压(导致心脏病和中风)之间的关系。

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