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・ Melanochyla fasciculiflora
・ Melanochyla longipetiolata
・ Melanochyla nitida
・ Melanocinclis
・ Melanocinclis gnoma
・ Melanocinclis lineigera
・ Melanocinclis nigrilineella
・ Melanocinclis sparsa
・ Melanocinclis vibex
・ Melanocoraebus
・ Melanocortin
・ Melanocortin 1 receptor
・ Melanocortin 3 receptor
・ Melanocortin 4 receptor
・ Melanocortin 5 receptor
Melanocortin receptor
・ Melanocorypha
・ Melanocyma
・ Melanocyma faunula
・ Melanocyte
・ Melanocyte-inhibiting factor
・ Melanocyte-stimulating hormone
・ Melanocytic nevus
・ Melanocytic oral lesion
・ Melanocytic tumor
・ Melanocytic tumors of uncertain malignant potential
・ Melanodaedala
・ Melanodaedala scopulosana
・ Melanodendron
・ Melanodera


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Melanocortin receptor : ウィキペディア英語版
Melanocortin receptor
Melanocortin receptors are members of the rhodopsin family of 7-transmembrane G protein-coupled receptors.
There are five known members of the melanocortin receptor system〔(Melanocortins and the Melanocortin Receptor )〕 each with differing specificities for melanocortins:
* . MC1R is associated with pigmentation genetics.
* . MC2R is also known as the ACTH receptor or corticotropin receptor because it is specific for ACTH alone.
* . MC3R
* . Defects in MC4R are a cause of autosomal dominant obesity, accounting for 6% of all cases of early-onset obesity.
* . MC5R
These receptors are inhibited by endogenous inverse agonists agouti signalling peptide and agouti-related peptide, and activated by synthetic (i.e. afamelanotide) and endogenous agonist melanocyte-stimulating hormones.
==Selective ligands==
Several selective ligands for the melanocortin receptors are known, and some synthetic compounds have been investigated as potential tanning, anti-obesity and aphrodisiac drugs, with tanning effects mainly from stimulation of MC1, while anorectic and aphrodisiac effects appear to involve both MC3 and MC4. MC1, MC3 and MC4 are widely expressed in the brain, and are also thought to be responsible for effects on mood and cognition.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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