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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Muscarinic acetylcholine receptor M3 ： ウィキペディア英語版 Muscarinic acetylcholine receptor M3 The cholinergic/acetylcholine receptor M3, also known as the muscarinic 3, is a muscarinic acetylcholine receptor. It is encoded by the human gene CHRM3.〔 The M3 muscarinic receptors are located at many places in the body, e.g., smooth muscles, the endocrine glands, the exocrine glands, lungs, pancreas and the brain. In the CNS, they induce emesis. Muscarinic M3 receptors are expressed in regions of the brain that regulate insulin homeostasis, such as the hypothalamus and dorsal vagal complex of the brainstem. These receptors are highly expressed on pancreatic beta cells and are critical regulators of glucose homoestasis by modulating insulin secretion. In general, they cause smooth muscle contraction and increased glandular secretions.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1131 )〕 They are unresponsive to PTX and CTX. ==Mechanism== Like the M1 muscarinic receptor, M3 receptors are coupled to G proteins of class Gq, which upregulate phospholipase C and, therefore, inositol trisphosphate and intracellular calcium as a signalling pathway. The calcium function in vertebrates also involves activation of protein kinase C and its effects. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Muscarinic acetylcholine receptor M3」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.