姓氏“ Sectionin”源自Sectionin受体,该受体是该家庭中首次克隆的。3,1975年,Sasaki等。33求解了胰高血糖素的第一个X射线晶体结构,一个家族B GPCR。34 The family corresponds to group B of the A – F system of classi cation, 3 and comprises 15 members including: vasoactive intestinal peptide receptors (vIPR1, vIPR2), glucagon- like peptide receptors (GLP1R, GLP2R), adenylate cyclase acti- vating polypeptide receptor (PAC1/ADCYAP1R1), growth- hormone-releasing hormone receptor (GHRHR), calcitonin and calcitonin-like receptors (CALCR, CALCRL), gastric inhibi- tory polypeptide receptor (GIPR), secretin receptor (SCTR), corticotropin-releasing hormone receptors (CRHR1, CRHR2), glucagon receptor (GCGR), and parathyroid hormone受体(PTHR1,PTHR2)。3,31这15个受体共享21和
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