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Glucagon-Like Peptide 1 (7-36) Amide是一种强效葡萄糖依赖性促胰岛素肽,它是通过肠道L细胞中胰高血糖素原的翻译后加工而产生的。
编号:196604
CAS号:107444-51-9/89750-14-1
单字母:H2N-HAEGTFTSDVSSYLEGQAAKEFIAWLVKGR-CONH2
GLP-1(7-36), amide 是刺激胰岛素分泌的生理性肠降血糖素。
Glucagon-Like Peptide 1 (7-36) Amide是一种强效葡萄糖依赖性促胰岛素肽,它是通过肠道L细胞中胰高血糖素原的翻译后加工而产生的。
GLP-1是一种强效胰岛素促分泌剂,对β细胞的葡萄糖依赖性胰岛素分泌途径具有多种协同作用。
GLP-1 is a potent insulin secretagogue that has multiple synergetic effects on the glucose-dependent insulin secretion pathways of the beta-cell.
This is an incretin hormone that causes glucose dependent release of insulin by pancreatic beta cells. It is the cleavage product of GLP-1 (1-36) amide peptide.\xa0\xa0This\xa0peptide, human GLP-1 (7–36), shares the same sequence with preproglucagon (78-107), amide, human.
Glucagon-like peptide 1 (GLP-1) is a peptide hormone that belongs to the glucagon family. It is a 36 amino acid polypeptide and is naturally synthesized in the ileum of humans, pigs, and cows. GLP-1 is an activator of ion channels, which are protein structures that regulate the flow of ions across cell membranes. This hormone also has been shown to inhibit the activity of protein interactions at the cell membrane or ligand binding to receptors.\n\nGlucagon-like Peptide 1 (Human, 7-36 Amide) (CAS No. 107444-51-9) is a research tool that can be used for pharmacological studies as well as for antibody production. It has been shown to activate ion channels in cells and inhibit protein interactions at the cell membrane or ligand binding to receptors.
定义
胰高血糖素是众所周知的一种胰岛分泌的肽激素,它参与葡萄糖代谢的控制。
相关肽
胰高血糖素被合成为胰高血糖素,并经蛋白水解加工以在胰岛的α细胞内产生胰高血糖素。胰高血糖素原也在肠内表达,在那里它不被加工成胰高血糖素,而是被加工成胰高血糖素样肽家族。在胰腺和肠道中,都会产生三种类型的产品:
发现
胰高血糖素最初由罗切斯特大学的CP Kimball和John R. Murlin于1923年纯化。胰高血糖素的氨基酸序列在1950年代后期进行了描述2。
结构特征
胰高血糖素是由29个氨基酸组成的线性肽。它的主要序列在脊椎动物中几乎是完全保守的,并且在结构上与肽激素1的促分泌素家族有关。
行动方式
胰高血糖素通过其在细胞表面的受体发出信号。胰高血糖素 与胰高血糖素受体的细胞外环的结合导致 后者的构象变化,从而导致随后的偶联的G蛋白的活化。 已知至少两类G蛋白 与胰高血糖素受体的信号转导有关并参与其中, 即G s 和G q。G s 的激活导致 腺苷酸环化酶的激活,细胞内cAMP水平的增加,以及 随后蛋白激酶A(PKA)的激活。激活 的G q导致磷脂酶C,生产的激活 肌醇1,4,5-三磷酸,并随后释放细胞内 钙3。
参考:
1.Kieffer TJ and Habener JF (1999). The Glucagon-Like Peptides. Endocrine Reviews, 20 (6), 876-913
2. Jiang G, Zhang BB (2003). Glucagon and regulation of glucose metabolism. Am J Physiol Endocrinol Metab., 284(4), E671-8.
3. Kimball CP, Murlin JR (1923). Aqueous extracts of pancreas. III. Some precipitation reactions of insulin. J. Biol. Chem., 58(1), 337
4. Blache P, Kervran A, Bataille D (1988). Oxyntomodulin and glicentin: brain-gut peptides in the rat. Endocrinology, 123(6), 2782-7.
DOI | 名称 | |
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10.1210/endo.140.11.7143 | Glucagon-like peptide-1-(7-36)amide is transformed to glucagon-like peptide-1-(9-36)amide by dipeptidyl peptidase IV in the capillaries supplying the L cells of the porcine intestine | 下载 |
10.1016/s0140-6736(87)91194-9 | Glucagon-like peptide-1 7-36: a physiological incretin in man | 下载 |
10.1111/j.1432-1033.1993.tb17986.x | Dipeptidyl-peptidase IV hydrolyses gastric inhibitory polypeptide, glucagon-like peptide-1(7-36)amide, peptide histidine methionine and is responsible for their degradation in human serum | 下载 |
10.1007/BF00401145 | Normalization of fasting hyperglycaemia by exogenous glucagon-like peptide 1 (7-36 amide) in type 2 (non-insulin-dependent) diabetic patients | 下载 |