期刊
ISCIENCE
卷 23, 期 9, 页码 -出版社
CELL PRESS
DOI: 10.1016/j.isci.2020.101479
关键词
-
资金
- Creation of Fundamental Technologies for Understanding and Control of Biosystem Dynamics, CREST from the Japan Science and Technology Agency (JST) [JPMJCR12W3]
- Japan Society for the Promotion of Science (JSPS) KAKENHI [17H06300, 17H06299, 18H03979]
- JSPS KAKENHI [JP15H05582, JP18H05431, JP17K14864]
- Judith and David Coffey Fund
- NHMRC Early Career Fellowship [APP1072440]
- Australian Diabetes Society
- Diabetes Australia Research grant
- Creation of Innovative Technology for Medical Applications Based on the Global Analyses and Regulation of Disease-Related Metabolites, PRESTO from JS1 [JPMJPR1538]
- Research on Development of New Drugs (GAPFREE) from the Japan Agency for Medical Research and Development, AMED
- AMED-CREST from AMED
- Yamagata prefectural government
- City ofTsuruoka
- Cancer Institute NSW
- Grants-in-Aid for Scientific Research [18H03979] Funding Source: KAKEN
Insulin regulates glucose metabolism through thousands of regulatory mechanisms; however, which regulatory mechanisms are keys to control glucose metabolism remains unknown. Here, we performed kinetic trans-omit analysis by integrating isotope-tracing glucose flux and phosphoproteornic data from insulin-stimulated adipocytes and built a kinetic mathematical model to identify key allosteric regulatory and phosphorylation events for enzymes. We identified nine reactions regulated by allosteric effectors and one by enzyme phosphorylation and determined the regulatory mechanisms for three of these reactions. Insulin stimulated glycolysis by promoting Glut4 activity by enhancing phosphorylation of AS160 at S595, stimulated fatty acid synthesis by promoting Acly activity through allosteric activation by glucose 6-phosphate or fructose 6-phosphate, and stimulated glutamate synthesis by alleviating allosteric inhibition of Gls by glutamate. Most of glycolytic reactions were regulated by amounts of substrates and products. Thus, phosphorylation or allosteric modulator-based regulation of only a few key enzymes was sufficient to change insulin-induced metabolism.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据