Regulation of Microsomal HMG-CoA Reductase by Enzyme-Lipid Interactions
نویسندگان
چکیده
منابع مشابه
Activation of HMG-CoA reductase by microsomal phosphatase.
HMG-CoA reductase activity can be modulated by a reversible phosphorylation-dephosphorylation with the phosphorylated form of the enzyme being inactive and the dephosphorylated form, active. Phosphatases from diverse sources, including cytosol, have been shown to dephosphorylate and activate HMG-CoA reductase. The present study demonstrates phosphatase activity capable of activating HMG-CoA red...
متن کاملMeasurement of human leukocyte microsomal HMG-CoA reductase activity.
Methods were developed for determination of microsomal HMG-CoA reductase activity from freshly isolated human lymphocytes, monocytes, and granulocytes or cultured human lymphoid cells. Reductase activity in monocytes is approximately twice that in lymphocytes or granulocytes. The activity in cultured cells is approximately 34-fold greater than that in freshly isolated cells. Assay conditions we...
متن کاملTranscriptional regulation of HMG-CoA synthase and HMG-CoA reductase genes by human ACBP.
The acyl-CoA binding protein (ACBP) is an ubiquitary expressed multi-functional protein which regulates basic cellular functions such as fatty acid and steroid metabolism. Since ACBP is described to interact with the transcription factor hepatocyte nuclear factor 4 alpha (HNF-4alpha), we investigated the role of human ACBP on transcriptional regulation of the putative HNF-4alpha target gene HMG...
متن کاملRegulation of HMG-CoA reductase activity in plants.
This brief review summarizes the current literature on the regulation of HMG-CoA reductase (HMGR) in plants. The mevalonate pathway, which starts with the synthesis of mevalonate by HMGR, has more branch pathways in plants than in most other organisms, leading to a tremendous variety of isoprenoid products. Evidence suggests that HMGR is an important control point for the synthesis of many of t...
متن کاملGenetic and dietary interactions in the regulation of HMG-CoA reductase gene expression.
Inbred strains of mice exhibit large genetic variations in hepatic 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity. A tissue-specific genetic variation between the strains BALB/c and C57BL/6, resulting in about 5-fold higher levels in hepatic reductase activity in strain C57BL/6, was examined in detail. The activity difference between these two strains could be explained enti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1982
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(82)84589-x