Underlying mechanisms for sterol-induced ubiquitination and ER-associated degradation of HMG CoA reductase.
Underlying mechanisms for sterol-induced ubiquitination and ER-associated degradation of HMG CoA reductase.
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DOI:
10.1016/j.semcdb.2017.10.019
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发表时间:
2018-09
影响因子:
7.3
通讯作者:
DeBose-Boyd RA
中科院分区:
文献类型:
--
作者:
Johnson BM;DeBose-Boyd RA
Accelerated ubiquitination and subsequent endoplasmic reticulum (ER)-associated degradation (ERAD) constitute one of several mechanisms for feedback control of HMG CoA reductase, the rate-limiting enzyme in synthesis of cholesterol and nonsterol isoprenoids. This ERAD is initiated by the accumulation of certain sterols in ER membranes, which trigger binding of reductase to ER membrane proteins called Insigs. Insig-associated ubiquitin ligases facilitate ubiquitination of reductase, marking the enzyme for extraction across the ER membrane through a reaction that is augmented by nonsterol isoprenoids. Once extracted, ubiquitinated reductase becomes dislocated into the cytosol for degradation by 26S proteasomes. In this review, we will highlight several advances in the understanding of reductase ERAD, which includes the discovery for a role of the vitamin K2 synthetic enzyme UBIAD1 in the reaction and demonstration that sterol-accelerated ERAD significantly contributes to feedback regulation of reductase and cholesterol metabolism in livers of whole animals.
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影响因子:
1.9
作者:
Lin BR;Frausto RF;Vo RC;Chiu SY;Chen JL;Aldave AJ
通讯作者:
Aldave AJ
DOI:
10.1073/pnas.81.8.2538
发表时间:
1984-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
GRUNDY, SM;BILHEIMER, DW
通讯作者:
BILHEIMER, DW
影响因子:
15.9
作者:
KITA, T;BROWN, MS;GOLDSTEIN, JL
通讯作者:
GOLDSTEIN, JL
影响因子:
56.9
作者:
BROWN, MS;GOLDSTEIN, JL
通讯作者:
GOLDSTEIN, JL
影响因子:
15.9
作者:
GOLDBERG, IJ;HOLLERAN, S;GOODMAN, DS
通讯作者:
GOODMAN, DS