Ubiquitin metabolism in HeLa cells starved of amino acids

FEBS Letters

Rechsteiner, Martin²  Hiroi, Yuzo¹ 

[1] Department of Biochemistry, Nakamura Gakuen College, Fukuoka, Japan;Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84132, USA

关键词: Protein degradation;    Ubiquitin;    Autophagy;    Amino acid starvation;    Microinjection;   

DOI  :  10.1016/0014-5793(92)80757-8

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Radio-iodinated ubiquitin (Ub) was introduced into HeLa cells by red blood cell-mediated microinjection. The half-life and solubility of Ub, as well as the molecular weight distributions of Ub conjugates, were then measured in HeLa cells grown in complete medium or in medium lacking amino acids and fetal calf serum. Ub metabolism was similar in the two sets of cells. Thus, the dramatic changes in Ub metabolism induced by thermal stress are not observed upon amino acid deprivation.

【 授权许可】

Unknown