生物发生
共同伴侣
支架蛋白
伴侣(临床)
细胞生物学
铁硫簇
酿酒酵母
生物
蛋白质折叠
热休克蛋白70
AAA蛋白
生物化学
ATP酶
化学
酵母
热休克蛋白
信号转导
酶
医学
病理
基因
作者
Rafał Dutkiewicz,Małgorzata Nowak,Elizabeth A. Craig,Jarosław Marszałek
出处
期刊:Methods in Enzymology
日期:2017-01-01
卷期号:: 161-184
被引量:19
标识
DOI:10.1016/bs.mie.2017.07.004
摘要
Hsp70 chaperones and their obligatory J-protein cochaperones function together in many cellular processes. Via cycles of binding to short stretches of exposed amino acids on substrate proteins, Hsp70/J-protein chaperones not only facilitate protein folding but also drive intracellular protein transport, biogenesis of cellular structures, and disassembly of protein complexes. The biogenesis of iron–sulfur (Fe–S) clusters is one of the critical cellular processes that require Hsp70/J-protein action. Fe–S clusters are ubiquitous cofactors critical for activity of proteins performing diverse functions in, for example, metabolism, RNA/DNA transactions, and environmental sensing. This biogenesis process can be divided into two sequential steps: first, the assembly of an Fe–S cluster on a conserved scaffold protein, and second, the transfer of the cluster from the scaffold to a recipient protein. The second step involves Hsp70/J-protein chaperones. Via binding to the scaffold, chaperones enable cluster transfer to recipient proteins. In eukaryotic cells mitochondria have a key role in Fe–S cluster biogenesis. In this review, we focus on methods that enabled us to dissect protein interactions critical for the function of Hsp70/J-protein chaperones in the mitochondrial process of Fe–S cluster biogenesis in the yeast Saccharomyces cerevisiae.
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