Biological hydropersulfides and related polysulfides - a new concept and perspective in redox biology.

Biological hydropersulfides and related polysulfides - a new concept and perspective in redox biology.
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DOI:
10.1002/1873-3468.13090
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发表时间:
2018-06
期刊:
影响因子:
3.5
通讯作者:
Akaike T
Akaike T
中科院分区:
生物学3区
文献类型:
--
作者:
Fukuto JM;Ignarro LJ;Nagy P;Wink DA;Kevil CG;Feelisch M;Cortese-Krott MM;Bianco CL;Kumagai Y;Hobbs AJ;Lin J;Ida T;Akaike T

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硫醇(RSH,例如半胱氨酸和含半胱氨酸的蛋白质/肽)的化学生物学几十年来一直是人们极为感兴趣的话题,因为它们在蛋白质结构/折叠、氧化还原信号传导、金属连接、细胞保护和酶学中发挥着作用。虽然许多关于硫醇/硫生物化学的研究都集中在硫醇上,但相对忽视的是氢过硫化物 (RSSH) 和高阶多硫物质 (RSSnH、RSSnR、n > 1)。最近的挑衅性工作已经提到了 RSSH 和相关 RSSnH 的流行及其可能的生理重要性。半胱氨酸 (Cys-SSH) 的 RSSH 与含 Cys-SSH 的蛋白质一起普遍存在于哺乳动物系统中。 RSSH 功能尚未像其他生物学相关的硫衍生物(例如,次磺酸、二硫化物等)那样得到研究,而这些衍生物在细胞信号传导中的作用已被强烈表明。最近对 Cys-SSH 生物合成和翻译掺入蛋白质的发现明确表明了其根本重要性,并且需要对 RSSH 的生理学进行更深入的研究。在这篇综述中,我们讨论了目前报道的 RSSH(和相关物种)的化学生物学,作为讨论它们可能的生理作用的前奏。
The chemical biology of thiols (RSH, e.g., cysteine and cysteine‐containing proteins/peptides) has been a topic of extreme interest for many decades due to their reported roles in protein structure/folding, redox signaling, metal ligation, cellular protection, and enzymology. While many of the studies on thiol/sulfur biochemistry have focused on thiols, relatively ignored have been hydropersulfides (RSSH) and higher order polysulfur species (RSSnH, RSSnR, n > 1). Recent and provocative work has alluded to the prevalence and likely physiological importance of RSSH and related RSSnH. RSSH of cysteine (Cys‐SSH) has been found to be prevalent in mammalian systems along with Cys‐SSH‐containing proteins. The RSSH functionality has not been examined to the extent of other biologically relevant sulfur derivatives (e.g., sulfenic acids, disulfides, etc.), whose roles in cell signaling are strongly indicated. The recent finding of Cys‐SSH biosynthesis and translational incorporation into proteins is an unequivocal indication of its fundamental importance and necessitates a more profound look into the physiology of RSSH. In this Review, we discuss the currently reported chemical biology of RSSH (and related species) as a prelude to discussing their possible physiological roles.
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