L-谷胱甘肽可用作脂肪肝的生物标记。此外,Oxiglutathione(氧化谷胱甘肽、二硫化谷胱甘肽、GSSG、双(半胱氨酸-S-))是谷胱甘肽的氧化形式,具有潜在的保护活性。
靶点Human Endogenous Metabolite
科研、实验中,L-谷胱甘肽还可用于酶法测定NADP和NADPH的氢受体。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
谷胱甘肽杂质 | glutathione | 128960-77-0 | C10H17N3O6S | 307.327 |
The oxidation of captopril (CpSH, 1-(D-3-mercapto-2-methylpropanoyl)-1-proline) by glutathione disulfide (GSSG) via thiol/disulfide exchange to form, in the first step, CpSSG and GSH and, in the second step, CpSSCp and GSH, has been studied in aqueous solution by 1H nmr. Due to slow rotation around the amide bond(s) of CpSH and CpSSCp and of the captopril part of CpSSG, separate resonances are observed for the cis and trans conformations across these bonds. Conformational equilibrium constants were estimated as a function of pH for CpSH, CpSSCp, and CpSSG from the intensities of resonances for the cis and trans isomers. These equilibrium constants were used in the determination of equilibrium constants for the two steps in the oxidation of CpSH by GSSG. The results suggest that CpSH has a greater tendency to reduce disulfide bonds by thiol/disulfide exchange at physiological pH, and thus form mixed disulfides, than do the thiol groups in amino acids. Also, the conformational equilibrium constants indicate that, at physiological pH, approximately two thirds of the captopril, either free or in a disulfide form, has the trans conformation.