含硫氨基酸代谢
中文名称
通路描述
主要的含硫氨基酸是蛋氨酸、半胱氨酸、同型半胱氨酸和半胱氨酸。其中前两者是蛋白质氨基酸。
这一组反应包含所有分解含硫氨基酸、它们相互转化以及从硫酸盐同化和还原中合成的过程。只有植物和微生物采用所有这些过程。人类无法从头合成任何含硫氨基酸,也不能将半胱氨酸转化为蛋氨酸(Brosnan & Brosnan, 2006)。
这一组反应包含所有分解含硫氨基酸、它们相互转化以及从硫酸盐同化和还原中合成的过程。只有植物和微生物采用所有这些过程。人类无法从头合成任何含硫氨基酸,也不能将半胱氨酸转化为蛋氨酸(Brosnan & Brosnan, 2006)。
英文描述
Sulfur amino acid metabolism The main sulfur amino acids are methionine, cysteine, homocysteine and taurine. Of these, the first two are proteinogenic.
This group of reactions contains all processes that 1) break down sulfur amino acids, 2) interconvert between them, and 3) synthesize them from solved sulfide which comes from sulfate assimilation and reduction. Only plants and microorganisms employ all processes. Humans cannot de novo synthesize any sulfur amino acid, nor convert cysteine to methionine (Brosnan & Brosnan, 2006).
This group of reactions contains all processes that 1) break down sulfur amino acids, 2) interconvert between them, and 3) synthesize them from solved sulfide which comes from sulfate assimilation and reduction. Only plants and microorganisms employ all processes. Humans cannot de novo synthesize any sulfur amino acid, nor convert cysteine to methionine (Brosnan & Brosnan, 2006).
所含基因
6 个基因