Cysteine - Wikipedia
Cysteine (symbol Cys or C; [5] / ˈsɪstɪiːn /) [6] is a semiessential [7] proteinogenic amino acid with the formula HOOC−CH (−NH2)−CH2−SH. The thiol side chain in cysteine often participates in enzymatic reactions as a nucleophile. Cysteine is chiral, but both D and L …
半胱氨酸 - 百度百科
半胱氨酸（cysteine；Cys）的化学名称为2-氨基-3-巯基丙酸，它是脂肪族含巯基的极性α-氨基酸。 半胱氨酸是人体的条件必需氨基酸和生糖氨基酸，可由体内的蛋氨酸（甲硫氨酸，人体必需氨基酸）转化而来，可与胱氨酸互相转化。
Effects of the Usage of l-Cysteine (l-Cys) on Human Health
Abstract. This review summarizes recent knowledge about the use of the amino acid l-Cysteine (l-Cys) through diet, nutritional supplements or drugs with the aim to improve human health or treat certain diseases.Three databases (PubMed, Scopus, and Web of Science) and different keywords have been used to create a database of documents published between 1950 and 2017 in scientific journals in ...
半胱氨酸 - 维基百科，自由的百科全书
2024年10月19日 · 半胱氨酸 （Cysteine，可简写为 Cys 或 C） [1] 是20种天然氨基酸之一，是一种含硫（与 甲硫氨酸 一样）的非必需氨基酸。. 动物 体内可经由 甲硫氨酸 和 丝氨酸 合成。. 有缓解修复放射线对人体的损伤作用。. 在人体内还有范围广泛的 解毒 作用，是 丙烯腈 及芳香 ...
Cysteine | Antioxidant, Protein Synthesis & Metabolism | Britannica
Cysteine, Sulfur-containing nonessential amino acid. In peptides and proteins, the sulfur atoms of two cysteine molecules are bonded to each other to make cystine, another amino acid. The bonded sulfur atoms form a disulfide bridge, a principal factor …
Cysteine | C3H7NO2S | CID 5862 - PubChem
Cysteine is an important source of sulfur in human metabolism, and although it is classified as a non-essential amino acid, cysteine may be essential for infants, the elderly, and individuals with certain metabolic disease or who suffer from malabsorption syndromes. Cysteine may at some point be recognized as an essential or conditionally ...
半胱氨酸，身体的解毒剂 - 知乎 - 知乎专栏
半胱氨酸（L- Cysteine）是一种非必需氨基酸，但是具有超强的生化作用，它的基本化学构成包括氨基、氮、碳、氧和氢再加上含硫的巯基。 “巯基”，是常见的抗菌剂乙汞硫水杨酸钠(商品名硫柳汞 注1)，表明这个化合物…
Cysteine - an overview | ScienceDirect Topics
Cysteine is a sulfur-containing compound that serves as a precursor for various biological compounds and plays a role in reducing oxidative defense strategies in microorganisms. AI generated definition based on: Biochimica et Biophysica Acta (BBA) - …
Mitochondrial respiratory function is preserved under cysteine ...
2024年5月18日 · The proteinogenic amino acid cysteine (Cys) is a significant contributor to cellular functions due to its resident thiol group. Cysteine supplies this reactive sulfur in support...
Molecular basis for redox control by the human cystine ... - Nature
2021年12月8日 · Cysteine plays an essential role in cellular redox homoeostasis as a key constituent of the tripeptide glutathione (GSH). A rate limiting step in cellular GSH synthesis is the availability...