glu·ta·thi·one (gl  t -th   n)n. A polypeptide, C10H17N3O6S, of glycine, cysteine, and glutamic acid that occurs widely in plant and animal tissues and is important in biological oxidation-reduction reactions. |
glutathione [ˌgluːtəˈθaɪəʊn -θaɪˈəʊn]
n
(Life Sciences & Allied Applications / Biochemistry) Biochem a tripeptide consisting of glutamic acid, cysteine, and glycine: important in biological oxidations and the activation of some enzymes. Formula: C10H17N3O6S
[from gluta(mic acid) + thi- + -one]
| glutathione (glt-thn) A polypeptide consisting of glycine, cysteine, and glutamic acid that occurs widely in plant and animal tissues. It is important in cellular respiration in both plants and animals, and serves as a cofactor for many enzymes. It is a major protective mechanism against oxidative stress. For example, it protects red blood cells from hydrogen peroxide, a toxic byproduct of certain metabolic reactions. |
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