n. (Biochem.) a type of luciferin produced by the firefly Photinus pyralis. Its structure has been elucidated, and chemically it is recognized as 4, 5-Dihydro-2-(6-hydroxy-2-benzothiazol-2-yl)-4-thiazolecarboxylic acid, C11H8N3O2S2. It has found use in a very sensitive assay for ATP, in which concentrations of ATP as low as 10-11 molar can be detected. [ MI11 ] [ PJC ]
n. (Biochem.) any of several substances found in luminescent organisms (such as the firefly, Photinus pyralis) which, when oxidized, produces an almost heatless light. It was first isolated from fireflies, and is the source of the firefly luminescence. See also firefly luciferin [ PJC ]
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