isozyme

1. Eriocitrin (Eriodictyol-7-O-Rutinoside) is powerful antioxidative flavonoid; (1) Prevents oxidative damages caused by acute exercise-induced oxidative stress.(2) Lipid-lowering effects in a rat model of high-fat diet. 2. Dietary Eriocitrin ameliorates diet-induced hepatic steatosis with activation of mitochondrial biogenesis. 3. Eriocitrin and Apigenin were identified as new potent inhibitors of human carbonic anhydrase VA isozyme.

SAICAR, an intermediate of de novo purine nucleotide biosynthesis, selectively activates pyruvate kinase isoform M2 (PKM2) with an EC50 of 0.3 mM.

Chrysophanol-1-O-β-gentiobioside, an anthraquinone glycoside derived from the seeds of Cassia obtusifolia, specifically inhibits hMAO-A isozyme activity with an IC50 value of 96.15 μM.