What is "sarcin"

Hypoxanthin \Hy`po*xan"thin\, n. [Pref. hypo- + xanthin.] (Physiol. Chem.) A crystalline, nitrogenous substance, closely related to xanthin and uric acid, widely distributed through the animal body, but especially in muscle tissue; -- called also sarcin, sarkin.

n. 1 hypoxanthin 2 A cytotoxic ribonuclease produced by ''Aspergillus giganteus''