Inactive high molecular weight forms of ureasa produced by sodium l-usnate

Abstract

Inactive High Molecular Weight Forms of Ureasa Produced by Sodium L-usnate. Rev. esp. Fisiol., 30, 1-4. 1974. Crystalline urease is inactivated by the sodium salt of L-usnic acid. This inactiva- tion is accelerated by urea and L-cysteine. The effect of the drug seems to be in relation to the formation of high molecular weight aggregates.