Neurospora β-Galactosidase: Evidence for a Second Enzyme

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Science  06 Nov 1964:
Vol. 146, Issue 3645, pp. 777-778
DOI: 10.1126/science.146.3645.777


Two enzymes which hydrolyze the artificial substrate o-nitro-phenyl-β-D-galactopyranoside are produced by Neurospora. These enzymes precipitate at widely different concentrations of ammonium sulfate and differ with respect to induction, pH optima, sedimentation, and thermal stability.