Sulphydryl groups essential for the penicillinase activity of Aerobacter cloacae.

Abstract

ALTHOUGH many enzymes possess sulphydryl groups essential for enzymatic activity there have been, so far as is known, no reports of these or indeed of any other types of essential group necessary for the enzymatic activity of a penicillinase. Evidence is given here to show that sulphydryl groups are essential for the penicillinase activity of a strain of Aerobacter cloacae.