pubmed:abstractText |
A factor responsible for the in vivo metabolism of PS-5 was isolated from the microsomal fraction of the rat kidney. This factor, which did not attack penicillins and cephalosporins, was enzymologically identified with particle-bound renal dipeptidase. Under the action of this factor, PS-5 was inactivated to give three products designated PS-5D I, PS-5D II and PS-5D III.
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