Section 1
Chapter 419

Kinetics of glucose-6-phosphate dehydrogenase from normal and neoplastic mammary tissue

Ringler, M.I.; Hilf, R.

Enzyme 18(5): 257-261


ISSN/ISBN: 0013-9432
PMID: 4152215
Accession: 000418028

Deviation from classical Michaelis-Menten kinetics, as exemplified by abrupt downward breaks from the anticipated linearity usually obtained in double reciprocal plots, was observed for glucose-6-phosphate dehydrogenase from lactating rat mammary glands (excised 15 days post partum) and from R3230AC rat mammary carcinoma. These biphasic kinetics occurred when glucose-6-phosphate was the varied substrate, but linear kinetics were obtained when NADP was the varied substrate.

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