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Relation of Renal Glutamine Transam inase-ω-Amidase Activity to Ammonia Excretion in the Rat

Abstract

INVESTIGATIONS of the relation of renal glutaminase activity to ammonia excretion during metabolic acidosis1,2 and potassium deficiency3 indicate that glutaminase is involved in the regulation of urinary ammonia production in the rat. The increase in renal glutamine transaminase-ω-amidase (GTA) activity following administration of ammonium chloride to rats for 2–3 weeks4 suggests that this enzyme system, which catalyses the transamination-deamination of glutamine5, might also play a part in the regulation of urinary ammonia production. Evidence is given here which supports this hypothesis.

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GOLDSTEIN, L. Relation of Renal Glutamine Transam inase-ω-Amidase Activity to Ammonia Excretion in the Rat. Nature 201, 1229–1230 (1964). https://doi.org/10.1038/2011229a0

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