Literature summary for 2.1.3.3 extracted from

Laberge, T.; Walsh, P.J.; McDonald, M.D.
Effects of crowding on ornithine-urea cycle enzyme mRNA expression and activity in gulf toadfish (Opsanus beta) (2009), J. Exp. Biol., 212, 2394-2402.

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Activating Compound

Activating Compound	Comment	Organism	Structure
additional information	elevation in enzyme activity with increased duration of crowding is observed for all four ornithine-urea cycle enzymes examined, i.e. carbamoyl phosphate synthetase, ornithine carbamoyl transferase, argininosuccinate synthetase, argininosuccinate lyase, and arginase. By contrast, mRNA expression is variable for the ornithine-urea cycle enzymes. Results suggest that the activities of ornithine-urea cycle enzymes are better predictors for urea production than ornithine-urea cycle enzyme mRNA expression levels	Opsanus beta

Organism

Organism	UniProt	Comment	Textmining
Opsanus beta	-	-	-

Expression

Organism	Comment	Expression
Opsanus beta	elevation in enzyme activity with increased duration of crowding is observed for all four ornithine-urea cycle enzymes examined, i.e. liver glutamine synthetase, carbamoyl phosphate synthetase III, ornithine carbamoyl transferase and arginase. By contrast, mRNA expression is variable for the ornithine-urea cycle enzymes. Results suggest that the activities of ornithine-urea cycle enzymes are better predictors for urea production than ornithine-urea cycle enzyme mRNA expression levels	additional information

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Release 2023.1 (January 2023)