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7493800 
Journal Article 
A glutamine- and N-acetyl-l-glutamate-dependent carbamyl phosphate synthetase activity in the teleost Micropterus salmoides 
Anderson, PM 
1976 
Yes 
Comparative Biochemistry and Physiology - B: Comparative Biochemistry
ISSN: 0305-0491 
54 
2 
261-263 
English 
1. 1. Livers of the teleost fish Micropterus salmoides possess carbamyl phosphate synthetase activity which utilizes l-glutamine as the nitrogen source and requires the presence of N-acetyl-l-glutamate for activity. 2. 2. The apparent Km for l-glutamine is 0·3 mM. Half-maximal activity is obtained when the concentrations of N-acetyl-l-glutamate and ATP-Mg2+ are 0·14 mM and 4 mM, respectively. 3. 3. Synthetase activity with ammonia as the source of nitrogen is less than 8% of that observed with l-glutamine. © 1975. 
carbamate kinase; glutamine; n acetylglutamic acid; fish; in vitro study; theoretical study; Adenosine Triphosphate; Animal; Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing); Enzyme Activation; Fishes; Glutamates; Glutamine; Kinetics; Liver; Magnesium; Phosphotransferases; Structure-Activity Relationship; Support, U.S. Gov't, P.H.S. 
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