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carbamoyl-phosphate synthase (ammonia)

Cat No.
EXWM-5785
Description
The enzyme catalyses the first committed step in the urea cycle. The reaction proceeds via three separate chemical reactions: phosphorylation of hydrogencarbonate to carboxyphosphate; a nucleophilic attack of ammonia on carboxyphosphate yielding carbamate; and the phosphorylation of carbamate forming carbamoyl phosphate. Two moles of ATP are utilized for the synthesis of one molecule of carbamyl phosphate, making the reaction essentially irreversible. The enzyme requires the allosteric activator N-acetyl-L-glutamate. cf. EC 6.3.5.5, carbamoyl-phosphate synthase (glutamine-hydrolysing).
Form
Liquid or lyophilized powder
Enzyme Commission Number
CAS No.
9026-23-7
Storage
Store it at +4 ºC for short term. For long term storage, store it at -20 ºC~-80 ºC.
Synonyms
carbon-dioxide-ammonia ligase; carbamoylphosphate synthase; carbamylphosphate synthetase; carbamoylphosphate synthase (ammonia); carbamoylphosphate synthetase; carbamylphosphate synthetase I; CPSI (gene name); carbon-dioxide:ammonia ligase (ADP-forming, carbamate-phosphorylating)
Reaction
2 ATP + NH3 + hydrogencarbonate = 2 ADP + phosphate + carbamoyl phosphate (overall reaction); (1a) ATP + hydrogencarbonate = ADP + carboxyphosphate; (1b) NH3 + carboxyphosphate = carbamate + phosphate; (1c) ATP + carbamate = ADP + carbamoyl phosphate
Notes
This item requires custom production and lead time is between 5-9 weeks. We can custom produce according to your specifications.

Our Products Cannot Be Used As Medicines Directly For Personal Use.

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