Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Formyl phosphate, biosynthesis

Biosynthesis and Utilization of Acetyl Phosphate, Formyl Phosphate, and Carbamyl Phosphate and their Relations to the Urea Cycle... [Pg.151]

What are some common features in amino acid biosynthesis In the anabolism of amino acids, transamination reactions play an important role. Glutamate and glutamine are frequently the amino-group donors. The enzymes that catalyze transamination reactions frequently require pyridoxal phosphate as a coenzyme. One-carbon transfers also operate in the anabolism of amino acids. Carriers are required for the one-carbon groups transferred. Tetrahydrofolate is a carrier of methylene and formyl groups, and S-adenosylmethionine is a carrier of methyl groups. [Pg.703]

Phosphorylation at the carboxylate (ATP ADP) followed by reaction with aspartate (Asp,D) in the presence of phosphoribosylaminoimidazolesuccinocarbox-amide synthase (EC 6.S.2.6) produces the corresponding (S)-succinate derivative. This is followed by loss of fumarate (adenylosuccinate lyase, EC 4.S.2.2) to the corresponding amide (last seen in the biosynthesis of histidine (His, H) (Scheme 12.26). Then, as shown in Scheme 12.97, N-formylation (as in Scheme 12.87) on the C-5 amino group is effected with IO-CHO-H4 folate (EC 2.1.2.3) to yield the N-formyl derivative (5-formamido-l-(5 -phosphoribosyl) imidazole-4-carboxyamide). Loss of water accompanies cyclization (EC 3.5.2.10) to yield inosine 5 -phosphate (IMP). [Pg.1228]


See other pages where Formyl phosphate, biosynthesis is mentioned: [Pg.258]    [Pg.85]    [Pg.149]    [Pg.1041]    [Pg.130]    [Pg.715]    [Pg.238]    [Pg.598]    [Pg.212]    [Pg.401]    [Pg.156]   


SEARCH



Phosphates biosynthesis

© 2024 chempedia.info