Fosforibozilaminoimidazolna karboksilaza
| Fosforibozilaminoimidazolna karboksilaza | |||||||||
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| Fosforibozilaminoimidazolna karboksilaza oktamer, Human | |||||||||
| Identifikatori | |||||||||
| EC broj | 4.1.1.21 | ||||||||
| CAS broj | 2605007 | ||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB | RCSB PDB PDBe PDBj PDBsum | ||||||||
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Fosforibozilaminoimidazolna karboksilaza (EC 4.1.1.21, 5-fosforibozil-5-aminoimidazolna karboksilaza, 5-amino-1-ribozilimidazol 5-fosfatna karboksilaza, AIR karboksilaza, 1-(5-fosforibozil)-5-amino-4-imidazolkarboksilatna karboksi-lijaza, ADE2, klasa II PurE, 5-amino-1-(5-fosfo-D-ribozil)imidazol-4-karboksilatna karboksi-lijaza) je enzim sa sistematskim imenom 5-amino-1-(5-fosfo-D-ribozil)imidazol-4-karboksilat karboksi-lijaza (formira 5-amino-1-(5-fosfo-D-ribozil)imidazol).[1][2][3] Ovaj enzim katalizuje sledeću hemijsku reakciju
- 5-amino-1-(5-fosfo-D-ribozil)imidazol-4-karboksilat 5-amino-1-(5-fosfo-D-ribozil)imidazol + CO2
Ova reakcija se odvija u kičmenjacima tokom purinske biosinteza.
- ↑ Lukens, L.N. and Buchanan, J.M. (1959). „Biosynthesis of purines. XXIV. The enzymatic synthesis of 5-amino-1-ribosyl-4-imidazolecarboxylic acid 5′-phosphate from 5-amino-1-ribosylimidazole 5′-phosphate and carbon dioxide”. J. Biol. Chem. 234: 1799-1805. PMID 13672967.
- ↑ Firestine, S.M., Poon, S.W., Mueller, E.J., Stubbe, J. and Davisson, V.J. (1994). „Reactions catalyzed by 5-aminoimidazole ribonucleotide carboxylases from Escherichia coli and Gallus gallus: a case for divergent catalytic mechanisms”. Biochemistry 33: 11927-11934. PMID 7918411.
- ↑ Firestine, S.M., Misialek, S., Toffaletti, D.L., Klem, T.J., Perfect, J.R. and Davisson, V.J. (1998). „Biochemical role of the Cryptococcus neoformans ADE2 protein in fungal de novo purine biosynthesis”. Arch. Biochem. Biophys. 351: 123-134. PMID 9500840.
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