flavin biosynthesis II (archaea)
Mashhadi Z, Zhang H, Xu H, White RH. Identification and characterization of an archaeon-specific riboflavin kinase. J Bacteriol. 2008 Apr;190(7):2615–8. PMID: 18245297; PMCID: PMC2293203.; Chatwell L, Krojer T, Fidler A, Römisch W, Eisenreich W, Bacher A, Huber R, Fischer M. Biosynthesis of riboflavin: structure and properties of 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate reductase of Methanocaldococcus jannaschii. J Mol Biol. 2006 Jun 23;359(5):1334–51. doi: 10.1016/j.jmb.2006.04.045. PMID: 16730025.; Graupner M, Xu H, White RH. The Pyrimidine Nucleotide Reductase Step in Riboflavin and F 420 Biosynthesis in Archaea Proceeds by the Eukaryotic Route to Riboflavin. J Bacteriol. 2002 Apr;184(7):1952–7. doi: 10.1128/jb.184.7.1952-1957.2002.
Metabolites
Enzyme
| EC Number | name | full name | note |
|---|---|---|---|
| 1.1.1.302 | 2,5-diamino-6-(ribosylamino)-4(3H)-pyrimidinone 5'-phosphate reductase | 2,5-diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one:NAD(P)+ oxidoreductase | |
| 2.5.1.78 | 6,7-dimethyl-8-ribityllumazine synthase | 5-amino-6-(D-ribitylamino)uracil butanedionetransferase | |
| 2.5.1.9 | riboflavin synthase | 6,7-dimethyl-8-(1-D-ribityl)lumazine:6,7-dimethyl-8-(1-D-ribityl)lumazine 2,3-butanediyltransferase | |
| 2.7.1.161 | CTP-dependent riboflavin kinase | CTP:riboflavin 5′-phosphotransferase | |
| 2.7.7.2 | FAD synthase | ATP:FMN adenylyltransferase | |
| 3.5.1.102 | 2-amino-5-formylamino-6-ribosylaminopyrimidin-4(3H)-one 5'-monophosphate deformylase | 2-amino-5-formylamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one amidohydrolase | |
| 3.5.4.29 | GTP cyclohydrolase IIa | GTP 8,9-hydrolase (phosphate-forming) | |
| 4.1.99.12 | 3,4-dihydroxy-2-butanone-4-phosphate synthase | D-ribulose 5-phosphate formate-lyase (L-3,4-dihydroxybutan-2-one 4-phosphate-forming) |
Proteins
| Protein ID | name | full name |
|---|---|---|
| Q57580 | arfB | 2-amino-5-formylamino-6-ribosylaminopyrimidin-4(3H)-one 5'-monophosphate deformylase |
| Q57609 | gch3 | GTP cyclohydrolase III |
| Q57751 | ribH | 6,7-dimethyl-8-ribityllumazine synthase |
| Q58085 | arfC | 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate reductase |
| Q58579 | ribL | FAD synthase |
| Q58584 | ribC | Riboflavin synthase |
| Q60364 | ribB | 3,4-dihydroxy-2-butanone 4-phosphate synthase |
| Q60365 | ribK | Riboflavin kinase |