The Enzyme Database

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Accepted name: tRNA-dihydrouridine20 synthase [NAD(P)+]
Reaction: 5,6-dihydrouracil20 in tRNA + NAD(P)+ = uracil20 in tRNA + NAD(P)H + H+
Other name(s): Dus2p; tRNA-dihydrouridine synthase 2
Systematic name: tRNA-5,6-dihydrouracil20:NAD(P)+ oxidoreductase
Comments: A flavoenzyme [3]. The enzyme specifically modifies uracil20 in tRNA.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Xing, F., Hiley, S.L., Hughes, T.R. and Phizicky, E.M. The specificities of four yeast dihydrouridine synthases for cytoplasmic tRNAs. J. Biol. Chem. 279 (2004) 17850–17860. [DOI] [PMID: 14970222]
2.  Xing, F., Martzen, M.R. and Phizicky, E.M. A conserved family of Saccharomyces cerevisiae synthases effects dihydrouridine modification of tRNA. RNA 8 (2002) 370–381. [PMID: 12003496]
3.  Rider, L.W., Ottosen, M.B., Gattis, S.G. and Palfey, B.A. Mechanism of dihydrouridine synthase 2 from yeast and the importance of modifications for efficient tRNA reduction. J. Biol. Chem. 284 (2009) 10324–10333. [DOI] [PMID: 19139092]
4.  Kato, T., Daigo, Y., Hayama, S., Ishikawa, N., Yamabuki, T., Ito, T., Miyamoto, M., Kondo, S. and Nakamura, Y. A novel human tRNA-dihydrouridine synthase involved in pulmonary carcinogenesis. Cancer Res. 65 (2005) 5638–5646. [DOI] [PMID: 15994936]
[EC created 2011]

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