Pirimidina-deossinucleoside 2'-diossigenasi

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pirimidina-deossinucleoside 2'-diossigenasi
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Numero EC1.14.11.3
ClasseOssidoreduttasi
Nome sistematico
2′-deossiuridina,2-ossoglutarato:ossigeno ossidoreduttasi (2′-idrossilante)
Altri nomi
deossiuridina 2′-diossigenasi; deossiuridina 2′-idrossilasi; pirimidina deossiribonucleoside 2′-idrossilasi; timidina 2′-diossigenasi; timidina 2′-idrossilasi; timidina 2-ossoglutarato diossigenasi; timidina diossigenasi
Banche datiBRENDA, EXPASY, GTD, PDB (RCSB PDB PDBe PDBj PDBsum)
Fonte: IUBMB
Modifica dati su Wikidata · Manuale

La pirimidina-deossinucleoside 2'-diossigenasi è un enzima appartenente alla classe delle ossidoreduttasi, che catalizza la seguente reazione:

2′-deossiuridina + 2-ossoglutarato + O2 ⇄ uridina + succinato + CO2

L'enzima richiede Fe(II) ed ascorbato e catalizza una reazione molto simile a quella della pirimidina-deossinucleoside 1'-diossigenasi (numero EC 1.14.11.10[1]). Agisce anche sulla timidina.

Note

  1. ^ (EN) 1.14.11.10, in ExplorEnz — The Enzyme Database, IUBMB.

Bibliografia

  • Bankel, L., Lindstedt, G. and Lindstedt, S., Thymidine 2′-hydroxylation in Neurospora crassa, in J. Biol. Chem., vol. 247, 1972, pp. 6128–6134, Entrez PubMed 4265566.
  • Stubbe, J., Identification of two α-ketoglutarate-dependent dioxygenases in extracts of Rhodotorula glutinis catalyzing deoxyuridine hydroxylation, in J. Biol. Chem., vol. 260, 1985, pp. 9972–9975, Entrez PubMed 4040518.
  • Warn-Cramer, B.J., Macrander, L.A. and Abbott, M.T., Markedly different ascorbate dependencies of the sequential α-ketoglutarate dioxygenase reactions catalyzed by an essentially homogeneous thymine 7-hydroxylase from Rhodotorula glutinis, in J. Biol. Chem., vol. 258, 1983, pp. 10551–10557, Entrez PubMed 6684117.
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