Dihidroorotat dehidrogenaza (fumarat)

(Preusmjereno sa stranice DHODaza)

Dihidroorotat dehidrogenaza (fumarat) (EC 1.3.98.1, DHOdehaza (nespecifična), dihidroorotat dehidrogenaza (nespecifična), dihidoorotna kiselina dehidrogenaza (nespecifična), DHOD (nespecifična), DHODaza (nespecifična), dihidroorotatna oksidaza, pyr4 (gen)) je enzim sa sistematskim imenom (S)-dihidroorotat:fumarat oksidoreduktaza.[1][2][3][4][5][6] Ovaj enzim katalizuje sledeću hemijsku reakciju

Dihidroorotat dehidrogenaza (fumarat)
Identifikatori
EC broj 1.3.98.1
CAS broj 2603876
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB RCSB PDB PDBe PDBj PDBsum
(S)-dihidroorotat + fumarat orotat + sukcinat

Ovaj enzim vezuje FMN. Reakcija, koja se odvija u citozolu, je jedina redoks reakcija u de novo biosinteza pirimidinskih nukleotida.

Reference uredi

  1. Björnberg, O., Rowland, P., Larsen, S. and Jensen, K.F. (1997). „Active site of dihydroorotate dehydrogenase A from Lactococcus lactis' investigated by chemical modification and mutagenesis”. Biochemistry 36: 16197-16205. PMID 9405053. 
  2. Rowland, P., Björnberg, O., Nielsen, F.S., Jensen, K.F. and Larsen, S. (1998). „The crystal structure of Lactococcus lactis' dihydroorotate dehydrogenase A complexed with the enzyme reaction product throws light on its enzymatic function”. Protein Sci. 7: 1269-1279. PMID 9655329. 
  3. Nørager, S., Arent, S., Björnberg, O., Ottosen, M., Lo Leggio, L., Jensen, K.F. and Larsen, S. (2003). „Lactococcus lactis' dihydroorotate dehydrogenase A mutants reveal important facets of the enzymatic function”. J. Biol. Chem. 278: 28812-28822. PMID 12732650. 
  4. Zameitat, E., Pierik, A.J., Zocher, K. and Löffler, M. (2007). „Dihydroorotate dehydrogenase from Saccharomyces cerevisiae: spectroscopic investigations with the recombinant enzyme throw light on catalytic properties and metabolism of fumarate analogues”. FEMS Yeast Res. 7: 897-904. PMID 17617217. 
  5. Inaoka, D.K., Sakamoto, K., Shimizu, H., Shiba, T., Kurisu, G., Nara, T., Aoki, T., Kita, K. and Harada, S. (2008). „Structures of Trypanosoma cruzi dihydroorotate dehydrogenase complexed with substrates and products: atomic resolution insights into mechanisms of dihydroorotate oxidation and fumarate reduction”. Biochemistry 47: 10881-10891. PMID 18808149. 
  6. Cheleski, J., Wiggers, H.J., Citadini, A.P., da Costa Filho, A.J., Nonato, M.C. and Montanari, C.A. (2010). „Kinetic mechanism and catalysis of Trypanosoma cruzi dihydroorotate dehydrogenase enzyme evaluated by isothermal titration calorimetry”. Anal. Biochem. 399: 13-22. PMID 19932077. 

Literatura uredi

Spoljašnje veze uredi