Ribonucleoside-triphosphate reductase

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Ribonucleoside-triphosphate reductase
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Ribonucleoside-triphosphate reductase dimer, Thermotoga maritima
Identifiers
EC no. 1.17.4.2
CAS no. 9068-66-0
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Ribonucleoside-triphosphate reductase (EC 1.17.4.2, ribonucleotide reductase , 2'-deoxyribonucleoside-triphosphate:oxidized-thioredoxin 2'-oxidoreductase) is an enzyme with systematic name 2'-deoxyribonucleoside-triphosphate:thioredoxin-disulfide 2'-oxidoreductase. [1] [2] [3] This enzyme catalyses the following chemical reaction

2'-deoxyribonucleoside triphosphate + thioredoxin disulfide + H2O ribonucleoside triphosphate + thioredoxin

Ribonucleoside-triphosphate reductase requires a cobamide coenzyme and ATP.

References

  1. Blakley RL (May 1965). "Cobamides and ribonucleotide reduction. I. Cobamide stimulation of ribonucleotide reduction in extracts of Lactobacillus leichmannii". The Journal of Biological Chemistry. 240 (5): 2173–80. doi: 10.1016/S0021-9258(18)97442-9 . PMID   14299643.
  2. Goulian M, Beck WS (September 1966). "Purification and properties of cobamide-dependent ribonucleotide reductase from Lactobacillus leichmannii". The Journal of Biological Chemistry. 241 (18): 4233–42. doi: 10.1016/S0021-9258(18)99774-7 . PMID   5924645.
  3. Lammers, M.; Follmann, H. (1983). "The ribonucleotide reductases - a unique group of metalloenzymes essential for cell-proliferation". Struct. Bonding. Structure and Bonding. 54: 27–91. doi:10.1007/bfb0111318. ISBN   978-3-540-12542-6.