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Gene Review

UTR1  -  Utr1p

Saccharomyces cerevisiae S288c

Synonyms: J1655, NAD(+) kinase, YJR049C
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Disease relevance of UTR1


High impact information on UTR1

  • This screen yielded a number of genes not previously implicated in salt stress, including ALD6, which encodes an NADP(+)-dependent aldehyde dehydrogenase, and UTR1, which encodes an NAD+ kinase [2].
  • We have isolated and mutagenized a DNA fragment from Saccharomyces cerevisiae that specifies mRNA 3' end formation for the convergently transcribed CYC1 and UTR1 genes [3].
  • Purified Yef1 has similar nucleoside triphosphate specificity but substantially lower specific activity and less discrimination in favor of NAD versus NADH phosphorylation than Utr1 [4].
  • The defect in fermentative growth of utr1 mutants renders POS5 but not POS5-dependent mitochondrial genome maintenance essential because rho-utr1 derivatives are viable [4].
  • A third component, the product of the UTR1 gene, was shown to act synergistically with Fre1p to increase the cell ferrireductase activity [5].

Biological context of UTR1

  • The contributions of the other two enzymes were also demonstrated; however, these were observed only in the absence of the critical contributor, which was supported by complementation for some pos5 phenotypes by the overexpression of UTR1 and YEF1 [6].

Associations of UTR1 with chemical compounds

  • Three NAD kinase homologs, encoded by UTR1, POS5 and YEF1 genes, are found in the yeast Saccharomyces cerevisiae and proven to be important sources of NADPH for the cell [7].
  • UTR1p specifically phosphorylated NAD in the presence of ATP, dATP, or CTP as phosphoryl donors, and was most active at pH 8.0, 30 degrees C. Km values of UTR1p for NAD and ATP were determined to be 0.50 mM and 0.60 mM, respectively [1].

Analytical, diagnostic and therapeutic context of UTR1


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