Words similar to dinucleoside
Example sentences for: dinucleoside
How can you use “dinucleoside” in a sentence? Here are some example sentences to help you improve your vocabulary:
To determine whether a multicopy lysyl tRNA synthetase plasmid affected accumulation of dinucleoside polyphosphates, we transformed HNT2 ADE2 strain BY71-16d and hnt2ΔADE2 strain BY71-6c with control plasmid pRS423 and with plasmid pM1.
An earlier report demonstrated that disruption of HNT2 was tolerated by haploid yeast strains without an effect on growth and that ApppN and AppppN accumulate 30 and 3-fold, respectively on account of the hnt2 deletion [ 13 ] . Because those data were obtained by random spore analysis, we considered it important to test whether elevated dinucleoside polyphosphate levels co-segregate with hnt2 disruption in all tetrads examined and whether any other commonly used genetic markers affect dinucleoside polyphosphate levels.
The high levels of ApppN (~100 μM) and AppppN (~10 μM) and the fact that Hnt2-containing samples continue to reduce the rate of increase in dinucleoside polyphosphates without reducing their concentrations demonstrate that heat shock induces dinucleoside polyphosphate synthesis and that Hnt2 is saturated under such conditions.
The human FHIT gene, located at the chromosome 3 fragile site FRA3B, is inactivated early in the development of many tumors [ 1 ] . Murine Fhit is also located at a fragile site [ 2 3 ] and mice heterozygous for disruption of Fhit , given low intragastric doses of the mutagen N-nitrosomethylbenzylamine, develop stomach and sebaceous tumors [ 4 ] that can be prevented by viral Fhit expression [ 5 ] . Fhit, a dimer of 147 amino acid subunits, is a member of the histidine triad (HIT) superfamily of nucleotide hydrolases and transferases [ 6 7 ] . Members of the Hint branch of the HIT superfamily are found in all forms of life [ 8 ] . The S. cerevisiae Hint homolog, Hnt1, and rabbit Hint possess adenosine monophosphoramidase activity that functions in yeast to positively regulate function of Kin28, Ccl1 and Tfb3, which constitute the kinase component of general transcription factor TFIIH [ 9 ] . A new Hint related protein, Aprataxin, is mutated in individuals with ataxia with oculomotor apraxia [ 10 11 ] and has a yeast homolog termed Hnt3 [ 9 ] . Members of the Fhit branch of the HIT superfamily have been found in fungi [ 12 13 ] , animals [ 2 14 15 ] and plants [ 7 ] and hydrolyze diadenosine tetraphosphate, diadenosine triphosphate and other 5'-5"'-dinucleoside polyphosphates.
While cells without a functional HNT2 gene accumulate dinucleoside polyphosphates in excess of 10 μM in a variety of nonstressed and stressed conditions, 46°C heat shock was the only condition that produced dinucleoside polyphosphate accumulation in excess of 10 μM in cells containing a functional HNT2 gene.
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