Three nearly isogenic karyotypic variants of S. pastorianus Weihenstephan 34/70 revealed different diacetyl production profiles, although no differences in the DNA sequence of genes involved in the biosynthesis of this important off flavor were found.
We assumed that this difference of affinity could be due to the different enzyme constructions used as well as differences in the DNA binding assay conditions (concentration of substrate and enzyme).
This may reflect differences in the structure and coactivator requirements of the different promoters, which we find leads to measurable differences in the DNA binding or activator function of Adr1 [31].
As shown in Figure 7, no differences in the DNA methylation of RELB between the different CLL subsets were detectable, at least for this 5' region and the first exon.
Schlotterer (2000) has suggested that taxon-specific predominance of different repeat motifs could be influenced by a different base composition in the genome as well as differences in the DNA mismatch repair systems.
Differences in the DNA damage response between normal cells and cancer cells often underlie the utility of DNA damaging agents in cancer treatment.
This evidence has been subsequently confirmed on a larger scale by Krausz et al. who detected no differences in the DNA methylation status of several genes in the different sperm subpopulations of normozoospermic individuals [ 78].
Studies on tumour cells, lymphocytes and fibroblasts are rather contradictory and this may indicate that there are differences in the DNA conformation and sensitivity to radiation in cells of different origins.
There were no significant differences in the DNA fragmentation.
And though both he and Coulson jumped from Fleet Street to political PR, there are important differences in the DNA of the two men.
No differences in the DNA concentrations for Ruminococcus albus and Succinivibrio dextrinosolvens among diets were observed.
