It is well known that histone acetylation is associated with a more 'open' configuration of DNA, because histone acetylation imparts a negative charge that causes the charge repulsion of negatively charged DNA.
Under environmentally relevant conditions, the ubiquitous fulvic acids are likely to be responsible for coating and imparting a negative charge to colloids.
It is interesting to note that the PEG, despite being of large molecular mass compared to EtNBS, did not seem to impart a negative effect on the reactive oxygen yield of the construct.
The results suggest that the conserved, charged residues at the g positions in the GCN4 leucine zipper can impart a negative design element to disfavor thermodynamically more stable, antiparallel tetramers.
Fluctuations in blood pressure in the setting of acute ischemic stroke appear to impart a negative impact on stroke severity, functional outcome and death at 90 days.
The citrate anions, furnished by sodium citrate, engulf the colloidal gold particles and impart a negative charge to these, as is shown in Fig. 4.
Collectively, this information suggests that obesity, particularly abdominal adiposity, imparts a negative effect on renal disease in the older population.
By loading a sulfate molecule on the GPA backbone, the sulfotransferases impart a negative charge to the molecule.
One theoretical explanation for the relatively poor performance of Brassica rapa (weed) × Brassica napus (crop) transgenic hybrids suggests that hybridization imparts a negative genetic load.
Flagellins of P. carbinolicus are likely to be glycosylated to impart a negative charge by enzymes encoded among the flagellar biogenesis genes.
