We started with the already parameterized model without introducing any alterations or adjustments, except for resetting the appropriate enzyme activities, and tested how the system responded to the inhibition in comparison to the in vivo experiments [ 19].
Unlike transgenic approaches (Placantonakis et al., 2009), this system would ensure reporter expression specifically driven by the endogenous Nestin promoter and/or enhancer, and would not introduce any other genetic alterations that arise from random integration strategies.
We decided to introduce an alteration to our reporter assay in comparison with the original to make it more relevant to address the effect on ongoing translation.
Imaging analysis by electron microscopy showed that the pVII modified virions were morphologically identical to the unmodified virions (data not shown), ruling out that the pVII modification introduces any gross physical alterations of the virions as compared to their unmodified counterparts.
Various oligonucleotide-based approaches have been developed to introduce genetic alterations without leaving any traces.
Two groups reporting in this issue of Nature have now used the technique to introduce genetic alterations found in human lung tumours into the lungs of mice.
It is dangerous for companies to allow well-meaning employees to introduce quick alterations into a carefully engineered plant without some sort of a formal review.
It is dangerous to allow well-meaning employees to introduce quick alterations into a carefully engineered plant without some sort of a formal review.
A novel in vitro model of axonal injury using PC12 cells was designed to introduce traumatic alterations on neuronal processes and to identify mechanisms responsible for the formation of focal swellings by observation with phase-contrast and transmission electron microscopes.
The multiple domains of PARP-1 collapse onto damaged DNA, forming a network of interdomain contacts that introduce destabilizing alterations in the catalytic domain leading to an enhanced rate of poly(ADP-ribose) production.
As knowledge regarding precise genetic abnormalities underlying a variety of dermatological conditions continues to emerge, the ability to introduce corresponding alterations in endogenous gene loci in mice, often at a single base pair level, has become essential for detailed studies of these genetic diseases.
