The photochemical reaction enables an otherwise inaccessible reaction pathway towards a specific product, either by dissociation, ionization or isomerisation of the precursor compound.
Recently, organocatalysis has been successfully combined with photochemical reactivity to unlock previously inaccessible reaction pathways, thereby creating new synthetic opportunities.
Analyzing the proteins of a biological system gives the opportunity to understand and reveal the intricacies of many cellular functional pathways, inaccessible through genomic or transcriptomic studies.
This is predicted to produce a highly rugged adaptive landscape, in which many adaptive pathways are inaccessible [ 27, 28].
Furthermore, we provide a substantial number of candidate genes for the investigation of developmental pathways previously inaccessible for study, yet hypothesized to play a potentially significant role in the origin and diversification of beetle horns and horned beetles, such as the notch, Wnt, and EGFR signaling pathways [ 77].
This was attributed to the fact that these native proteins were located in the mitochondria, thus being inaccessible for the cytosolic alkane pathway.
However, this simple two-step mutational pathway was apparently inaccessible without the prior evolution of one or more unknown mutations that created a potentiated genetic background (Blount et al., 2008).
Perhaps, then, it comes as no surprise that when Hurricane Sandy hit the city back in October 2012 and damaged several structures, certain pathways of travel became inaccessible and commuting between certain places became much more difficult.
On the other hand resistance may develop when genetic alterations make the targeted proteins inaccessible to drug binding, activate alternative signaling pathways or upregulate molecule expression to compensate for the inhibition.
We find that mature IL-1β can be detected within protease inaccessible membranes in cells blocked early in the autophagic pathway (e.g. ATG5 null cells and cells depleted of FIP200, both of which block at a stage prior to the lipidation of LC3).
