The base, where about 30 police officers are stationed, acts as a checkpoint for traffic entering or leaving the city.
They soon discover that Warwick and his soldiers have fled even farther west, to act as a checkpoint at Alaska, where they notice the Circle's new ally, the Russians.
Another example is that Stn1, when overproduced, acts as a checkpoint inhibitor (Gasparyan et al., 2009).
The p53 protein acts as a checkpoint in the cell cycle, either preventing or initiating programmed cell death.
One of the main, well-defined targets of HPV E6 is the tumor suppressor protein p53 which acts as a checkpoint to maintain cell homeostasis.
P53 is a tumour suppressor protein that acts as a checkpoint in the cell cycle, either preventing or initiating programmed cell death (Buckbinder et al, 1995).
Freedman et al.'s findings reveal that LynA acts as a checkpoint that primes macrophages to respond more aggressively when the body is under attack.
The TP53 protein acts as a checkpoint control for recognising damaged DNA, allowing DNA repair and delayed entrance into the DNA-replication phase of the cell cycle.
This finding suggested that Pkc1p might act as a checkpoint kinase under conditions of replicative stress where progression to G2 phase is inhibited.
Additionally, any interruption in processing can be circumvented by re-running the make command, which will act as a checkpoint by restarting from the last valid position.
