The phrase "a checkpoint that involves" is correct and usable in written English.
You can use it when describing a specific stage or point in a process that requires certain actions or considerations.
Example: "During the project, we will reach a checkpoint that involves reviewing our progress and making necessary adjustments."
Alternatives: "a stage that includes" or "a phase that entails".
It will be important to clarify the relationship between the decatenation checkpoint (which blocks entry into mitosis) and the metaphase arrest (during mitosis), and to determine whether the metaphase arrest is a bona fide checkpoint that involves active signalling or whether it reflects a physical obstacle to chromatid segregation that is imposed by chromosome entanglements (Clarke et al, 1993).
In conclusion, our study highlights a novel role for p53 in the activation of a p53-dependent S-phase replication checkpoint that involves CHK-1 and functions to protect the integrity of DNA.
P16INK4 a is part of the G1 S cell cycle checkpoint mechanism that involves the retinoblastoma-susceptibility tumour suppressor protein (pRB).
Our findings indicate that RITA activates a p53-dependent checkpoint that may involve CHK-1.
For the week beginning Sept. 7, for example, 11 passengers were arrested "after investigations of suspicious behavior or fraudulent travel documents," 40 firearms were found at checkpoints, 6 "artfully concealed prohibited items" were discovered, and there were 30 incidents that involved a "checkpoint closure, terminal evacuation or sterile area breach".
The police commissioner, Raymond W. Kelly, had outlined a plan for securing the trial that involved transforming a section of Lower Manhattan into an armed camp, blanketed with police checkpoints, vehicle searches, rooftop snipers and canine patrols.
Palestinians, like other employees, are offered a bus service that brings them to the factory but that will now become a two-hour journey each way that involves crossing an Israeli checkpoint, where workers must show permits and be screened for security checks.
It is well established that cell cycle progression is a tightly ordered and regulated process that involves multiple cellular checkpoints.
The Transportation Security Administration told ABC News that across the country since Dec. 14, there were "37 incidents at airports that involved a checkpoint closure, terminal evacuation or a sterile area breach".
Now scientists have deciphered one of the signals involved in sprouting, and they argue that it's part of a developmental checkpoint that allows plants to put the brakes on germination for a while, if need be.
