checkpoint

n.

检查站，车站的行李房；

复数：checkpoints

1. You should pass through the red checkpoint.
   你应该通过那个红色检查站。
2. An Arab was interviewed at a U.S checkpoint.
   一个阿拉伯人在检查站接受检查。

The spindle-assembly checkpoint in space and time.
A DNA damage checkpoint response in telomere-initiated senescence.
Chk1 and Chk2 kinases in checkpoint control and cancer
Control of apoptosis and mitotic spindle checkpoint by survivin.
Activation of the DNA damage checkpoint and genomic instability in human precancerous lesions
Mitotic and G$_2$ Checkpoint Control: Regulation of 14-3-3 Protein Binding by Phosphorylation of Cdc25C on Serine-216
Conservation of the Chk1 checkpoint pathway in mammals: linkage of DNA damage to Cdk regulation through Cdc25.
Musacchio A, Salmon ED.. The spindle-assembly checkpoint in space and time. Nat Rev Mol Cell Biol 8: 379-393
Mice Lacking p21 undergo normal development, but are defective in G1 checkpoint control
Chk1 is an essential kinase that is regulated by Atr and required for the G(2)/M DNA damage checkpoint