Chromosome breakage after G2 checkpoint release
نویسندگان
چکیده
منابع مشابه
Chromosome breakage after G2 checkpoint release
DNA double-strand break (DSB) repair and checkpoint control represent distinct mechanisms to reduce chromosomal instability. Ataxia telangiectasia (A-T) cells have checkpoint arrest and DSB repair defects. We examine the efficiency and interplay of ATM's G2 checkpoint and repair functions. Artemis cells manifest a repair defect identical and epistatic to A-T but show proficient checkpoint respo...
متن کاملChromosome breakage following G2 checkpoint release
DNA double-strand break (DSB) repair and checkpoint control represent distinct mechanisms to reduce chromosomal instability. Ataxia telangiectasia (AT) cells have checkpoint arrest and DSB repair defects. Here, we examine the efficiency and interplay of ATM's G2 checkpoint and repair functions. Artemis cells manifest an identical and epistatic repair defect to AT but show proficient checkpoint ...
متن کاملNondisjunction of a Single Chromosome Leads to Breakage and Activation of DNA Damage Checkpoint in G2
The resolution of chromosomes during anaphase is a key step in mitosis. Failure to disjoin chromatids compromises the fidelity of chromosome inheritance and generates aneuploidy and chromosome rearrangements, conditions linked to cancer development. Inactivation of topoisomerase II, condensin, or separase leads to gross chromosome nondisjunction. However, the fate of cells when one or a few chr...
متن کاملChromosome breakage and repair.
FROM time to time one of my colleagues working at a medical school commiserates with me because I spend 40 hr a year lecturing to undergraduates. I always reply that teaching has compelled me to learn a lot of material that I would not have known about had I taught only my specialized subject. These forays into the ‘‘beyond’’ were instrumental in moving my research in new directions. Three arti...
متن کاملChromosome breakage and ultrasound.
Human lymphocyte cultures were examined for chromosome damage after exposure to ultrasound. Control and treated slides were scored "blind" and showed no evidence of damage due to ultrasound. Neither was there evidence of chromosome damage in blood cultures from six infants whose mothers had ultrasound during pregnancy when compared with that from six infants whose mothers had not. Our results s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2007
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.200612047