Change of Gene Structure and Function by Non-Homologous End-Joining, Homologous Recombination, and Transposition of DNA
نویسندگان
چکیده
منابع مشابه
Change of Gene Structure and Function by Non-Homologous End-Joining, Homologous Recombination, and Transposition of DNA
An important objective in genome research is to relate genome structure to gene function. Sequence comparisons among orthologous and paralogous genes and their allelic variants can reveal sequences of functional significance. Here, we describe a 379-kb region on chromosome 1 of maize that enables us to reconstruct chromosome breakage, transposition, non-homologous end-joining, and homologous re...
متن کاملInteractive competition between homologous recombination and non-homologous end joining.
DNA-dependent protein kinase (DNA-PK), composed of Ku70, Ku80, and the catalytic subunit (DNA-PKcs), is involved in double-strand break (DSB) repair by non-homologous end joining (NHEJ). DNA-PKcs defects confer ionizing radiation sensitivity and increase homologous recombination (HR). Increased HR is consistent with passive shunting of DSBs from NHEJ to HR. We therefore predicted that inhibitin...
متن کامل[Non-homologous DNA end joining].
DNA double strand breaks (DSB) are the most serious form of DNA damage. Repair of DSBs is important to prevent chromosomal fragmentation, translocations and deletions. Non-homologous end joining (NHEJ) is one of three major pathways for the repair of DSBs in human cells. In this process two DNA ends are joined directly, usually with no sequence homology, although in the case of same polarity of...
متن کاملModeling non-homologous end joining.
Non-homologous end joining (NHEJ) is an important DNA repair pathway for DNA double-strand breaks. Several proteins, including Ku, DNA-PKcs, Artemis, XRCC4/Ligase IV and XLF, are involved in the NHEJ for the DNA damage detection, DNA free end processing and ligation. The classical model of NHEJ is a sequential model in which DNA-PKcs is first recruited by the Ku bound DNA prior to any other rep...
متن کاملTopoisomerase II-Mediated DNA Damage Is Differently Repaired during the Cell Cycle by Non-Homologous End Joining and Homologous Recombination
Topoisomerase II (Top2) is a nuclear enzyme involved in several metabolic processes of DNA. Chemotherapy agents that poison Top2 are known to induce persistent protein-mediated DNA double strand breaks (DSB). In this report, by using knock down experiments, we demonstrated that Top2alpha was largely responsible for the induction of gammaH2AX and cytotoxicity by the Top2 poisons idarubicin and e...
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ژورنال
عنوان ژورنال: PLoS Genetics
سال: 2009
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.1000516