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BRCA1 and homologous recombination: implications from mouse embryonic development.


ABSTRACT: As an important player in DNA damage response, BRCA1 maintains genomic stability and suppresses tumorigenesis by promoting DNA double-strand break (DSB) repair through homologous recombination (HR). Since the cloning of BRCA1 gene, many Brca1 mutant alleles have been generated in mice. Mice carrying homozygous Brca1 mutant alleles are embryonic lethal, suggesting that BRCA1's functions are important for embryonic development. Studies of embryonic development in Brca1 mutant mice not only reveal the physiological significance of BRCA1's known function in HR, but also lead to the discovery of BRCA1's new function in HR: regulation of DSB repair pathway choice.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC7106644 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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BRCA1 and homologous recombination: implications from mouse embryonic development.

Liu Yidan Y   Lu Lin-Yu LY  

Cell & bioscience 20200330


As an important player in DNA damage response, BRCA1 maintains genomic stability and suppresses tumorigenesis by promoting DNA double-strand break (DSB) repair through homologous recombination (HR). Since the cloning of <i>BRCA1</i> gene, many <i>Brca1</i> mutant alleles have been generated in mice. Mice carrying homozygous <i>Brca1</i> mutant alleles are embryonic lethal, suggesting that BRCA1's functions are important for embryonic development. Studies of embryonic development in <i>Brca1</i>  ...[more]

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