The meiosis-specific recombinase hDmc1 forms ring structures and interacts with hRad51
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چکیده
منابع مشابه
The meiosis-specific recombinase hDmc1 forms ring structures and interacts with hRad51.
Eukaryotic cells encode two homologs of Escherichia coli RecA protein, Rad51 and Dmc1, which are required for meiotic recombination. Rad51, like E.coli RecA, forms helical nucleoprotein filaments that promote joint molecule and heteroduplex DNA formation. Electron microscopy reveals that the human meiosis-specific recombinase Dmc1 forms ring structures that bind single-stranded (ss) and double-...
متن کاملHuman Dmc1 protein binds DNA as an octameric ring.
The bacterial RecA protein has been the most intensively studied enzyme in homologous genetic recombination. The core of RecA is structurally homologous to that of the F1-ATPase and helicases. Like the F1-ATPase and ring helicases, RecA forms a hexameric ring. The human Dmc1 (hDmc1) protein, a meiosis-specific recombinase, is homologous to RecA. We show that hDmc1 forms octameric rings. Unlike ...
متن کاملp53 Protein interacts specifically with the meiosis-specific mammalian RecA-like protein DMC1 in meiosis.
The tumor suppressor protein p53 is specifically expressed during meiosis in spermatocytes. Subsets of p53 knockout mice exhibit testicular giant cell degenerative syndrome, which suggests p53 may be associated with meiotic cell cycle and/or DNA metabolism. Here, we show that p53 binds to the mouse meiosis-specific RecA-like protein Mus musculus DMC1 (MmDMC1). The C-terminal domain (amino acid ...
متن کاملInteractions between human BRCA2 protein and the meiosis-specific recombinase DMC1.
Germline mutations in BRCA2 predispose to hereditary breast cancers. BRCA2 protein regulates recombinational repair by interaction with RAD51 via a series of degenerate BRC repeat motifs encoded by exon 11 (BRCA2(996-2113)), and an unrelated C-terminal domain (BRCA2(3265-3330)). BRCA2 is also required for meiotic recombination. Here, we show that human BRCA2 binds the meiosis-specific recombina...
متن کاملp53 interacts with hRAD51 and hRAD54, and directly modulates homologous recombination.
p53 inhibits tumorigenesis through a variety of functions, including mediation of cell cycle arrest, premature senescence, and apoptosis.p53 also can associate with several DNA helicases and proteins involved in homologous recombination. In this study, we show that p53, hRAD51, and hRAD54 coimmunoprecipitated and colocalized with each other at endogenous levels in normal cells. Colocalization w...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 1999
ISSN: 0261-4189,1460-2075
DOI: 10.1093/emboj/18.22.6552