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Meiotic recombination and chromosome segregation require the formation of double-strand breaks (DSBs) in paired chromosome homologs. De plus, nous expédions SPO11 Protéines (5) et et beaucoup plus de produits pour cette protéine.
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Human Polyclonal SPO11 Primary Antibody pour WB - ABIN4891847
Suberbielle, Sanchez, Kravitz, Wang, Ho, Eilertson, Devidze, Kreitzer, Mucke: Physiologic brain activity causes DNA double-strand breaks in neurons, with exacerbation by amyloid-β. dans Nature neuroscience 2013
SPO11 gene C631T polymorphism may contribute as a genetic factor susceptible to cause male infertility in Chinese.
Data suggest that the combined genotypes of glutathionine S-transferase GSTM1 (-/-), GSTT1 (+/+), GSTP1 (AA) and meiotic recombination protein SPO11 (CT) may be associated with idiopathic male infertility in ethnic Han Chinese.
Polymorphisms within the SPO11 gene are linked to the susceptibility of azoospermia and oligozoospermia male infertility.
SPO11 might has an effect on premorbid functioning, which increase susceptibility for idiopathic male reproduction
Mutations in the human SPO11 gene are not common causes of infertility in man
Data show that there is no association between SPO11 gene mutation and premature ovarian failure.
These data suggest that Tex19.1 and Ubr2 (Montrer UBR2 Anticorps) are required for mouse spermatocytes to accumulate sufficient Spo11-dependent recombination to ensure that the homology search is consistently successful, and reveal a hitherto unknown genetic pathway promoting meiotic recombination in mammals.
If SPO11 expression is reduced and DNA double-strand breaks at zygonema are decreased (approximately 40 % below wild-type level), meiotic chromosome pairing is normal.
suppression of genetic recombination in the pseudoautosomal region and at subtelomeres in mice with a hypomorphic Spo11 allele
our results indicate that in addition to asynapsis, persistent SPO11-induced DSBs are important for the initiation of MSCI and MSUC, and that SPO11-independent DNA repair foci contribute to the MSUC response in oocytes.
Mice with greater or fewer copies of the Spo11 gene--with correspondingly greater or fewer numbers of early recombination foci--exhibited relatively invariant crossover numbers.
chromosome synapsis defects and sexually dimorphic meiotic progression in Spo11 deficient mice
Spo11 is not required for Ig hypermutation or class switch recombination
In Spo11 -/- cells, SMC1 (Montrer SMC1A Anticorps) localization on meiotic chromosomes is mainly associated with homologous or non-homologous synapsed regions, whereas SMC3 (Montrer SMC3 Anticorps) localized throughout the chromosomes. Both localized along chromosome cores of Spo11 null spermatocytes.
meiotic double-stranded breaks are processed by endonucleolytic cleavage that releases Spo11 attached to an oligonucleotide with a free 3'-OH
The presence of these L-foci in Spo11(-/-) spermatocytes raises the interesting possibility of yet uncharacterized alterations in DNA or chromosome structure in Spo11(-/-) cells.
Meiotic recombination and chromosome segregation require the formation of double-strand breaks (DSBs) in paired chromosome homologs. During meiosis in yeast, a meiotic recombination protein is covalently-linked to the 5' end of DSBs and is essential for the formation of DSBs. The protein encoded by this gene is similar in sequence and conserved features to the yeast meiotic recombination protein. The encoded protein belongs to the TOP6A protein family. Several transcript variants encoding different isoforms have been found for this gene, but the full-length nature of only two of them have been described.
SPO11 meiotic protein covalently bound to DSB homolog
, cancer/testis antigen 35
, meiotic recombination protein SPO11
, spermatogenesis associated 43
, sporulation protein, meiosis-specific, SPO11 homolog
, sporulation protein, meiosis-specific, SPO11
, sporulation protein, meiosis-specific, SPO11 homolog (S. cervisiae)