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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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CENP-B is not critical for meiotic chromosome segregation in male mice.

Centromere protein B (CENP-B) is a constitutive protein that binds to a highly conserved 17bp motif located at most mammalian centromeres. To determine whether disruption of this gene affects chromosome segregation in male germ cells, we evaluated the frequencies of disomic and diploid sperm in CENP-B heterozygous and homozygous null mice using the mouse epididymal sperm aneuploidy (m-ESA) assay, a multicolor FISH method with probes for chromosomes X, Y and 8. The specificity and sensitivity of the m-ESA assay was demonstrated using Robertsonian (2.8) translocation heterozygotes as positive controls for sperm aneuploidy. Our results show that the frequencies of disomic and diploid sperm did not differ significantly between CENP-B heterozygous and homozygous null mice (P> or = 0.5) or from 129/Swiss isogenic mice (P> or = 0.5) and B6C3F1 mice (P> or = 0.2). These findings indicate that CENP-B does not have an essential role during chromosome segregation in male meiosis.[1]

References

  1. CENP-B is not critical for meiotic chromosome segregation in male mice. Tomascik-Cheeseman, L., Marchetti, F., Lowe, X., Shamanski, F.L., Nath, J., Pedersen, R.A., Wyrobek, A.J. Mutat. Res. (2002) [Pubmed]
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