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Publication : Loss of the Suv39h histone methyltransferases impairs mammalian heterochromatin and genome stability.

First Author  Peters AH Year  2001
Journal  Cell Volume  107
Issue  3 Pages  323-37
PubMed ID  11701123 Mgi Jnum  J:72503
Mgi Id  MGI:2153154 Doi  10.1016/s0092-8674(01)00542-6
Citation  Peters AH, et al. (2001) Loss of the suv39h histone methyltransferases impairs Mammalian heterochromatin and genome stability. Cell 107(3):323-37
abstractText  Histone H3 lysine 9 methylation has been proposed to provide a major 'switch' for the functional organization of chromosomal subdomains. Here, we show that the murine Suv39h histone methyltransferases (HMTases) govern H3-K9 methylation at pericentric heterochromatin and induce a specialized histone methylation pattern that differs from the broad H3-K9 methylation present at other chromosomal regions. Suv39h-deficient mice display severely impaired viability and chromosomal instabilities that are associated with an increased tumor risk and perturbed chromosome interactions during male meiosis. These in vivo data assign a crucial role for pericentric H3-K9 methylation in protecting genome stability, and define the Suv39h HMTases as important epigenetic regulators for mammalian development.
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