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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2015 ; 112 (46): E6339-48 Nephropedia Template TP
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Genome-wide redistribution of H3K27me3 is linked to genotoxic stress and defective growth #MMPMID26578794
Basenko EY; Sasaki T; Ji L; Prybol CJ; Burckhardt RM; Schmitz RJ; Lewis ZA
Proc Natl Acad Sci U S A 2015[Nov]; 112 (46): E6339-48 PMID26578794show ga
Regulators of chromatin structure play critical roles in DNA-based processes. Lysine (K) Methyltransferase 1 (KMT1) homologs perform methylation of H3 lysine-9 and are best known for their essential role in heterochromatin formation and transcriptional silencing. Heterochromatin formation is also important for maintenance of genome stability, although the mechanisms are not well understood. We report that altered activity of Polycomb repressive complex-2 (PRC2), a histone lysine-27 methyltransferase complex, is responsible for genotoxic stress, poor growth, and defective development in KMT1-deficient mutants of Neurospora crassa. Mammalian KMT1 and PRC2 are required for development and are frequently mutated in cancer. This work provides information about the cellular consequences of KMT1 and PRC2 deficiency and provides insights into the regulatory and functional relationships of these conserved enzymes.