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proteins. Page last changed on 19 Dec 2016.
Suppressor of variegation 4-20 homolog 2
SUV420H2 and the related enzyme SUV420H1 (MIM 610881) function as histone methyltransferases that specifically trimethylate nucleosomal histone H4 (see MIM 602822) on lysine-20 (K20) (Schotta et al., 2004 [PubMed 15145825]).[supplied by OMIM, Dec 2009] (from
Trievel et al., Ann Arbor, United States. In Biochim Biophys Acta, 2014
This review explores recent progress in elucidating the molecular basis of these specificities, highlighting structural and functional studies of the methyltransferases SUV4-20H1 (KMT5B), SUV4-20H2 (KMT5C), and ATXR5, and the demethylases UTX (KDM6A), JMJD3 (KDM6B), and JMJD2D (KDM4D).
Grummt et al., Heidelberg, Germany. In Mol Cell, 2014
In contrast to pericentric or telomeric regions, recruitment of the H4K20 methyltransferase Suv4-20h2 to rRNA genes and IAP elements requires neither trimethylation of H3K9 nor interaction with HP1 proteins but depends on long noncoding RNAs (lncRNAs) that interact with Suv4-20h2.
Abrogation of Suv4-20h enzymes and loss of heterochromatic mark H4K20me3 at telomeric heterochromatin facilitates telomere reprogramming and provides an increased tumorigenic potential to induced pluripotent stem cells.
Blasco et al., Madrid, Spain. In Nat Cell Biol, 2005
Indeed, we show a direct interaction between the RB1 proteins and the H4K20 tri-methylating enzymes Suv4-20h1 and Suv4-20h2, indicating that the RB1 family has a role in controlling H4K20 tri-methylation by these histone methyltransferases.