SET domain (including pre-SET and post-SET domains) found in of Schizosaccharomyces pombe H3K9 methyltransferase Clr4, and similar proteins
This subfamily contains fission yeast Schizosaccharomyces pombe H3K9 methyltransferase Clr4 (also known as Suv39h), the sole homolog of the mammalian SUV39H1 and SUV39H2 enzymes, that has a critical role in preventing aberrant heterochromatin formation. It is known to di- and tri-methylate Lys-9 of histone H3, a central heterochromatic histone modification, with its specificity profile most similar to that of the human SUV39H2 homolog.