bloglines.comThese tails are topic to several publish-translational covalent modifications, including acetylation, phosphorylation, ubiquitination, sumoylation and methylation (reviewed in 1 ). Methylation been discovered on a range of lysine residues in varied histones: K4 (utilizing the one-letter amino-acid code for lysine), K9, K27, K36 and K79 in histone H3, K20 in histone H4, K59 within the globular area of histone H4 2 and K26 of histone H1B 3 A number of proteins chargeable for the methylation of particular residues have been characterized, and all however one of these accommodates a SET area