Methylation been found on a range of lysine residues in varied histones: K4 (using the one-letter amino-acid code for lysine), K9, solicitor K27, K36 and Solicitor Article K79 in histone H3, K20 in histone H4, K59 in the globular area of histone H4 2 and K26 of histone H1B 3 Several proteins chargeable for lawyer the methylation of particular residues have been characterised, and all but considered one of these accommodates a SET area