Calling meals junk meals" puts a judgement on it and there is nothing wrong with eating those foods whenever you feel you need them. The exception to the rule is the DOT1 household, members of which methylate K79 in the globular area of histone H3 and which are structurally not related to SET-domain proteins 4 - 6 Recent work suggests that SET-area-containing proteins methylate just a few proteins along with histones (see later)
