MARKINGS. “The N-terminal tails of core histone proteins can be covalently modified by acetylation, methylation, phosphorylation, sumoylation, carbonylation, and glycation. The combinatorial set of modifications (histone code) plays an essential role in regulating dynamic changes in chromatin structure, ultimately influencing gene transcription in response to diverse exogenous and endogenous stimuli including stress, pathogen attack, temperature, light, and hormones.”
http://jxb.oxfordjournals.org/content/62/11/3713.full