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Summary of the main histone code in mammalian cells.
| Type of modification | Histone | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| H3K4 | H3K9 | H3K14 | H3K27 | H3K79 | H4K20 | H2BK5 | H3K4 + H3K27 | H3K9 + H4k20 | |
| Mono-methylation | Activation | Activation | Activation | Activation | Activation | Activation | |||
| Dimethylation | Activation | Repression | Repression | Activation | |||||
| Trimethylation | Activation | Aepression | Repression | Repression | Bivalent | Heterochromatin | |||
| Acetylation | Activation | Activation | |||||||
