Histone H3 Trimethyl Lys28

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** A post-translationally modified form of histone H3 where the lysine residue at position 28 is trimethylated. This modification is associated with formation of heterochromatin and recruitment of polycomb repressive complex 1 (PRC1).

**Synonyms:** - H3K27me3 - H3K27me3 - H3K28me3 - Histone H3 Trimethyl Lys27 - Histone H3 Trimethyl Lysine 27 - Histone H3 Trimethyl Lysine 28