Histone H3 Methyl Lys4

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

**Definition:** A form of histone H3 where the lysine residue at position 4 has been post-translationally modified with a single methyl group. This modification may be a marker for transcriptionally active genes.

**Synonyms:** - H3K4me1 - H3K4me1 - Histone H3 Methyl Lysine 4 - Histone H3 Methyl Lysine 5