Chromobox Protein Homolog 1

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

**Definition:** Chromobox protein homolog 1 (185 aa, ~21 kDa) is encoded by the human CBX1 gene. This soluble, nuclear protein plays a role in epigenetic repression of chromatin and association of heterochromatin with the inner nuclear membrane.

**Synonyms:** - CBX1 - HP1 beta - HP1Hsbeta - Heterochromatin protein 1 homolog beta - Heterochromatin protein p25 - M31 - Modifier 1 protein - p25beta