HP1 alpha: Proteins and Enzymes

Heterochromatin protein-1 (HP1) is a methyl-lysine binding adapter protein that is involved in a variety important functions in the cell nucleus. Localized at heterochromatin sites, HP1 is responsible for gene repression by heterochromatin formation, transcriptional activation, regulation of binding of cohesion complexes to centromere, sequesteration of genes to nuclear periphery, transcriptional arrest, maintenance of heterochromatin integrity, gene repression at single nucleosome level and gene repression by heterochromatization of euchromatin.

HP1 antibodies are useful tools for research on transcription regulation and epigenetic signaling.