The product is prepared by immunizing rabbit with the synthetic peptide CEDAENKEKETAKS corresponding to the amino acid sequence 179-191 of human HP1alpha and purified by affinity purification with the peptide. The antiserum was prepared by the direction of Prof. T. Haraguchi.
Lomberk, Wallrath, Urrutia: "The Heterochromatin Protein 1 family." in: Genome biology, Vol. 7, Issue 7, pp. 228, (2007) (PubMed).
Wang, Koyama, Nishida, Haraguchi, Reith, Tsukamoto: "The assembly and maintenance of heterochromatin initiated by transgene repeats are independent of the RNA interference pathway in mammalian cells." in: Molecular and cellular biology, Vol. 26, Issue 11, pp. 4028-40, (2006) (PubMed).
Kametaka, Takagi, Hayakawa, Haraguchi, Hiraoka, Yoneda: "Interaction of the chromatin compaction-inducing domain (LR domain) of Ki-67 antigen with HP1 proteins." in: Genes to cells : devoted to molecular & cellular mechanisms, Vol. 7, Issue 12, pp. 1231-42, (2002) (PubMed).
Heterochromatin protein 1 (HP1) is a major component of heterochromatin and plays a role in assembly of various proteins on chromatin and gene silencing. The HP1 family is evolutionally conserved, with members in fungi, plants and animals but not prokaryotes, and there are multiple members within the same species. The HP1 family proteins are encoded by a class of genes known as the chromobox (CBX) genes. In humans, HP1alpha is encoded by the Chromobox homolog 5 (CBX5) gene located on chromosome 12q13.13. HP1alpha has been observed to interact directly or indirectly with several non-histone proteins with a wide variety of functions.