Purity: > 90% by SDS - PAGE Format: Liquid. In 20mM Tris-HCl buffer (pH 8.0) containing 1mM DTT, 30% glycerol, 0.1M NaCl . Chromobox homolog 5, also known as CBX5, is a member of the heterochromatin protein family. The protein is enriched in the heterochromatin and associated with centromeres. CBX5 is involved in the formation of functional kinetochore through interaction with essential kinetochore proteins. It has a pseudogene located on chromosome 3. Also, The CBX5 proteins reassociate with chromatin at the end of mitosis, as Histone H3 is dephosphorylated. Recombinant human CBX5 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.