Purity ~90% (SDS-PAGE). CETN2, also called caltractin, belongs to a family of calcium-binding proteins and is a structural component of the centrosome. This protein plays a role in nucleotide excision repair via association with xeroderma pigmentosum group C protein, suggesting possible coupling of cell division and nucleotide excision repair. Source: Recombinant protein corresponding to aa1-172 from human CETN2, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~21.9kD (192aa) AA