Purity > 90% as determined by SDS-PAGE. MW: 55.5kDa. Full Length: 1-247aa. N-terminal GST-tagged. Homo sapiens (Human). Component of the CENPA-NAC (nucleosome-associated) complex, a complex that plays a central role in assembly of kinetochore proteins, mitotic progression and chromosome segregation. The CENPA-NAC complex recruits the CENPA-CAD (nucleosome distal) complex and may be involved in incorporation of newly synthesized CENPA into centromeres. Required for chromosome congression and efficiently align the chromosomes on a metaphase plate.