Recombinant Human Centromere Protein B His

Store at 2-4C for up to 4 weeks or in working aliquots at -20C for longer storage. Avoid repeated freeze-thaw cycles.

Centromere proteins are a group of proteins which form and/or mediate the function of centromeres, the central structures of chromosomes to which spindle fibers/microtubuli attach and pull the chromosomes apart in cell division. Currently, 9 centromere proteins are known and designated CENPA to CENP-I. Most of the centromere proteins are targets of autoantibodies, the anti-centromere antibodies. CENPB is the most important of the centromeric autoantigens: it has a molecular weight of approx. 66 kDa and plays an important role in the formation of the centromeric chromatin. CENPB antibodies are present in the sera of up to 80% of patients with CREST syndrome. CENPB Human Recombinant produced in SF9 is a glycosylated, polypeptide chain having a MW = 65, 940 Dalton. CENPB is expressed with a -6x His tag at N-terminus and purified by proprietary chromatographic techniques.

< 0.1 ng/ug of CENPB