• Name
  • Description
  • Pricings
  • Quantity
  • CENPB Human
  • Centromere Protein B Human Recombinant
  • Shipped with Ice Packs

Catalogue number



Major centromere autoantigen B, Centromere protein B, CENP-B, CENPB.


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 molecular mass of 80kDa.
CENPB is expressed with a -6x His tag at N-terminus and purified by proprietary chromatographic techniques.


Sf9 insect cells.

Physical Appearance

Sterile Filtered liquid formulation.


CENPB is supplied at a concentration of in 20mM HEPES buffer pH-7.6, 250mM NaCl and 20% glycerol.


Store at 4°C if entire vial will be used within 2-4 weeks. 
Store, frozen at -20°C for longer periods of time. 
Avoid multiple freeze-thaw cycles.

Coating concentration

0.15-0.375 µg/ml (depending on the type of ELISA plate and coating buffer).
Suitable for biotinylation and iodination.


Greater than 95% as determined by SDS-PAGE.


Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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