Centromere protein B also known as major centromere autoantigen B is an autoantigen protein of the cell nucleus. In humans, centromere protein B is encoded by the CENPB gene. This gene product is a highly conserved protein that facilitates centromere formation. It is a DNA-binding protein that is derived from transposases of the pogo DNA transposon family. It contains a helix-loop-helix DNA binding motif at the N-terminus, and a dimerization domain at the C-terminus. The DNA binding domain recognizes and binds a 17-bp sequence (CENP-B box) in the centromeric alpha satellite DNA. This protein is proposed to play an important role in the assembly of specific centromere structures in interphase nuclei and on mitotic chromosomes. It is also considered a major centromere autoantigen recognized by sera from patients with anti-centromere antibodies.
Host
Rabbit
Immunogen Region
Amino acids HLEHDLVHVTRKNHA from the human protein were used as the immunogen for the CENPB antibody.
Isotype
Rabbit IgG
Reactivity
Human
Recombinant
No
Antigen
CENPB
Uniprot
P07199
Buffer
Lyophilized from 1X PBS with 2% Trehalose
Concentration
0.5mg/ml if reconstituted with 0.2ml sterile DI water
Format
Antigen affinity purified
Purification
Antigen affinity purified
Storage
After reconstitution, the CENPB antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.
Applications
FACS, IF, WB
Dilution
Western blot: 1-2ug/ml,Immunofluorescence (FFPE): 5ug/ml,Flow cytometry: 1-3ug/million cells