CENP-B (Human Centromere Protein B)
Origin:
Recombinant
Cat. No.:
41620
Tag:
N-terminal 6xHis
Size:
0.1 mg
Source:
Spodoptera frugiperda Sf9
Purity:
>90%
Other Names:
CENP-B, CENP B
Species:
Human
INTRODUCTION
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. The centromere protein B (CENPB) is one of them. CENPB is a DNA-binding protein derived from transposases of the pogo DNA transposon family and plays an important role in the assembly of specific centromere structures in interphase nuclei and on mitotic chromosomes. CENPB is the most important centromeric autoantigens and auantibodies against CENPB are present in the sera of up to 80% of patients with CREST syndrome.
IMMUNOLOGICAL FUNCTION
As an autoantigen, CENP-B binds with IgG-type human auto-antibodies.
AMINO ACID SEQUENCE
MSYYHHHHHHDYDIPTTENLYFQGAGPKRRQLTFREKSRIIQEVEENPDLRKGEIARRFNIPPSTLSTILKNKRAILASERKYGVASTCRKTNKLSPYDKLEGLLIAWFQQIRAAGLPVKGIILKEKALRIAEELGMDDFTASNGWLDRFRRRHGVVSCSGVARARARNAAPRTPAAPASPAAVPSEGSGGSTTGWRAREEQPPSVAEGYASQDVFSATETSLWYDFLPDQAAGLCGGDGRPRQATQRLSVLLCANADGSEKLPPLVAGKSAKPRAGQAGLPCDYTANSKGGVTTQALAKYLKALDTRMAAESRRVLLLAGRLAAQSLDTSGLRHVQLAFFPPGTVHPLERGVVQQVKGHYRQAMLLKAMAALEGQDPSGLQLGLTEALHFVAAAWQAVEPSDIAACFREAGFGGGPNATITTSLKSEGEEEEEEEEEEEEEEGEGEEEEEEGEEEEEEGGEGEELGEEEEVEEEGDVDSDEEEEEDEESSSEGLEAEDWAQGVVEAGGSFGAYGAQEEAQCPTLHFLEGGEDSDSDSEEEDDEEEDDEDEDDDDDEEDGDEVPVPSFGEAMAYFAMVKRYLTSFPIDDRVQSHILHLEHDLVHVTRKNHARQAGVRGLGHQS
APPLICATIONS
Standard ELISA test, line/dot assay and microarray assay with positive/negative sera panels.
FORMULATION
Liquid in storage buffer (50mM Tris, 300-500mM NaCl, 10% Glycerol, Protease inhibitor, pH8.0).
DESCRIPTION
Expressed in insect Sf9 cells with total 623 AA.
Mw: 68.1 KDa (calculated).
N-terminal 6xHis-tag and TEV cleavage site, 25 extra AA (highlighted).
Recombinant antigen for research use or manufacturing only.
STORAGE
Store at –80°C. Avoid repeated freezing/thawing cycles.
QUALITY CONTROL TEST
BCA to determine quantity of the protein.
SDS PAGE to determine purity of the protein.