Core-binding factor beta subunit; PEBP2B (polyomavirus enhancer binding protein b); PEA2; CBF-beta; Core-binding factor; beta subunit

For Research Use Only. Not for use in diagnostic procedures.

E Coli

> 85% by SDS-PAGE

Liquid. In 20 mM MES (pH 6.0) containing 0.1 mM PMSF, 10% glycerol

0.5 mg/ml (determined by Bradford assay) (lot specific)

Can be stored at 4 degree C short term (1-2 weeks).
For long term storage, aliquot and store at -20 degree C or -70 degree C.
Avoid repeated freezing and thawing cycles.

Small volumes of CBFB recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

CBFB, also known as PEBP2B, is the beta subunit of a heterodimeric core-binding transcription factor belonging to the PEBP2/CBF transcription factor family which master-regulates a host of genes specific to hematopoiesis (e.g., RuNX1) and osteogenesis (e.g., RuNX2). This protein is a non-DNA binding regulatory subunit and it allosterically enhances DNA binding by alpha subunit. Recombinant human CBFB protein, fused to His-tag at N-terminus, was expressed in E Coli and purified by using conventional chromatography.

Transcription & Translation

SDS-PAGE

23.6 kDa (202aa), confirmed by MALDI-TOF

core-binding factor beta subunit

core-binding factor subunit beta

Core-binding factor subunit beta

CBF-beta; PEA2-beta; PEBP2-beta??[Similar Products]

The protein encoded by this gene is the beta subunit of a heterodimeric core-binding transcription factor belonging to the PEBP2/CBF transcription factor family which master-regulates a host of genes specific to hematopoiesis (e.g., RUNX1) and osteogenesis (e.g., RUNX2). The beta subunit is a non-DNA binding regulatory subunit; it allosterically enhances DNA binding by alpha subunit as the complex binds to the core site of various enhancers and promoters, including murine leukemia virus, polyomavirus enhancer, T-cell receptor enhancers and GM-CSF promoters. Alternative splicing generates two mRNA variants, each encoding a distinct carboxyl terminus. In some cases, a pericentric inversion of chromosome 16 [inv(16)(p13q22)] produces a chimeric transcript consisting of the N terminus of core-binding factor beta in a fusion with the C-terminal portion of the smooth muscle myosin heavy chain 11. This chromosomal rearrangement is associated with acute myeloid leukemia of the M4Eo subtype. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

CBF binds to the core site, 5'-PYGPYGGT-3', of a number of enhancers and promoters, including murine leukemia virus, polyomavirus enhancer, T-cell receptor enhancers, LCK, IL3 and GM-CSF promoters. CBFB enhances DNA binding by RUNX1.

Speck NA., et al. (2009) Blood. 113 (13):3070-9.; Ito Y., et al. (2008) Blood. 112 (9):3777-87.;

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