HBP1 Protein, Human, Recombinant (GST Tag)

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HBP1 Protein, Human, Recombinant (GST Tag): Product Information

Purity
> 95 % as determined by SDS-PAGE
Endotoxin
Please contact us for more information.
Activity
Testing in progress
Protein Construction
A DNA sequence encoding the mature form of human HBP1 (O60381-1) (Pro208-Phe345) was fused with the GST tag at the N-terminus.
Accession#
Expressed Host
E. coli
Species
Human
Predicted N Terminal
Met
Molecule Mass
The recombinant human HBP1 /GST chimera consists of 372 amino acids and has a predicted molecular mass of 42.5 kDa. It migrates as an approximately 43 KDa band in SDS-PAGE under reducing conditions.
Formulation
Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Please refer to the specific buffer information in the hard copy of CoA.
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -70℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

HBP1 Protein, Human, Recombinant (GST Tag): Images

HBP1 Background Information

HBP1 is a sequence-specific DNA-binding transcription factor. It is involved in many biological processes. It was reported that HBP1 binds to p16(INK4A) promoter and activates p16(INK4A) expression. We found that trichostatin A (TSA), an inhibitor of HDAC (histone deacetylase), induces p16(INK4A) expression in an HBP1-dependent manner. HBP1 activates or represses the expression of some specific genes during cell growth and differentiation. HBP1 was acetylated by p3/CBP in two regions: repression domain (K297/35/37) and P domain (K171/419). HBP1 acetylation after TSA treatment was confirmed by immunoprecipitation assay. HBP1 interacted with histone acetyltransferase p3 and CREB-binding protein (CBP) and also recruited p3/CBP to p16(INK4A) promoter. HBP1 acetylation at K419 plays an important role in HBP1-induced p16(INK4A) expression.
Full Name
HMG-box transcription factor 1
References
  • Tevosian SG. et al., 1997, Genes Dev. 11 (3): 383-96.
  • Lavender P. et al., 1997, Oncogene. 14 (22): 2721-8.
  • Swanson. et al., 2004, Nat Struct Mol Biol. 11 (8): 738-46.
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