Recombinant Human HIF-1 alpha Protein
Novus Biologicals, part of Bio-Techne | Catalog # NBC1-18422
Key Product Details
Source
E. coli
Conjugate
Unconjugated
Applications
SDS-PAGE
Product Specifications
Description
An un-tagged recombinant protein corresponding to the amino acids 530-826 of Human HIF-1 alpha
Source: E.coli
Amino Acid Sequence: MEFKLELVEK LFAEDTEAKN PFSTQDTDLD LEMLAPYIPM DDDFQLRSFD QLSPLESSSA SPESASPQST VTVFQQTQIQ EPTANATTTT ATTDELKTVT KDRMEDIKIL IASPSPTHIH KETTSATSSP YRDTQSRTAS PNRAGKGVIE QTEKSHPRSP NVLSVALSQR TTVPEEELNP KILALQNAQR KRKMEHDGSL FQAVGIGTLL QQPDDHAATT SLSWKRVKGC KSSEQNGMEQ KTIILIPSDL ACRLLGQSMD ESGLPQLTSY DCEVNAPIQG SRNLLQGEEL LRALDQVN
Purity
>90%, by SDS-PAGE
Predicted Molecular Mass
32.8 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Protein / Peptide Type
Recombinant Protein
Reviewed Applications
Read 1 review rated 5 using NBC1-18422 in the following applications:
Scientific Data Images for Recombinant Human HIF-1 alpha Protein
Block/Neutralize: Recombinant Human HIF-1 alpha Protein [NBC1-18422] - Images of normal mouse kidney showing (A) staining with HIF-1 alpha antibody NB100-479 and (B) staining blocking with NBC1-18422 used at 10-fold excess concentration vs HIF-1 alpha antibody. Images provided by Dr Yves Heremans and please see the product review for additional details.
![SDS-PAGE: Recombinant Human HIF-1 alpha Protein [NBC1-18422]](https://resources.bio-techne.com/images/products/Recombinant-Human-HIF-1-alpha-Protein-SDS-Page-NBC1-18422-img0009.jpg "SDS-PAGE: Recombinant Human HIF-1 alpha Protein [NBC1-18422]")
SDS-PAGE: Recombinant Human HIF-1 alpha Protein [NBC1-18422]
SDS-Page: Recombinant Human HIF-1 alpha Protein [NBC1-18422] - 3ug by SDS-PAGE under reducing condition and visualized by coomassie blue stainFormulation, Preparation and Storage
NBC1-18422
| Formulation | 20 mM Tris-HCl buffer (pH 7.5) 1 mM DTT |
| Preservative | No Preservative |
| Concentration | 1 mg/ml |
| Shipping | The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles. |
Background: HIF-1 alpha/HIF1A
HIF-1 or hypoxia inducible factor 1 (predicted molecular weight 93kDa), is a transcription factor commonly referred to as a "master regulator of the hypoxic response" for its central role in the regulation of cellular adaptations to hypoxia. In its active form under hypoxic conditions, HIF-1 is stabilized by the formation of a heterodimer of HIF-1 alpha and ARNT/HIF-1 beta subunits. Nuclear HIF-1 engages p300/CBP for binding to hypoxic response elements (HREs). This process induces transcription and regulation of genes including EPO, VEGF, iNOS2, ANGPT1 and OCT4 (4,5).
Under normoxic conditions, the HIF-1 alpha subunit is rapidly targeted and degraded by the ubiquitin proteasome system. This process is mediated by prolyl hydroxylase domain enzymes (PHDs), which catalyze the hydroxylation of key proline residues (Pro-402 and Pro-564) within the oxygen-dependent degradation domain of HIF-1 alpha. Once hydroxylated, HIF-1 alpha binds the von Hippel-Lindau tumor suppressor protein (pVHL) for subsequent ubiquitination and proteasomal degradation (4). pVHL dependent regulation of HIF-1 alpha plays a role in normal physiology and disease states. Regulation of HIF-1 alpha by pVHL is critical for the suppressive function of FoxP3+ regulatory Tcells (6). Repression of pVHL expression in chronic lymphocytic leukemia (CLL) B cells leads to HIF-1 alpha stabilization and increased VEGF secretion (7).
References
1. Semenza, G. L., Agani, F., Feldser, D., Iyer, N., Kotch, L., Laughner, E., & Yu, A. (2000). Hypoxia, HIF-1, and the pathophysiology of common human diseases. Advances in Experimental Medicine and Biology.
2. Muz, B., de la Puente, P., Azab, F., & Azab, A. K. (2015). The role of hypoxia in cancer progression, angiogenesis, metastasis, and resistance to therapy. Hypoxia. https://doi.org/10.2147/hp.s93413
3. Huang, Y., Lin, D., & Taniguchi, C. M. (2017). Hypoxia inducible factor (HIF) in the tumor microenvironment: friend or foe? Science China Life Sciences. https://doi.org/10.1007/s11427-017-9178-y
4. Koyasu, S., Kobayashi, M., Goto, Y., Hiraoka, M., & Harada, H. (2018). Regulatory mechanisms of hypoxia-inducible factor 1 activity: Two decades of knowledge. Cancer Science. https://doi.org/10.1111/cas.13483
5. Dengler, V. L., Galbraith, M. D., & Espinosa, J. M. (2014). Transcriptional regulation by hypoxia inducible factors. Critical Reviews in Biochemistry and Molecular Biology. https://doi.org/10.3109/10409238.2013.838205
6. Lee, J. H., Elly, C., Park, Y., & Liu, Y. C. (2015). E3Ubiquitin Ligase VHL Regulates Hypoxia-Inducible Factor-1 alpha to Maintain Regulatory T Cell Stability and Suppressive Capacity. Immunity. https://doi.org/10.1016/j.immuni.2015.05.016
7. Ghosh, A. K., Shanafelt, T. D., Cimmino, A., Taccioli, C., Volinia, S., Liu, C. G., ... Kay, N. E. (2009). Aberrant regulation of pVHL levels by microRNA promotes the HIF/VEGF axis in CLL B cells. Blood. https://doi.org/10.1182/blood-2008-10-185686
Long Name
Hypoxia Inducible Factor 1 Subunit Alpha
Alternate Names
BHLHE78, HIF 1A, HIF-1a, HIF1 alpha, HIF1A, MOP1, PASD8
Gene Symbol
HIF1A
Additional HIF-1 alpha/HIF1A Products
Product Documents for Recombinant Human HIF-1 alpha Protein
Product Specific Notices for Recombinant Human HIF-1 alpha Protein
This product is for research use only and is not approved for use in humans or in clinical diagnosis. This product is guaranteed for 1 year from date of receipt.
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