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HIF-1 alpha Antibody (HIF1A/84)

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-34248

Novus Biologicals, part of Bio-Techne
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NBP2-34248-0.1mg

Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry, Immunocytochemistry/ Immunofluorescence

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG2b Kappa Clone # HIF1A/84

Concentration

0.2 mg/ml

Product Specifications

Immunogen

Recombinant human HIF-1 alpha protein (Uniprot: Q16665)

Localization

Nuclear and cytoplasmic

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2b Kappa

Theoretical MW

93 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.

Description

200ug/ml of antibody purified from Bioreactor Concentrate by Protein A or G. Prepared in 10 mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0 mg/ml.

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C.

Scientific Data Images for HIF-1 alpha Antibody (HIF1A/84)

Immunocytochemistry/ Immunofluorescence: HIF-1 alpha Antibody (HIF1A/84) [NBP2-34248]

Immunocytochemistry/ Immunofluorescence: HIF-1 alpha Antibody (HIF1A/84) [NBP2-34248]

Immunocytochemistry/Immunofluorescence: HIF-1 alpha Antibody (HIF1A-84) [NBP2-34248] - Immunofluorescence Analysis of MeOH-fixed HeLa cells labeled with HIF-1 alpha Mouse Monoclonal Antibody (HIF1A/84) followed bygoat anti-mouse IgG-CF488 (Green). The nuclear counterstain is Reddot (Red).

Applications for HIF-1 alpha Antibody (HIF1A/84)

Application
Recommended Usage

Flow Cytometry

1-2 ug/million cells

Immunocytochemistry/ Immunofluorescence

1-2 ug/ml
Application Notes
Optimal dilution for a specific application should be determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

10 mM PBS with 0.05% BSA

Preservative

0.05% Sodium Azide

Concentration

0.2 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.

Background: HIF-1 alpha/HIF1A

Hypoxia contributes to the pathophysiology of human disease, including myocardial and cerebral ischemia, cancer, pulmonary hypertension, congenital heart disease and chronic obstructive pulmonary disease (1). In cancer and particularly solid tumors, hypoxia plays a critical role in the regulation of genes involved in stem cell renewal, epithelial to mesenchymal transition (EMT), metastasis and angiogenesis. In the tumor microenvironment (TME), hypoxia influences the properties and function of stromal cells (e.g., fibroblasts, endothelial and immune cells) and is a strong determinant of tumor progression (2,3).

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

UniProt

Additional HIF-1 alpha/HIF1A Products

Product Documents for HIF-1 alpha Antibody (HIF1A/84)

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for HIF-1 alpha Antibody (HIF1A/84)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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