HIF1A Antibody / HIF-1 alpha

• Catalog Number: orb1825527
• Category: Antibodies
• Description: HIF1 (hypoxia-inducible factor 1), a heterodimeric transcription factor complex central to cellular response to hypoxia, consists of two subunits (HIF-1 alpha and HIF-1 beta) which are basic helix-loop-helix proteins of the PAS (Per, ARNT, Sim) family. Expression of HIF-1 alpha protein is regulated by cellular oxygen level alterations as well as in oxygen-independent manner via different cytokines (through the PI3K-AKT-mTOR pathway), growth factors, oncogenic activation, or loss of tumor suppressor function etc. In normoxic cells, HIF-1 alpha is proline hydroxylated leading to a conformational change that promotes its binding to the VLH (von Hippel Lindau) protein E3 ligase complex; ubiquitination and followed by rapid proteasomal degradation. Hypoxia as well as chemical hydroxylase inhibitors (desferrioxamine, cobalt etc.) inhibit HIF-1 alpha degradation and lead to its accumulation in the cells, whereas, contrastingly, HIF-1 beta/ARNT (AhR nuclear translocator) remains stable under both conditions. Besides their critical role in hypoxic response, HIF1s regulates the transcription of genes responsible for angiogenesis, erythropoiesis/iron-metabolism, glucose metabolism, cell proliferation/survival, adipogenesis, carotid body formation, B lymphocyte development and immune reactions.
• Species/Host: Mouse
• Clonality: Monoclonal
• Clone Number: HIF1A/3248
• Tested applications: IHC-P
• Reactivity: Human
• Isotype: Mouse IgG1, kappa
• Immunogen: A recombinant partial protein sequence (within amino acids 239-530) from the human protein was used as the immunogen for the HIF1A antibody.
• Antibody Type: Primary Antibody
• Dilution range: Immunohistochemistry (FFPE): 1-2ug/ml for 30 minutes at RT
• Conjugation: Unconjugated
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide
• Hazard Information: This HIF1A antibody is available for research use only.
• UniProt ID: Q16665
• Storage: Aliquot the HIF1A antibody and store frozen at -20°C or colder. Avoid repeated freeze-thaw cycles.
• Note: For research use only
• Expiration Date: 12 months from date of receipt.

Analysis of a HuProt (TM) microarray containing more than 19000 full-length human proteins using HIF1A antibody (clone HIF1A/3248). Z- and S- Score: The Z-score represents the strength of a signal that a monoclonal antibody (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProt (TM) array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If targets on HuProt (TM) are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-score. S-score therefore represents the relative target specificity of a mAb to its intended target. A mAb is considered to specific to its intended target, if the mAb has an S-score of at least 2.5. For example, if a mAb binds to protein X with a Z-score of 43 and to protein Y with a Z-score of 14, then the S-score for the binding of that mAb to protein X is equal to 29.

SDS-PAGE analysis of purified, BSA-free HIF1A antibody (clone HIF1A/3248) as confirmation of integrity and purity.

IHC staining of FFPE human breast carcinoma tissue with HIF1A antibody (clone HIF1A/3248). Inset: PBS used in place of primary Ab (secondary Ab negative control). HIER: boil tissue sections in pH9 10 mM Tris with 1 mM EDTA for 20 min and allow to cool before testing.