antibody

HIF1A Monoclonal Antibody

MBS126135

0.1 mL

380 USD

monoclonal

mouse

nonconjugated

human, mouse, rat

western blot, immunohistochemistry, immunocytochemistry

Antibody

HIF1A Monoclonal Antibody

HIF1A

HIF-1alpha: HIF-1a; HIF1a; ARNT interacting protein; HIF 1 alpha; HIF 1alpha; PASD8; MOP1

Hypoxia-inducible factor 1-alpha; Hypoxia-inducible factor 1-alpha; hypoxia-inducible factor 1-alpha; HIF-1-alpha; member of PAS protein 1; ARNT interacting protein; ARNT-interacting protein; member of PAS superfamily 1; hypoxia-inducible factor1alpha; PAS domain-containing protein 8; basic-helix-loop-helix-PAS protein MOP1; class E basic helix-loop-helix protein 78; hypoxia-inducible factor 1 alpha isoform I.3; hypoxia-inducible factor 1, alpha subunit (basic helix-loop-helix transcription factor); hypoxia inducible factor 1, alpha subunit (basic helix-loop-helix transcription factor); ARNT-interacting protein; Basic-helix-loop-helix-PAS protein MOP1; Class E basic helix-loop-helix protein 78; bHLHe78; Member of PAS protein 1; PAS domain-containing protein 8

HIF1A

HIF1A; HIF1A; HIF1; MOP1; PASD8; HIF-1A; bHLHe78; HIF-1alpha; HIF1-ALPHA; BHLHE78; MOP1; PASD8; HIF-1-alpha; HIF1-alpha; bHLHe78

HIF1A_HUMAN

Monoclonal

IgG

Mouse

Human, Mouse, Rat

826

Affinity Purification

1mg/ml

Store at -20 degree C (regular) or -80 degree C (long term). Avoid freeze / thaw cycles. Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.

Western Blot (WB), Immunohistochemistry (IHC), Immunocytochemistry (ICC)

WB: 1:500 - 1:2000. IHC: 1:50 - 1:200. ICC: 1:50 - 1:200

Species: Human. Immunogen: Recombinant Protein

Immunogen: Recombinant protein of Human Hif1a. Calculated Molecular Weight: 93kDa

Monoclonal

Hypoxia-inducible factor 1 (HIF1) is a heterodimeric transcription factor that plays a critical role in the cellular response to hypoxia (1). The HIF1 complex consists of two subunits, HIF-1alpha and HIF-1beta, which are basic helix-loop-helix proteins of the PAS (Per, ARNT, Sim) family (2). HIF1 regulates the transcription of a broad range of genes that facilitate responses to the hypoxic environment, including genes regulating angiogenesis, erythropoiesis, cell cycle, metabolism and apoptosis. The widely expressed HIF-1alpha is typically degraded rapidly in normoxic cells by the ubiquitin/proteasomal pathway. Under normoxic conditions, HIF-1alpha is proline hydroxylated leading to a conformational change that promotes binding to the von Hippel Lindau protein (VLH) E3 ligase complex; ubiquitination and proteasomal degradation follows (3,4). Both hypoxic conditions and chemical hydroxylase inhibitors (such as desferrioxamine and cobalt) inhibit HIF-1alpha degradation and lead to its stabilization. In addition, HIF-1alpha can be induced in an oxygen-independent manner by various cytokines through the PI3K-AKT-mTOR pathway (5-7).HIF-1beta is also known as AhR nuclear translocator (ARNT) due to its ability to partner with the aryl hydrocarbon receptor (AhR) to form a heterodimeric transcription factor complex (8). Together with AhR, HIF-1beta plays an important role in xenobiotics metabolism (8). In addition, a chromosomal translocation leading to a TEL-ARNT fusion protein is associated with acute myeloblastic leukemia (9). Studies also found that ARNT/HIF-1beta expression levels decrease significantly in pancreatic islets from patients with type 2 diabetes, suggesting that HIF-1beta plays an important role in pancreatic beta-cell function (10).

2498017

Q16665.1

Q16665

93kDa

AGE/RAGE Pathway (698754); Adipogenesis Pathway (198832); Angiogenesis Pathway (198772); Cellular Response To Hypoxia Pathway (645259); Cellular Responses To Stress Pathway (645258); Central Carbon Metabolism In Cancer Pathway (1059538); Central Carbon Metabolism In Cancer Pathway (1084231); Choline Metabolism In Cancer Pathway (1059539); Choline Metabolism In Cancer Pathway (1084232); Circadian Clock Pathway (187173)

This gene encodes the alpha subunit of transcription factor hypoxia-inducible factor-1 (HIF-1), which is a heterodimer composed of an alpha and a beta subunit. HIF-1 functions as a master regulator of cellular and systemic homeostatic response to hypoxia by activating transcription of many genes, including those involved in energy metabolism, angiogenesis, apoptosis, and other genes whose protein products increase oxygen delivery or facilitate metabolic adaptation to hypoxia. HIF-1 thus plays an essential role in embryonic vascularization, tumor angiogenesis and pathophysiology of ischemic disease. Alternatively spliced transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jul 2011]

HIF1A: a master transcriptional regulator of the adaptive response to hypoxia. Under hypoxic conditions, activates the transcription of over 40 genes, including erythropoietin, glucose transporters, glycolytic enzymes, vascular endothelial growth factor, HILPDA, and other genes whose protein products increase oxygen delivery or facilitate metabolic adaptation to hypoxia. Plays an essential role in embryonic vascularization, tumor angiogenesis and pathophysiology of ischemic disease. Binds to core DNA sequence 5 -[AG]CGTG-3 within the hypoxia response element (HRE) of target gene promoters. Activation requires recruitment of transcriptional coactivators such as CREBPB and EP300. Activity is enhanced by interaction with both, NCOA1 or NCOA2. Interaction with redox regulatory protein APEX seems to activate CTAD and potentiates activation by NCOA1 and CREBBP. Involved in the axonal distribution and transport of mitochondria in neurons during hypoxia. Interacts with the HIF1A beta/ARNT subunit; heterodimerization is required for DNA binding. Interacts with COPS5; the interaction increases the transcriptional activity of HIF1A through increased stability. Interacts with EP300 (via TAZ-type 1 domains); the interaction is stimulated in response to hypoxia and inhibited by CITED2. Interacts with CREBBP (via TAZ-type 1 domains). Interacts with NCOA1, NCOA2, APEX and HSP90. Interacts (hydroxylated within the ODD domain) with VHLL (via beta domain); the interaction, leads to polyubiquitination and subsequent HIF1A proteasomal degradation. During hypoxia, sumoylated HIF1A also binds VHL; the interaction promotes the ubiquitination of HIF1A. Interacts with SENP1; the interaction desumoylates HIF1A resulting in stabilization and activation of transcription. Interacts (Via the ODD domain) with ARD1A; the interaction appears not to acetylate HIF1A nor have any affect on protein stability, during hypoxia. Interacts with RWDD3; the interaction enhances HIF1A sumoylation. Interacts with TSGA10. Interacts with RORA (via the DNA binding domain); the interaction enhances HIF1A transcription under hypoxia through increasing protein stability. Interaction with PSMA7 inhibits the transactivation activity of HIF1A under both normoxic and hypoxia- mimicking conditions. Interacts with USP20. Interacts with RACK1; promotes HIF1A ubiquitination and proteasome- mediated degradation. Interacts (via N-terminus) with USP19. Under reduced oxygen tension. Induced also by various receptor-mediated factors such as growth factors, cytokines, and circulatory factors such as PDGF, EGF, FGF2, IGF2, TGFB1, HGF, TNF, IL1B, angiotensin-2 and thrombin. However, this induction is less intense than that stimulated by hypoxia. Repressed by HIPK2 and LIMD1. Expressed in most tissues with highest levels in kidney and heart. Overexpressed in the majority of common human cancers and their metastases, due to the presence of intratumoral hypoxia and as a result of mutations in genes encoding oncoproteins and tumor suppressors. 2 isoforms of the human protein are produced by alternative splicing. Protein type: Autophagy; DNA-binding; Transcription factor. Chromosomal Location of Human Ortholog: 14q23.2. Cellular Component: nucleoplasm; transcription factor complex; cytoplasm; nucleolus; nuclear speck; cytosol; nucleus. Molecular Function: RNA polymerase II transcription factor activity, enhancer binding; histone acetyltransferase binding; signal transducer activity; protein binding; enzyme binding; sequence-specific DNA binding; protein heterodimerization activity; ubiquitin protein ligase binding; histone deacetylase binding; Hsp90 protein binding; transcription factor binding; protein kinase binding; transcription factor activity; nuclear hormone receptor binding. Biological Process: lactation; oxygen homeostasis; response to muscle activity; embryonic placenta development; cellular iron ion homeostasis; positive regulation of transcription, DNA-dependent; glucose homeostasis; signal transduction; positive regulation of vascular endothelial growth factor receptor signaling pathway; muscle maintenance; negative regulation of bone mineralization; elastin metabolic process; connective tissue replacement during inflammatory response; axon transport of mitochondrion; regulation of transcription, DNA-dependent; visual learning; angiogenesis; heart looping; regulation of transcription from RNA polymerase II promoter in response to oxidative stress; neural crest cell migration; negative regulation of growth; hemoglobin biosynthetic process; positive regulation of neuroblast proliferation; Notch signaling pathway; regulation of transforming growth factor-beta2 production; negative regulation of TOR signaling pathway; collagen metabolic process; embryonic hemopoiesis; positive regulation of nitric-oxide synthase activity; positive regulation of erythrocyte differentiation; B-1 B cell homeostasis; digestive tract morphogenesis; mRNA transcription from RNA polymerase II promoter; positive regulation of chemokine production; positive regulation of angiogenesis; neural fold elevation formation; regulation of gene expression; cartilage development; positive regulation of hormone biosynthetic process; positive regulation of glycolysis; lactate metabolic process; response to hypoxia; epithelial to mesenchymal transition; positive regulation of endothelial cell proliferation; positive regulation of transcription from RNA polymerase II promoter; cerebral cortex development

0.1 mL

380 USD

0.2 mL

555