Anti-Hypoxia Inducible Factor 1 α Antibody, clone H1α67

HIF is a transcriptional complex that plays a central role in mammalian oxygen homeostasis, the posttranslational modification by prolyl hydroxylation as a key regulatory event that targets HIF-alpha subunits for proteasomal destruction via the von Hippel-Lindau ubiquitylation complex. The transcriptional complex is composed of an alpha-beta heterodimer; HIF-beta being a constitutive nuclear protein that dimerises with oxygen regulated HIF-alpha subunits. In normoxia, 4-hydroxylation of human HIF-alpha at Pro402 or Pro564 by a set of HIF prolyl hydroxylase isoenzymes (PHD 1-3) mediates HIF1-alpha recognition by von Hippel-Lindau ubiquitin ligase complex leading to its proteasomal destruction. In hypoxia (deprivation of oxygen), lack of hydroxylase activity enables HIF-alpha subunits to escape destruction and become transcriptionally active. Thus HIF hydroxylases provide a focus for understanding cellular responses to hypoxia and target for therapeutic manipulation. There are several HIF factors, which include HIF 1-alpha, HIF 1-beta, HIF 2-alpha. HIF 1-alpha is an 812 a.a. protein in rat and 836 a.a. long in mouse and human. 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, 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. It is ubiquitous in expression as cytoplasmic in normoxia, nuclear translocation in response to hypoxia.

Predicted MW: 96 kDa, apparent MW: 120 kDa

Fusion protein from amino acids 432-528 of human HIF-1alpha.

Anti-Hypoxia Inducible Factor 1 α Antibody, clone H1α67 is a Mouse Monoclonal Antibody for detection of Hypoxia Inducible Factor 1 α also known as HIF-1 alpha or ARNT Interacting Protein & has been validated in EMSA, IHC, IP & WB.

Research Category
Epigenetics & Nuclear Function

Research Sub Category
Transcription Factors

Western blot: 1:500-1:1,000. The antibody recognizes a band of 120 kD in induced tissues and cells. Multiple bands may be present at 120 kD representing post-translational modification of HIF-1alpha.

Immunohistochemistry: 1:500-1:1,000. The antibody has been used successfully on formalin-fixed, paraffin embedded tissue sections after antigen retrieval.

Immunoprecipitation

Gel Shift

Optimal working dilutions must be determined by end user.

Recognizes Hypoxia inducible factor-1alpha (HIF-1alpha).

Format: Purified

Protein A Purified mouse immunoglobulin in 20 mM sodium phosphate, 250 mM NaCl, pH. 7.6, with 0.1% sodium azide as a preservative.

Protein A purified

Maintain for 1 year at 2–8°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Control
Cobalt chloride-treated MCF-7 cells

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Replaces: 04-1006

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