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AB126585

HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit

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Hypoxia and the cellular response to hypoxic environment are central topics in studies of metabolism, cancer progression and development and stem cells.

View Alternative Names

BHLHE78, MOP1, PASD8, HIF1A, Hypoxia-inducible factor 1-alpha, HIF-1-alpha, HIF1-alpha, ARNT-interacting protein, Basic-helix-loop-helix-PAS protein MOP1, Class E basic helix-loop-helix protein 78, Member of PAS protein 1, PAS domain-containing protein 8, bHLHe78

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Flow Cytometry - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)
  • Flow Cyt

Supplier Data

Flow Cytometry - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)

Sample experiment using ab126585 on HeLa cells treated with a titration of DFO : BNIP3 readout. HeLa cells were cultured in standard tissue culture plates and treated with a titration of DFO. After 24 hours of DFO exposure, the cells were harvested, fixed and stained as described in the protocol. (A) Flow cytometry histogram showing mean fluorescent intensity of BNIP3 staining for untreated (Vehicle) and DFO treated samples. In this experiment anti-mouse-DyLight® 488 (ab96879, 1 : 1000) was used as the secondary antibody and the signal was collected in FL1. (B) Plot showing fold induction of BNIP3 levels (relative to untreated cells) as a function of DFO concentration (blue line). The gray dotted line demarks 1 (the untreated level). DFO concentrations =10μM induce BNIP3 protein levels in a dose dependent manner.

Immunocytochemistry/ Immunofluorescence - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)

Antibody specificity demonstrated by immunocytochemistry. Primary antibodies used in this assay kit were validated by staining HeLa cells +/- treatment with 1mM DFO (24h) and imaged by fluorescent microscopy. Staining is absent in untreated cells and induced by DFO treatment. HIF1 alpha localizes to the nucleus (as seen by co-localization with the DNA stain DAPI) as expected.

Immunocytochemistry/ Immunofluorescence - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)

Antibody specificity demonstrated by immunocytochemistry. Primary antibodies used in this assay kit were validated by staining HeLa cells +/- treatment with 1mM DFO (24h) and imaged by fluorescent microscopy. Staining of the BNIP3 antibody from this kit is nearly undetectable in untreated HeLa cells but is induced by DFO treatment. BNIP3 appears to have a mitochondrial staining pattern in the DFO-treated samples.

Flow Cytometry - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)
  • Flow Cyt

Supplier Data

Flow Cytometry - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)

Sample experiment using ab126585 on HeLa cells treated with a titration of DFO : HIF1 alpha readout. HeLa cells were cultured in standard tissue culture plates and treated with a titration of DFO. After 24 hours of DFO exposure, the cells were harvested, fixed and stained as described in the protocol. (A) Flow cytometry histogram showing mean fluorescent intensity of HIF1 alpha staining for untreated (Vehicle) and DFO treated samples. In this experiment anti-rabbit-DyLight®650 (ab96902, 1 : 2000) was used as the secondary antibody and the signal was collected in FL4. (B) Plot showing fold induction of HIF1 alpha levels (relative to untreated cells) as a function of DFO concentration (red line). The gray dotted line demarks 1 (the untreated level). DFO concentrations =10µM induce HIF1A protein levels in a dose dependent manner.

Western blot - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)
  • WB

Supplier Data

Western blot - HIF1a + BNIP3 Hypoxia Response Human Flow Cytometry Kit (AB126585)

Antibody specificity demonstrated by Western Blot. Primary antibodies used in this assay kit were validated by Western Blot using HeLa cell lysates that had been treated with a dose titration of DFO as indicated. (A) The HIF1 alpha band (indicated by arrow) is absent in untreated cells and induced by DFO. (B) Similarly, BNIP3 levels are increased by DFO treatment in a dose-dependent manner.

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Key facts

Detection method

Fluorescent

Assay Platform

Flow cytometer

Sample types

Suspension cells, Adherent cells

Assay type

Sandwich

Reacts with

Human

Product details

Hypoxia and the cellular response to hypoxic environment are central topics in studies of metabolism, cancer progression and development and stem cells. A key player is the transcription factor HIF1 alpha (hypoxia inducible factor 1 alpha) which is stabilized at the protein level in response to decreased oxygen tension. HIF1 alpha then promotes transcription of a number of factors that alters cellular physiology. This Hypoxic Response Human Flow Cytometry Kit provides duplexed measurements of the transcription factor HIF1 alpha and the HIF1 alpha responsive protein BNIP3.

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
+4°C

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

HIF1a also known as Hypoxia-Inducible Factor 1-alpha is a transcription factor with a mass of approximately 92 kDa. It functions mainly in response to low oxygen levels (hypoxia) within cells. HIF1a exists in the cytoplasm under normal oxygen conditions and translocates to the nucleus during hypoxia. It is expressed in various tissues and cells particularly those located in areas with fluctuating oxygen levels such as skeletal muscle and heart tissues. The protein also shows up in less oxygenated environments like tumors due to its role in adapting to and surviving low oxygen conditions.
Biological function summary

HIF1a plays a major role in oxygen homeostasis by regulating the expression of genes involved in important processes such as angiogenesis metabolism and cell survival. HIF1a forms a heterodimeric complex with HIF1b enabling DNA binding to hypoxia response elements of target genes. Additionally BNIP3 an apoptosis-inducing protein regulated by HIF1a under hypoxic conditions promotes cell death and autophagy. The interplay between HIF1a and BNIP3 contributes to maintaining cellular energy balance and responding to stress.

Pathways

HIF1a is an important player in the hypoxia response pathway which involves numerous transcriptional targets that control oxygen-sensitive processes. It tightly associates with the VEGF (vascular endothelial growth factor) pathway to promote angiogenesis. HIF1a also links with other proteins like PHDs (prolyl hydroxylases) which play a part in the oxygen-sensing mechanism by regulating the degradation of HIF1a under normoxic conditions. Through these pathways HIF1a ensures cells adapt to and survive fluctuations in oxygen availability.

HIF1a has significant roles in cancer and cardiovascular diseases due to its involvement in promoting cell survival angiogenesis and metabolic reprogramming. Elevated levels of HIF1a are commonly found in many tumors where it drives tumor progression through enhanced glucose metabolism and blood vessel formation. In cardiac ischemia HIF1a activation aids tissue adaptation to oxygen deprivation and may protect against heart failure. Its role in both cancer and cardiovascular disease often links with BNIP3 where it contributes to disease pathology by modulating programmed cell death and adaptation mechanisms.

Product protocols

Target data

The protein expressed by the gene HIF1A functions as a master transcriptional regulator of the adaptive response to hypoxia, activating the transcription of over 40 genes under hypoxic conditions, including erythropoietin, glucose transporters, glycolytic enzymes, vascular endothelial growth factor, HILPDA, and others. These genes' protein products enhance oxygen delivery or facilitate metabolic adaptation to hypoxia. HIF1A is crucial for embryonic vascularization, tumor angiogenesis, and ischemic disease pathophysiology. Its activation requires transcriptional coactivators like CREBBP and EP300, with activity enhanced by interactions with NCOA1 and/or NCOA2. Interaction with redox regulatory protein APEX1 activates CTAD and enhances activation by NCOA1 and CREBBP. Additionally, HIF1A is involved in axonal distribution and mitochondrial transport in neurons during hypoxia. In the context of microbial infection, specifically human coronavirus SARS-CoV-2, HIF1A is necessary for glycolysis induction in monocytes, leading to a proinflammatory state, inducing expression of ACE2, cytokines, and promoting virus replication and monocyte inflammatory response. This supplementary information is collated from multiple sources and compiled automatically.
See full target information HIF1A

Additional targets

BNIP3

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