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    products/elisa/human-hif-1-alpha-elisa-kit-ab171577.pdf

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Cardiovascular Hypoxia HIF
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SimpleStep

Human HIF-1 alpha ELISA Kit (ab171577)

  • Datasheet
  • SDS
  • Protocol Booklet
Reviews (1) Submit a question References (12)

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Other - Human HIF-1 alpha ELISA Kit (ab171577)
  • Example HIF1 alpha standard curve.
  • Titration of HeLa-DFO (ab120727) extract within the working range of the assay.
  • Dose-dependent induction of HIF1 alpha in HeLa cells by DFO (ab120727).
  • Comparison of HIF1 alpha expression in HeLa cell extracts.

Key features and details

  • One-wash 90 minute protocol
  • Sensitivity: 42 pg/ml
  • Range: 0.23 ng/ml - 15 ng/ml
  • Sample type: Cell culture extracts
  • Detection method: Colorimetric
  • Assay type: Sandwich (quantitative)
  • Reacts with: Human

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Overview

  • Product name

    Human HIF-1 alpha ELISA Kit
    See all HIF-1 alpha kits
  • Detection method

    Colorimetric
  • Precision

    Intra-assay
    Sample n Mean SD CV%
    HeLa lysates 5 4.3%
    Inter-assay
    Sample n Mean SD CV%
    HeLa lysates 3 7%
  • Sample type

    Cell culture extracts
  • Assay type

    Sandwich (quantitative)
  • Sensitivity

    42 pg/ml
  • Range

    0.23 ng/ml - 15 ng/ml
  • Recovery

    Sample specific recovery
    Sample type Average % Range
    Cell culture media 112 94% - 129%
    Fetal Bovine Serum 109 102% - 120%
    Bovine Serum Albumin 97 93% - 106%
  • Assay time

    1h 30m
  • Assay duration

    One step assay
  • Species reactivity

    Reacts with: Human
  • Product overview

    Human HIF1a ELISA kit (ab171577) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of HIF1a protein in human cell extracts. It uses our proprietary SimpleStep ELISA® technology. Quantitate human HIF1a with 42 pg/ml sensitivity.

    SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:

            -Single-wash protocol reduces assay time to 90 minutes or less
            -High sensitivity, specificity and reproducibility from superior antibodies
            -Fully validated in biological samples
            -96-wells plate breakable into 12 x 8 wells strips

    A 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpeStep ELISA® kits.

  • Notes

    Hypoxia-inducible factor 1-alpha (HIF1 alpha) is a constitutively expressed transcription factor that is degraded under normal oxygen tensions but stabilized when oxygen is limiting (hypoxia). Under hypoxic conditions, stabilized HIF1 alpha translocates to the nucleus and promotes the transcription of a host of genes that enable the cell to adapt to the lack of oxygen. Aspects of the HIF1 alpha mediated hypoxic response include promotion of angiogenesis and the switch from aerobic respiration to anaerobic glycolysis. Many of the HIF1 alpha responsive genes encode proteins that promote glycolysis and/or inhibit oxidative phosphorylation (known as the Warburg effect). An exciting and developing area of current cancer research is examining how HIF-mediated metabolic reprogramming promotes tumor growth and survival.

    In most cases, HIF1 alpha will need to be stabilized to be measured (steady state levels of HIF1 alpha in non-hypoxic environments is exceeding low in most cell lines). This can be achieved by (a) creating a hypoxic environment (e.g. using a hypoxia chamber) or (b) by using chemical treatments that mimic hypoxia (e.g. cobalt chloride or deferoxamine). The sample data in this assay protocol was generated using deferoxamine (DFO). DFO is an iron chelator and disrupts the function the prolyl hydroxylases that degrade HIF1 alpha in normoxia. By disrupting the enzymes that degrade HIF1 alpha, DFO increases the abundance of HIF1 alpha protein.

    Abcam has not and does not intend to apply for the REACH Authorisation of customers’ uses of products that contain European Authorisation list (Annex XIV) substances.
    It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.

  • Platform

    Microplate

Properties

  • Storage instructions

    Store at +4°C. Please refer to protocols.
  • Components 1 x 96 tests
    10X Human HIF1a Capture Antibody 1 x 600µl
    10X Human HIF1a Detector Antibody 1 x 600µl
    10X Wash Buffer PT (ab206977) 1 x 20ml
    50X Cell Extraction Enhancer Solution (ab193971) 1 x 1ml
    5X Cell Extraction Buffer PTR (ab193970) 1 x 10ml
    Antibody Diluent 5B 1 x 6ml
    HIF1a Human Lyophilized Protein 2 vials
    Plate Seals 1 unit
    Sample Diluent NS (ab193972) 1 x 12ml
    SimpleStep Pre-Coated 96-Well Microplate (ab206978) 1 unit
    Stop Solution 1 x 12ml
    TMB Development Solution 1 x 12ml
  • Research areas

    • Cardiovascular
    • Hypoxia
    • HIF
    • Epigenetics and Nuclear Signaling
    • Transcription
    • Domain Families
    • HLH / Leucine Zipper
    • HLH
    • Epigenetics and Nuclear Signaling
    • DNA / RNA
    • RNA Processing
    • Other
    • Epigenetics and Nuclear Signaling
    • Cardiovascular/Immune
    • Hypoxia
    • HIF
    • Epigenetics and Nuclear Signaling
    • Transcription
    • Transcription Factors
    • Cell Biology
    • Other Antibodies
    • Oxidative Stress
    • Cancer
    • Invasion/microenvironment
    • Hypoxia
    • HIF
    • Cancer
    • Cancer Metabolism
    • Response to hypoxia
    • Metabolism
    • Pathways and Processes
    • Metabolic signaling pathways
    • Nucleotide metabolism
    • Metabolism
    • Pathways and Processes
    • Metabolism processes
    • Hypoxia
    • Kits/ Lysates/ Other
    • Kits
    • ELISA Kits
    • ELISA Kits
    • Nuclear Signaling ELISA kits
    • Kits/ Lysates/ Other
    • Kits
    • ELISA Kits
    • ELISA Kits
    • Epigenetics ELISA kits
    • Neuroscience
    • Processes
  • Function

    Functions as 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. 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.
  • Tissue specificity

    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.
  • Sequence similarities

    Contains 1 basic helix-loop-helix (bHLH) domain.
    Contains 1 PAC (PAS-associated C-terminal) domain.
    Contains 2 PAS (PER-ARNT-SIM) domains.
  • Domain

    Contains two independent C-terminal transactivation domains, NTAD and CTAD, which function synergistically. Their transcriptional activity is repressed by an intervening inhibitory domain (ID).
  • Post-translational
    modifications

    In normoxia, is hydroxylated on Pro-402 and Pro-564 in the oxygen-dependent degradation domain (ODD) by EGLN1/PHD1 and EGLN2/PHD2. EGLN3/PHD3 has also been shown to hydroxylate Pro-564. The hydroxylated prolines promote interaction with VHL, initiating rapid ubiquitination and subsequent proteasomal degradation. Deubiquitinated by USP20. Under hypoxia, proline hydroxylation is impaired and ubiquitination is attenuated, resulting in stabilization.
    In normoxia, is hydroxylated on Asn-803 by HIF1AN, thus abrogating interaction with CREBBP and EP300 and preventing transcriptional activation. This hydroxylation is inhibited by the Cu/Zn-chelator, Clioquinol.
    S-nitrosylation of Cys-800 may be responsible for increased recruitment of p300 coactivator necessary for transcriptional activity of HIF-1 complex.
    Requires phosphorylation for DNA-binding.
    Sumoylated; by SUMO1 under hypoxia. Sumoylation is enhanced through interaction with RWDD3. Desumoylation by SENP1 leads to increased HIF1A stability and transriptional activity.
    Ubiquitinated; in normoxia, following hydroxylation and interaction with VHL. Lys-532 appears to be the principal site of ubiquitination. Clioquinol, the Cu/Zn-chelator, inhibits ubiquitination through preventing hydroxylation at Asn-803.
    The iron and 2-oxoglutarate dependent 3-hydroxylation of asparagine is (S) stereospecific within HIF CTAD domains.
  • Cellular localization

    Cytoplasm. Nucleus. Cytoplasmic in normoxia, nuclear translocation in response to hypoxia. Colocalizes with SUMO1 in the nucleus, under hypoxia.
  • Target information above from: UniProt accession Q16665 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt
  • Alternative names

    • ARNT interacting protein
    • ARNT-interacting protein
    • Basic helix loop helix PAS protein MOP1
    • Basic-helix-loop-helix-PAS protein MOP1
    • bHLHe78
    • Class E basic helix-loop-helix protein 78
    • HIF 1A
    • HIF 1alpha
    • HIF-1-alpha
    • HIF-1alpha
    • HIF-alpha
    • HIF1
    • HIF1 A
    • HIF1 Alpha
    • HIF1-alpha
    • HIF1A
    • HIF1A_HUMAN
    • hifla
    • Hypoxia inducible factor 1 alpha
    • Hypoxia inducible factor 1 alpha isoform I.3
    • Hypoxia inducible factor 1 alpha subunit
    • Hypoxia inducible factor 1 alpha subunit basic helix loop helix transcription factor
    • Hypoxia inducible factor 1, alpha subunit (basic helix loop helix transcription factor)
    • Hypoxia inducible factor1alpha
    • Hypoxia-inducible factor 1-alpha
    • Member of PAS protein 1
    • Member of PAS superfamily 1
    • Member of the PAS Superfamily 1
    • MOP 1
    • MOP1
    • PAS domain-containing protein 8
    • PASD 8
    • PASD8
    see all
  • Database links

    • Entrez Gene: 3091 Human
    • Omim: 603348 Human
    • SwissProt: Q16665 Human
    • Unigene: 597216 Human

    Associated products

    • Related Products

      • Deferoxamine mesylate, Iron chelator (ab120727)

    Images

    • Other - Human HIF-1 alpha ELISA Kit (ab171577)
      Other - Human HIF-1 alpha ELISA Kit (ab171577)

      SimpleStep ELISA technology allows the formation of the antibody-antigen complex in one single step, reducing assay time to 90 minutes. Add samples or standards and antibody mix to wells all at once, incubate, wash, and add your final substrate. See protocol for a detailed step-by-step guide.

       

    • Example HIF1 alpha standard curve.
      Example HIF1 alpha standard curve.

      Example HIF1 alpha standard curve. Background-subtracted data values (mean +/- SD) are graphed.

    • Titration of HeLa-DFO (ab120727) extract within the working range of the assay.
      Titration of HeLa-DFO (ab120727) extract within the working range of the assay.

      Titration of HeLa-DFO extract within the working range of the assay. Background subtracted data from duplicate measurements are plotted. To induce HIF1 alpha protein levels, HeLa cells were treated with 500 µM Deferoxamine (DFO) for 24 hours.

    • Dose-dependent induction of HIF1 alpha in HeLa cells by DFO (ab120727).
      Dose-dependent induction of HIF1 alpha in HeLa cells by DFO (ab120727).

      Dose-dependent induction of HIF1 alpha in HeLa cells by deferoxamine (DFO). HeLa cells were cultured in 96-well tissue culture plates and were either untreated or exposed to varying dose of DFO for 24 hours. Raw data with standard deviation is plotted from triplicate measurements.

    • Comparison of HIF1 alpha expression in HeLa cell extracts.
      Comparison of HIF1 alpha expression in HeLa cell extracts.

      Comparison of HIF1 alpha expression in HeLa cell extracts (with and without DFO treatment) by ELISA (barchart) and western blot (top). Background subtracted OD450 nm data from three loading concentrations are shown. The HIF1 alpha detector antibody was used to blot the same lysates as analyzed by ELISA (40 µg loaded/lane). The GAPDH blot is included to show the relative loads of each lysate. In the HeLa cell line, DFO treatment is required to detect HIF1 alpha protein by both ELISA and western blot.

    Protocols

    • Protocol Booklet

    Click here to view the general protocols

    Datasheets and documents

    • SDS download

    • Datasheet download

      Download

    References (12)

    Publishing research using ab171577? Please let us know so that we can cite the reference in this datasheet.

    ab171577 has been referenced in 12 publications.

    • Lee SM  et al. Optimal Hypoxic Preconditioning of Human Embryonic Stem Cell-Derived Mesenchymal Stem Cells (hES-MSCs) and Their Characteristics. Int J Stem Cells 14:221-228 (2021). PubMed: 33632987
    • Liu Z  et al. Expression and predictive value of HIF-1a and VEGF in patients with burns following treatment. Exp Ther Med 20:141 (2020). PubMed: 33093879
    • Logan SM  et al. The brains of six African mole-rat species show divergent responses to hypoxia. J Exp Biol 223:N/A (2020). PubMed: 32041803
    • Zhou T  et al. Association of Nuclear Receptor Coactivators with Hypoxia-Inducible Factor-1a in the Serum of Patients with Chronic Kidney Disease. Biomed Res Int 2020:1587915 (2020). PubMed: 32884936
    • Gervin E  et al. Chemically Induced Hypoxia Enhances miRNA Functions in Breast Cancer. Cancers (Basel) 12:N/A (2020). PubMed: 32707933
    View all Publications for this product

    Customer reviews and Q&As

    Show All Reviews Q&A
    Submit a review Submit a question

    ab171577 - Human HIF-1-alpha ELISA Kit

    Average Excellent 5/5 (Ease of Use)
    Abreviews
    Abreviews
    abreview image
    I performed the determination of HiF 1 alpha on protein extracts from fresh tumor tissues and from tumor tissues frozen in order to verify if the method can be used in both situations.
    I followed the procedure as in the protocol, without making any changes.
    The standard curve was not reproducible with that of the datasheet and much lower values I obtained.
    The values obtained from the samples tested are too low to make any assumption.
    I attach scheme and values analysis.
    The reviewer received a reward from Abcam’s Loyalty Program in thanks for submitting this Abreview and for helping the scientific community make better-informed decisions.

    MISS. Rossella Galati

    Verified customer

    Submitted Mar 10 2016

    Please note: All products are "FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES"
    For licensing inquiries, please contact partnerships@abcam.com

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