Alexa Fluor® 647 Anti-HIF-1 alpha antibody [H1alpha67] (ab203848)
![Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-HIF-1 alpha antibody [H1alpha67] (ab203848)](https://www.abcam.com/ps/products/203/ab203848/Images/ab203848-280903-anti-hif-1-alpha-antibody-h1alpha67-alexa-fluor-647-immunofluorescence.jpg "Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-HIF-1 alpha antibody [H1alpha67] (ab203848)")
Key features and details
- Alexa Fluor® 647 Mouse monoclonal [H1alpha67] to HIF-1 alpha
- Suitable for: ICC/IF
- Reacts with: Human
- Conjugation: Alexa Fluor® 647. Ex: 652nm, Em: 668nm
- Isotype: IgG2b
Related conjugates and formulations
Overview
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Product name
Alexa Fluor® 647 Anti-HIF-1 alpha antibody [H1alpha67]
See all HIF-1 alpha primary antibodies -
Description
Alexa Fluor® 647 Mouse monoclonal [H1alpha67] to HIF-1 alpha -
Host species
Mouse -
Conjugation
Alexa Fluor® 647. Ex: 652nm, Em: 668nm -
Tested applications
Suitable for: ICC/IFmore details -
Species reactivity
Reacts with: Human
Predicted to work with: Mouse, Rat, Sheep, Rabbit, Cow, Pig, Ferret, Monkey
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Immunogen
Recombinant fragment. This information is proprietary to Abcam and/or its suppliers.
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Positive control
- ICC/IF: HeLa cells treated with DFO (1mM, 24 hours)
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General notes
Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.
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Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle. Store In the Dark. -
Storage buffer
pH: 7.40
Preservative: 0.02% Sodium azide
Constituents: PBS, 1% BSA, 30% Glycerol (glycerin, glycerine) -
Concentration information loading... -
Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
H1alpha67 -
Isotype
IgG2b -
Research areas
Associated products
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Alternative Versions
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Positive Controls
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Recombinant Protein
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Related Products
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab203848 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Abreviews | Notes |
|---|---|---|
| ICC/IF |
1/1000.
This product gave a positive signal in HeLa cells treated with DFO (1mM, 24 hours) fixed with 4% formaldehyde (10 min) |
| Notes |
|---|
|
ICC/IF
1/1000. This product gave a positive signal in HeLa cells treated with DFO (1mM, 24 hours) fixed with 4% formaldehyde (10 min) |
Target
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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
modificationsIn 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. - Information by UniProt
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Database links
- Entrez Gene: 281814 Cow
- Entrez Gene: 3091 Human
- Entrez Gene: 15251 Mouse
- Entrez Gene: 396696 Pig
- Entrez Gene: 100009579 Rabbit
- Entrez Gene: 29560 Rat
- Entrez Gene: 443519 Sheep
- Omim: 603348 Human
see all -
Alternative names
- ARNT interacting protein antibody
- ARNT-interacting protein antibody
- Basic helix loop helix PAS protein MOP1 antibody
see all
Images
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Immunocytochemistry/ Immunofluorescence - Alexa Fluor® 647 Anti-HIF-1 alpha antibody [H1alpha67] (ab203848)
ab203848 staining HIF-1-alpha in HeLa cells +/- DFO (1mM, 24 hours). The cells were fixed with 4% formaldehyde (10 min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated overnight at +4°C with ab203848 at 1/1000 dilution (shown in red) and ab195887, Mouse monoclonal to alpha Tubulin (Alexa Fluor® 488), at 1/250 dilution (shown in green). Nuclear DNA was labelled with DAPI (shown in blue).
Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).
Protocols
Datasheets and documents
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Datasheet download
References (2)
ab203848 has been referenced in 2 publications.
- Zhou P et al. circRNA_100859 functions as an oncogene in colon cancer by sponging the miR-217-HIF-1a pathway. Aging (Albany NY) 12:13338-13353 (2020). PubMed: 32644049
- Zhang P et al. ASAP3 is a downstream target of HIF-1a and is critical for progression of lung adenocarcinoma. Onco Targets Ther 12:5793-5803 (2019). PubMed: 31410024
