Key features and details
- HRP Rabbit monoclonal [EP1215Y] to HIF-1 alpha
- Suitable for: WB
- Reacts with: Human
- Conjugation: HRP
Product nameHRP Anti-HIF-1 alpha antibody [EP1215Y]
See all HIF-1 alpha primary antibodies
DescriptionHRP Rabbit monoclonal [EP1215Y] to HIF-1 alpha
Tested applicationsSuitable for: WBmore details
Species reactivityReacts with: Human
within Human HIF-1 alpha aa 600-700 (C terminal). The exact sequence is proprietary.
Database link: Q16665
- WB : HeLa DFO treated nuclear lysate.
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free production
Storage instructionsShipped 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.
Dissociation constant (KD)KD = 2.24 x 10 -10 M Learn more about KD
Storage bufferpH: 7.40
Preservative: 0.1% 10% Proclin 300 Solution
Constituents: PBS, 30% Glycerol, 1% BSA
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab205833 in the following tested applications.
|WB||1/10000. Detects a band of approximately 100 kDa (predicted molecular weight: 92 kDa).
Can be blocked with HIF-1-alpha peptide (ab205542).
Ensure cell lysis occurs quickly if removed from hypoxia. Ultrasonic lysis is recommended to enrich more nuclear lysate.
Positive Control: Hypoxic samples such as HeLa-DFO treated whole cell lysate ab116322. For a stronger signal, HeLa-DFO treated nuclear extracts are recommended ab180880. The cell fractionation kit can also be purchased separately ab109719. Negative Control: Most normal tissues or cells, other than kidney or heart.
The observed band size of HIF-1 alpha is not exactly as predicted due to the different forms of HIF-1 alpha below:
FunctionFunctions 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 specificityExpressed 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 similaritiesContains 1 basic helix-loop-helix (bHLH) domain.
Contains 1 PAC (PAS-associated C-terminal) domain.
Contains 2 PAS (PER-ARNT-SIM) domains.
DomainContains two independent C-terminal transactivation domains, NTAD and CTAD, which function synergistically. Their transcriptional activity is repressed by an intervening inhibitory domain (ID).
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 localizationCytoplasm. Nucleus. Cytoplasmic in normoxia, nuclear translocation in response to hypoxia. Colocalizes with SUMO1 in the nucleus, under hypoxia.
- Information by UniProt
- ARNT interacting protein antibody
- ARNT-interacting protein antibody
- Basic helix loop helix PAS protein MOP1 antibody
All lanes : HRP Anti-HIF-1 alpha antibody [EP1215Y] (ab205833) at 1/10000 dilution
Lane 1 : HeLa (Human epithelial carcinoma cell line) Nuclear Lysate
Lane 2 : Hela-DFO treated (0.5mM, 24h) Nuclear Lysate
Lysates/proteins at 20 µg per lane.
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 92 kDa
Observed band size: 100 kDa why is the actual band size different from the predicted?
Exposure time: 12 minutes
This blot was produced using a 4-12% Bis-tris gel under the MOPS buffer system. The gel was run at 200V for 50 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 3% milk before being incubated with ab205833 overnight at 4°C. Antibody binding was visualised using ECL development solution ab133406.
ab205833 has not yet been referenced specifically in any publications.