• Human HIF1A (Hypoxia-inducible factor 1-alpha) Sandwich ELISA (STJE0004078)

Human HIF1A (Hypoxia-inducible factor 1-alpha) Sandwich ELISA (STJE0004078)

SKU:
STJE0004078

Shipping:
Free Shipping
Current Stock:
Applications: ELISA
Reactivity: Human
Note: FOR SCIENTIFIC EDUCATIONAL RESEARCH USE ONLY (RUO). MUST NOT BE USED IN DIAGNOSTIC OR OTHER MEDICAL APPLICATIONS.
Sensitivity: 37.5pg/mL
Detection Limit: 62.5~4000pg/mL
Short Description: This HIF1A Sandwich ELISA is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in human cell culture supernatant, serum and plasma (EDTA, citrate, heparin).
Storage Instruction: If unopened the kit may be stored at 2-8°C for up to 1 month. If the kit will not be used within 1 month, store the components separately, according to the component table in the manual.
Assay Time: 3.5h
Detection: Colormetric
Gene Symbol: HIF1A
Gene ID: 3091
Uniprot ID: HIF1A_HUMAN
Specificity: This kit recognizes Human HIF-1 Alpha in samples. No significant cross-reactivity or interference between Human HIF-1 Alpha and analogues was observed.
Sample Type: Serum, plasma and other biological fluids
Post Translational Modifications 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. Phosphorylation at Ser-247 by CSNK1D/CK1 represses kinase activity and impairs ARNT binding. Phosphorylation by GSK3-beta and PLK3 promote degradation by the proteasome. Sumoylated.with SUMO1 under hypoxia. Sumoylation is enhanced through interaction with RWDD3. Both sumoylation and desumoylation seem to be involved in the regulation of its stability during hypoxia. Sumoylation can promote either its stabilization or its VHL-dependent degradation by promoting hydroxyproline-independent HIF1A-VHL complex binding, thus leading to HIF1A ubiquitination and proteasomal degradation. Desumoylation by SENP1 increases its stability amd transcriptional activity. There is a disaccord between various publications on the effect of sumoylation and desumoylation on its stability and transcriptional activity (Probable). Acetylation of Lys-532 by ARD1 increases interaction with VHL and stimulates subsequent proteasomal degradation. Deacetylation of Lys-709 by SIRT2 increases its interaction with and hydroxylation by EGLN1 thereby inactivating HIF1A activity by inducing its proteasomal degradation. Polyubiquitinated.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. Ubiquitinated by E3 ligase VHL. Deubiquitinated by UCHL1. In normoxia, is hydroxylated on Pro-402 and Pro-564 in the oxygen-dependent degradation domain (ODD) by EGLN1/PHD2 and EGLN2/PHD1. 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. Repressed by iron ion, via Fe(2+) prolyl hydroxylase (PHD) enzymes-mediated hydroxylation and subsequent proteasomal degradation. The iron and 2-oxoglutarate dependent 3-hydroxylation of asparagine is (S) stereospecific within HIF CTAD domains. (Microbial infection) Glycosylated at Arg-18 by enteropathogenic E.coli protein NleB1: arginine GlcNAcylation enhances transcription factor activity and impairs glucose metabolism.
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, HILPDA, 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. Heterodimerizes with ARNT.heterodimer binds to core DNA sequence 5'-TACGTG-3' within the hypoxia response element (HRE) of target gene promoters. Activation requires recruitment of transcriptional coactivators such as CREBBP and EP300. Activity is enhanced by interaction with NCOA1 and/or NCOA2. Interaction with redox regulatory protein APEX1 seems to activate CTAD and potentiates activation by NCOA1 and CREBBP. Involved in the axonal distribution and transport of mitochondria in neurons during hypoxia. (Microbial infection) Upon infection by human coronavirus SARS-CoV-2, is required for induction of glycolysis in monocytes and the consequent pro-inflammatory state. In monocytes, induces expression of ACE2 and cytokines such as IL1B, TNF, IL6, and interferons. Promotes human coronavirus SARS-CoV-2 replication and monocyte inflammatory response.
Protein Name 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
Bhlhe78
Member Of Pas Protein 1
Pas Domain-Containing Protein 8
Database Links Reactome: R-HSA-1234158
Reactome: R-HSA-1234174
Reactome: R-HSA-1234176
Reactome: R-HSA-2122947
Reactome: R-HSA-400253
Reactome: R-HSA-5689880
Reactome: R-HSA-6785807
Reactome: R-HSA-8849473
Reactome: R-HSA-8857538
Reactome: R-HSA-8951664
Reactome: R-HSA-9701898
Cellular Localisation Cytoplasm
Nucleus
Nucleus Speckle
Colocalizes With Hif3a In The Nucleus And Speckles
Cytoplasmic In Normoxia
Nuclear Translocation In Response To Hypoxia
Alternative ELISA Names Hypoxia-Inducible Factor 1-Alpha ELISA kit
Hif-1-Alpha ELISA kit
Hif1-Alpha ELISA kit
Arnt-Interacting Protein ELISA kit
Basic-Helix-Loop-Helix-Pas Protein Mop1 ELISA kit
Class E Basic Helix-Loop-Helix Protein 78 ELISA kit
Bhlhe78 ELISA kit
Member Of Pas Protein 1 ELISA kit
Pas Domain-Containing Protein 8 ELISA kit
HIF1A ELISA kit
BHLHE78 ELISA kit
MOP1 ELISA kit
PASD8 ELISA kit
Specificity This kit recognizes Human HIF-1α in samples. No significant cross-reactivity or interference between Human HIF-1α and analogues was observed.
Reproducibility Both intra-CV and inter-CV are

Information sourced from Uniprot.org


Item Specifications Storage
Micro ELISA Plate (Dismountable) 96T: 8 wells ×12 strips strips -20℃, 6 months
Reference Standard 96T: 2 vials 48T: 1 vial -20℃, 6 months
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL 60 μL -20℃, 6 months
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL 60 μL -20℃ (Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL 2-8°C, 6 months
HRP Conjugate Diluent 1 vial, 14 mL 2-8°C, 6 months
Concentrated Wash Buffer (25×) 1 vial, 30 mL 2-8°C, 6 months
Substrate Reagent 1 vial, 10 mL 2-8℃ (Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 94-109 102
EDTA plasma (n=8) 99-109 104
Cell culture media (n=8) 101-112 105

Intra-assay Precision Intra-assay Precision Intra-assay Precision Inter-assay Precision Inter-assay Precision Inter-assay Precision
Sample 1.00 2.00 3.00 1.00 2.00 3.00
n 20.00 20.00 20.00 20.00 20.00 20.00
Mean (pg/mL) 177.29 422.96 1738.08 194.33 486.58 1980.59
Standard deviation 9.41 20.26 71.09 10.47 24.09 91.11
CV (%) 5.31 4.79 4.09 5.39 4.95 4.60
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance