Recombinant Human Nuclear Factor Erythroid 2-Related Factor 2 (NFE2L2) Protein (His)

Name: Recombinant Human Nuclear Factor Erythroid 2-Related Factor 2 (NFE2L2) Protein (His)
Brand: Beta LifeScience
SKU: BLC-07781P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Nuclear Factor Erythroid 2-Related Factor 2 (NFE2L2) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	Q16236
Target Symbol	NFE2L2
Synonyms	HEBP1 Nuclear factor, erythroid derived 2, like 2
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	MMDLELPPPGLPSQQDMDLIDILWRQDIDLGVSREVFDFSQRRKEYELEKQKKLEKERQEQLQKEQEKAFFAQLQLDEETGEFLPIQPAQHIQSETSGSANYSQVAHIPKSDALYFDDCMQLLAQTFPFVDDNEVSSATFQSLVPDIPGHIESPVFIATNQAQSPETSVAQVAPVDLDGMQQDIEQVWEELLSIPELQCLNIENDKLVETTMVPSPEAKLTEVDNYHFYSSIPSMEKEVGNCSPHFLNAFEDSFSSILSTEDPNQLTVNSLNSDATVNTDFGDEFYSAFIAEPSISNSMPSPATLSHSLSELLNGPIDVSDLSLCKAFNQNHPESTAEFNDSDSGISLNTSPSVASPEHSVESSSYGDTLLGLSDSEVEELDSAPGSVKQNGPKTPVHSSGDMVQPLSPSQGQSTHVHDAQCENTPEKELPVSPGHRKTPFTKDKHSSRLEAHLTRDELRAKALHIPFPVEKIINLPVVDFNEMMSKEQFNEAQLALIRDIRRRGKNKVAAQNCRKRKLENIVELEQDLDHLKDEKEKLLKEKGENDKSLHLLKKQLSTLYLEVFSMLRDEDGKPYSPSEYSLQQTRDGNVFLVPKSKKPDVKKN
Expression Range	1-605aa
Protein Length	Full Length
Mol. Weight	71.9 kDa
Research Area	Cardiovascular
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Transcription factor that plays a key role in the response to oxidative stress: binds to antioxidant response (ARE) elements present in the promoter region of many cytoprotective genes, such as phase 2 detoxifying enzymes, and promotes their expression, thereby neutralizing reactive electrophiles. In normal conditions, ubiquitinated and degraded in the cytoplasm by the BCR(KEAP1) complex. In response to oxidative stress, electrophile metabolites inhibit activity of the BCR(KEAP1) complex, promoting nuclear accumulation of NFE2L2/NRF2, heterodimerization with one of the small Maf proteins and binding to ARE elements of cytoprotective target genes. The NFE2L2/NRF2 pathway is also activated in response to selective autophagy: autophagy promotes interaction between KEAP1 and SQSTM1/p62 and subsequent inactivation of the BCR(KEAP1) complex, leading to NFE2L2/NRF2 nuclear accumulation and expression of cytoprotective genes. May also be involved in the transcriptional activation of genes of the beta-globin cluster by mediating enhancer activity of hypersensitive site 2 of the beta-globin locus control region. Plays also an important role in the regulation of the innate immune response and antiviral cytosolic DNA sensing. It is a critical regulator of the innate immune response and survival during sepsis by maintaining redox homeostasis and restraint of the dysregulation of proinflammatory signaling pathways like MyD88-dependent and -independent and TNF-alpha signaling. Suppresses macrophage inflammatory response by blocking proinflammatory cytokine transcription and the induction of IL6. Binds to the proximity of proinflammatory genes in macrophages and inhibits RNA Pol II recruitment. The inhibition is independent of the NRF2-binding motif and reactive oxygen species level. Represses antiviral cytosolic DNA sensing by suppressing the expression of the adapter protein STING1 and decreasing responsiveness to STING1 agonists while increasing susceptibility to infection with DNA viruses. Once activated, limits the release of pro-inflammatory cytokines in response to human coronavirus SARS-CoV-2 infection and to virus-derived ligands through a mechanism that involves inhibition of IRF3 dimerization. Also inhibits both SARS-CoV-2 replication, as well as the replication of several other pathogenic viruses including Herpes Simplex Virus-1 and-2, Vaccinia virus, and Zika virus through a type I interferon (IFN)-independent mechanism.
Subcellular Location	Cytoplasm, cytosol. Nucleus.
Protein Families	BZIP family, CNC subfamily
Database References	HGNC: 7782 OMIM: 600492 KEGG: hsa:4780 STRING: 9606.ENSP00000380252 UniGene: PMID: 30225719 HIF1A is upregulated in breast and bladder tumors with high NRF2 activity. NRF2 targets a functional antioxidant response element at the HIF1A locus, which reveals a direct regulatory connection between two important oxygen responsive transcription factors. PMID: 30241031 A core set of 32 direct NRF2 targets that are consistently upregulated in NRF2 hyperactivated tumors. PMID: 30195190 The expression of Nrf2-ARE molecules and related antioxidases is significantly decreased in patients with OSAHS and is correlated with neurocognitive dysfunction. PMID: 30159112 These results suggest that constitutive activation of Nrf2 might be linked with tumor aerobic glycolysis and progression of UTUC, indicating that Nrf2 signaling in the tumor microenvironment promotes progression of UTUC. PMID: 29716554 NRF2 is a transcription factor that robustly transduces chemical signals to regulate a battery of cytoprotective genes. KEAP1 represses NRF2 activity under quiescent conditions, whereas NRF2 is liberated from KEAP1-mediated repression on exposure to stresses. [review] PMID: 29717933 the ability of porphyra-334 and shinorine to dissociate Nrf2 from Keap1 was confirmed also by measurement of increased mRNA expression of Nrf2 targeted genes encoding oxidative stress defense proteins in primary skin fibroblasts prior and post UVR exposure. PMID: 30071261 NRF2, DJ1 and SRNX1 are commonly expressed in diffusely infiltrating astrocytomas and they can be used in predicting patient prognosis. PMID: 29441509 the present findings were the first to show that pterostilbene attenuated high glucose-induced central nervous system injury in vitro through the activation of Nrf2 signaling, displaying protective effects against mitochondrial dysfunction-derived oxidative stress. PMID: 28089584 In some breast cancer cells, xCT antiporter expression is upregulated through the antioxidant transcription factor Nrf2 and contributes to their requirement for glucose as a carbon source. PMID: 28429737 study provides support for the involvement of both NFE2L2 and PPARGC1alpha in Parkinson's disease susceptibility and progression, marginally and through pathways involving maneb and paraquat exposure. PMID: 29630901 Our data suggests a novel interaction between Nrf2 and ATF4 under oxidative and endoplasmic reticulum stress, thus drives specific enzymatic and non-enzymatic reactions of antioxidant mechanisms maintaining redox homeostasis. PMID: 29421327 The senescence-associated downregulation of NRF2 decreases endothelial glycolytic activity and stress tolerance both of which are restored after reinstating NRF2. PMID: 29986211 Aberrant Nrf2/Keap1 system integrity may affect self-defence mechanisms against oxidative stress in primary biliary cholangitis. PMID: 28333129 Inflammation, oxidative stress, and higher expression levels of Nrf2 and NQO1 proteins in the airways of women chronically exposed to biomass fuel smoke. PMID: 29363060 Data suggest that NRF2/NFE2L2 promotes breast cancer progression by enhancing glycolysis through co-activation of HIF1A; NRF2 and HIF1A mRNA and protein levels are significantly up-regulated in breast cancer cells as compared to benign breast epithelial cells. (NRF2/NFE2L2 = nuclear factor erythroid 2-related factor 2; HIF1A = hypoxia inducible factor 1 subunit alpha) PMID: 29275212 Results show that NRF2 expression is regulated by NRG1 in papillary thyroid cancer (PTC). PMID: 29901070 27-OH induced autophagy is dependent on the relation between nuclear factor erythroid 2 p45-related factor 2 (Nrf2)-dependent antioxidant response and p62. PMID: 29879549 evidence for a direct role of NRF2 in globin gene regulation PMID: 28473619 the CD44-NRF2 axis might be a promising therapeutic target for the control of stress resistance and survival of CD44(high) CSC population within breast tumors. PMID: 29729523 this study shows changes of NRF2 expression levels induced by cell-free DNA in different cell types PMID: 29743966 Metabolism-dependent clonal growth of HCT15 colorectal cancer cells was induced by Nrf2-dependent activation of MCT1-driven lactate exchange. PMID: 28846107 Here we present a proof-of-concept application for the rational design of an epitope-specific antibody binding with the target protein Keap1, by grafting pre-defined structural interaction patterns from the native binding partner protein, Nrf2, onto geometrically matched positions of a set of antibody scaffolds. The designed antibodies bind to Keap1 and block the Keap1-Nrf2 interaction in an epitope-specific way PMID: 28128368 This review focuses on some fundamental aspects of Nrf2 effects on redox systems, mitochondrial function, and proteostasis. [Review Article] PMID: 28424271 Therapeutic inhibition of Nrf2/ABCB1 signaling can be considered as a novel strategy. PMID: 29793178 The cross-talk between HIF1A, NRF2 and NF-kappaB is required to adapt to changes in oxygen availability. (Review) PMID: 29485192 The effect of lutein antiproliferation was mediated by activation of the NrF2/ARE pathway, and blocking of the NF-kappaB signaling pathway..lutein treatment decreased NF-kappaB signaling pathway related NF-kappaB p65 protein expression PMID: 29336610 Nuclear factor erythroid-2-related factor regulates LRWD1 expression and cellular adaptation to oxidative stress in human embryonal carcinoma cells PMID: 29544732 In human keratinocytes, authors found that perillaldehyde (1) inhibited BaP-induced AHR activation and ROS production, (2) inhibited BaP/AHR-mediated release of the CCL2 chemokine, and (3) activated the NRF2/HO1 antioxidant pathway. PMID: 29643980 Authors show that NRF2 regulates both basal and inducible expression of HER1, as treatment of ovarian cancer cells (PEO1, OVCAR3, and SKOV3) with NRF2 activator tBHQ inducing HER1, while inhibition of NRF2 by siRNA knockdown or with retinoid represses HER1. PMID: 29410730 Nrf2 deregulation has been linked to both aging and pathogenesis of many human chronic diseases, including neurodegenerative ones such as Parkinson's disease, Alzheimer's disease and amyotrophic lateral sclerosis. Nrf2 activity is tightly regulated by a fine balance between positive and negative modulators. PMID: 29969760 our results demonstrate that Pc-induced expression of HO-1 is mediated by the PKCA-Nrf-2/HO-1 pathway, and inhibits UVB-induced apoptotic cell death in primary skin cells. PMID: 29470442 our study emphasizes the discovery of a gene signature regulated by the KEAP1-NRF2-CUL3 axis which is strongly associated with tumorigenesis and drug resistance in head and neck squamous cell cancer . PMID: 29306329 Nrf2 overexpression was associated with tumor size, histological grade, and metastasis in gastric cancer patients. PMID: 29091877 Data (including data from studies using tissues/cells from transgenic mice) suggest that ChREBPalpha up-regulates expression and activity of NRF2, initiating mitochondrial biogenesis in beta-cells; induction of NRF2 is required for ChREBPalpha-mediated effects and for glucose-stimulated beta-cell proliferation. [ChREBP = carbohydrate-responsive element-binding protein] PMID: 29764859 The NFE2L2 promotor variant rs6721961 may be protective against hearing loss in cisplatin-receiving cancer patients by affecting NFE2L2 gene expression. PMID: 27457817 Following arachidin-1 pretreatment, the H2O2-induced generation of reactive oxygen species was reduced. Therefore, the present results indicate that arachidin-1 suppresses TNF-alpha-induced inflammation in ECs through the upregulation of Nrf-2-related phase II enzyme expression. PMID: 29115410 In the present review we briefly introduce the Nrf2-Keap1 system and describe Nrf2 functions, illustrate the Nrf2-NF-kappaB cross-talk, and highlight the effects of the Nrf2-Keap1 system in the physiology and pathophysiology of striated muscle tissue taking into account its role(s) in oxidative stress and reductive stress PMID: 29499228 In light of a pivotal role of NRF2 and BACH1 in response to oxidative stress and regulation of HO-1, we examined if smoke-induced HO-1 expression is modulated through the NRF2/BACH1 axis. We demonstrated that smoke causes significant nuclear translocation of NRF2, but only a slight decrease in nuclear BACH1. PMID: 29125538 Study found that NRF2 expression level was significantly of down-regulated in hepatic ischemia-reperfusion (HIR) model. PMID: 28708282 Enhanced BRAF-mediated NRF2 gene transcription and Histone Acetyltransferases-mediated NRF2 protein acetylation contributes to ABCC1-mediated chemoresistance and glutathione-mediated survival in acquired topoisomerase II poison-resistant cancer cells. PMID: 29080842 Respiratory syncytial virus induces NRF2 degradation through a PML-RNF4 pathway. PMID: 29107745 Results show that NRF2 activity is positively regulated by miR-432-3p through downregulation of KEAP1 inducing its stability in squamous cell carcinoma. PMID: 28760781 An intact complex of PGAM5-KEAP1-Nrf2 preserves mitochondrial motility by suppressing dominant-negative KEAP1 activity. PMID: 28839075 Hydrogen sulfide attenuates vascular smooth muscle cell calcification in vitro via the KEAP1-NRF2 redox sensing/stress response system by enhancing NQO1 expression. PMID: 28865326 5-hydroxyeicosatetraenoic acid and 5-hydroxyeicosapentaenoic acid were converted to 5-oxo-eicosatetraenoic acid (5-oxo-ETE) in HUVECs, and 5-oxo-ETE increased Nrf2 activation. These results suggest that 5-hydroxyeicosatetraenoic acid and 5-hydroxyeicosapentaenoic acid works as an Nrf2 activator through the metabolite 5-oxo-ETE in HUVECs. PMID: 28892009 The interplay between Nrf2 and VEGF can contribute to venous hypertension-induced angiogenesis in brain arteriovenous malformations pathogenesis. PMID: 27869147 High Nrf2 expression in alveolar type I pneumocytes is associated with low recurrences in primary spontaneous pneumothorax. PMID: 28962820 Here, the authors show that activation of NRF2, in either mouse or human cancer cells, leads to increased dependency on exogenous glutamine through increased consumption of glutamate for glutathione synthesis and glutamate secretion by xc(-) antiporter system. PMID: 28967864 PCR and western blot results showed that inhibiting the secretion of Wnt3A blocked the Wnt signaling pathway and prevented Nrf2 signaling. Notably, the Wnt inhibitor may serve as a radiosensitizing drug PMID: 28627706

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

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