• Mouse KEAP1 (Kelch Like ECH Associated Protein 1) Sandwich ELISA Kit (STJE0010144)

Mouse KEAP1 (Kelch Like ECH Associated Protein 1) Sandwich ELISA Kit (STJE0010144)

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STJE0010144

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Applications: ELISA
Reactivity: Mouse
Note: STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS.
Sensitivity: 32pg/mL
Detection Limit: 78.1-5000pg/mL
Short Description: This KEAP1 Sandwich ELISA Kit is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in mouse cell culture supernatant, serum and plasma (EDTA, citrate, heparin).
Storage Instruction: Store the unopened kit in the fridge at 2-8°C for up to 6 months. Once opened store individual kit contents according to components table provided with the kit.
Assay Time: 4.5 hrs
Gene Symbol: Keap1
Gene ID: 50868
Uniprot ID: KEAP1_MOUSE
Sample Type: serum, plasma, tissue homogenates or other biological fluids.
Tissue Specificity
Post Translational Modifications Non-enzymatic covalent modifications of reactive cysteines by electrophile metabolites inactivate the BCR(KEAP1) complex. Accumulation of fumarate promotes the formation of cysteine S-succination (S-(2-succinyl)cysteine), leading to inactivate the BCR(KEAP1) complex and promote NFE2L2/NRF2 nuclear accumulation and activation. Nitric oxide-dependent 8-Nitro-cGMP formation promotes cysteine guanylation (S-cGMP-cysteine), leading to NFE2L2/NRF2 nuclear accumulation and activation. Itaconate, an anti-inflammatory metabolite generated in response to lipopolysaccharide, alkylates cysteines, activating NFE2L2/NRF2. Methylglyoxal, a reactive metabolite that accumulates when the glycolytic enzyme PGK1 is inhibited, promotes formation of a methylimidazole cross-link between proximal Cys-151 and Arg-135 on another KEAP1 molecule, resulting in an inactive dimer that inactivates the BCR(KEAP1) complex. Degraded via a proteasomal-independent process during selective autophagy: interaction with phosphorylated SQSTM1/p62 sequesters KEAP1 in inclusion bodies, leading to its degradation. Auto-ubiquitinated by the BCR(KEAP1) complex. Quinone-induced oxidative stress, but not sulforaphane, increases its ubiquitination. Ubiquitination and subsequent degradation is most pronounced following prolonged exposure of cells to oxidative stress, particularly in glutathione-deficient cells that are highly susceptible to oxidative stress.
Function Substrate-specific adapter of a BCR (BTB-CUL3-RBX1) E3 ubiquitin ligase complex that regulates the response to oxidative stress by targeting NFE2L2/NRF2 for ubiquitination. KEAP1 acts as a key sensor of oxidative and electrophilic stress: in normal conditions, the BCR(KEAP1) complex mediates ubiquitination and degradation of NFE2L2/NRF2, a transcription factor regulating expression of many cytoprotective genes. In response to oxidative stress, different electrophile metabolites trigger non-enzymatic covalent modifications of highly reactive cysteine residues in KEAP1, leading to inactivate the ubiquitin ligase activity of the BCR(KEAP1) complex, promoting NFE2L2/NRF2 nuclear accumulation and expression of phase II detoxifying enzymes. In response to selective autophagy, KEAP1 is sequestered in inclusion bodies following its interaction with SQSTM1/p62, leading to inactivation of the BCR(KEAP1) complex and activation of NFE2L2/NRF2. The BCR(KEAP1) complex also mediates ubiquitination of SQSTM1/p62, increasing SQSTM1/p62 sequestering activity and degradation. The BCR(KEAP1) complex also targets BPTF and PGAM5 for ubiquitination and degradation by the proteasome.
Protein Name Kelch-Like Ech-Associated Protein 1
Cytosolic Inhibitor Of Nrf2
Inrf2
Database Links Reactome: R-MMU-5689880
Reactome: -MMU-8951664
Reactome: -MMU-9755511
Reactome: -MMU-983168
Cellular Localisation Cytoplasm
Nucleus
Mainly Cytoplasmic
In Response To Selective Autophagy
Relocalizes To Inclusion Bodies Following Interaction With Sqstm1/P62
Alternative ELISA Names Kelch-Like Ech-Associated Protein 1 ELISA kit
Cytosolic Inhibitor Of Nrf2 ELISA kit
Inrf2 ELISA kit
Keap1 ELISA kit
Inrf2 ELISA kit
Kiaa0132 ELISA kit
output

Information sourced from Uniprot.org

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