Kelch Like ECH Associated Protein 1 Recombinant Protein | KEAP1 recombinant protein

Recombinant Kelch Like ECH Associated Protein 1 (KEAP1)

Cat. Num. AAA2030479

• Gene Names: KEAP1; INrf2; KLHL19
• Applications: SDS-Page, Western Blot, ELISA, Immunoprecipitation
• Purity: >90%
• Synonyms: Kelch Like ECH Associated Protein 1; Recombinant Kelch Like ECH Associated Protein 1 (KEAP1); KEAP1 recombinant protein

• Host: Host: E Coli; Source: Prokaryotic expression
• Purity/Purification: >90%
• Form/Format: Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl.
• Sequence: The target protein is fused with two N-terminal Tags, His-tag and T7-tag, its sequence is listed below.; LIYT AGGYFRQSLS YLEAYNPSDGTWLRLADLQV PRSGLAGCVV GGLLYAVGGR NNSPDGNTDS SALDCYNPMTNQWSPCAPMS VPRNRIGVGV IDGHIYAVGG SHGCIHHNSV ERYEPERDEWHLVAPMLTRR IGVGVAVLNR LLYAVGGFDG TNRLNSAECY YPERNEWRMITAMNTIRSGA GVCVLHNCIY AAGGYDGQDQ LNSVERYDVE TETWTFVAPMKHRRSALGIT VHQGRIYVLG GYDGHTFLDS VECYDPDTDT WSEVTRMTSGRSGVGVAVTM EPCRKQIDQQ NCTC
• Sequence Length: 624

• Applicable Applications for KEAP1 recombinant protein: SDS-PAGE, Western Blot (WB), ELISA (EIA), Immunoprecipitation (IP)
• Predicted Molecular Mass: 36.5kDa
• Accurate Molecular Mass (KD): 37kDa
• Endotoxin: <1.0EU per 1ug (determined by the LAL method)
• Expression System: Prokaryotic expression
• Tag: two N-terminal Tags, His-tag and S-tag
• Organism Species: Homo sapiens (Human)
• Fragment: Leu327~Cys624
• Usage: Reconstitute in sterile PBS, pH7.2-pH7.4.
• Preparation and Storage: Storage: Avoid repeated freeze/thaw cycles. Store at 2-8 degree C for one month. Aliquot and store at -80 degree C for 12 months.; Stability Test: The thermal stability is described by the loss rate of the targetprotein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37 degree C for 48h, and no obvious degradation andprecipitation were observed. The loss of this protein is less than 5% within the expiration date under appropriate storage condition.

SDS-Page

NCBI and Uniprot Product Information

• NCBI GI #: 22027642
• NCBI GeneID: 9817
• NCBI Accession #: NP_036421.2
• NCBI GenBank Nucleotide #: NM_012289.3
• Molecular Weight: 69,666 Da
• NCBI Official Full Name: kelch-like ECH-associated protein 1
• NCBI Official Synonym Full Names: kelch-like ECH-associated protein 1
• NCBI Official Symbol: KEAP1
• NCBI Official Synonym Symbols: INrf2; KLHL19
• NCBI Protein Information: kelch-like ECH-associated protein 1
• UniProt Protein Name: Kelch-like ECH-associated protein 1
• Protein Family: Kelch-like ECH-associated protein
• UniProt Gene Name: KEAP1
• UniProt Synonym Gene Names: INRF2; KIAA0132; KLHL19; INrf2
• UniProt Entry Name: KEAP1_HUMAN

NCBI Description

This gene encodes a protein containing KELCH-1 like domains, as well as a BTB/POZ domain. Kelch-like ECH-associated protein 1 interacts with NF-E2-related factor 2 in a redox-sensitive manner and the dissociation of the proteins in the cytoplasm is followed by transportation of NF-E2-related factor 2 to the nucleus. This interaction results in the expression of the catalytic subunit of gamma-glutamylcysteine synthetase. Two alternatively spliced transcript variants encoding the same isoform have been found for this gene. [provided by RefSeq, Jul 2008]

Uniprot Description

KEAP1: a substrate adapter protein for the E3 ubiquitin ligase complex formed by CUL3 and RBX1. Has tumor suppressor activity. Retains NRF2, BPTF and PGAM5 in the cytosol. Targets NRF2 for ubiquitination and degradation by the proteasome, thus resulting in the suppression of its transcriptional activity and of antioxidant response element-mediated detoxifying enzyme gene expression. Somatic mutations of KEAP1 or NRF2 commonly occur in solid cancers, irrespective of histological type, resulting in the constitutive transcription of cytoprotective genes. Genetic disruption of the KEAP1/CUL3 E3 ubiquitin ligase complex leads to the activation of the NF-kappaB pathway in lung cancer. Alternative activation of the cytoprotective NRF2 pathway exist in the absence of mutations in KEAP1 and HRF2: WTX, PALB2, SQSTM1, and DPP3 can competitively bind KEAP1. These proteins and others that bind KEAP1 contain an ¿ETGE¿ amino acid motif, which matches the KEAP1 interaction motif found in NRF2. Binding of these ¿ETGE¿-containing proteins can displace NRF2, freeing it to translocate to the nucleus and implement its cytoprotective transcriptional pathway. The DPP3 gene is frequently overexpressed in squamous cell lung carcinomas with high wt NRF2 activity. Its expression level significantly correlates with the response rate and progression-free survival of platinum-based first-line chemotherapy. May be a useful biomarker for predicting the chemosensitivity of patients with advanced-stage NSCLC. Broadly expressed, with highest levels in skeletal muscle. Ubiquitination and subsequent degradation of PGAM5 is inhibited by oxidative stress and sulforaphane.

Protein type: Motility/polarity/chemotaxis; Transcription regulation; Endoplasmic reticulum; Ubiquitin conjugating system

Chromosomal Location of Human Ortholog: 19p13.2

Cellular Component: nucleoplasm; endoplasmic reticulum; cytoplasm; microtubule organizing center; midbody; cytosol

Molecular Function: protein binding; transcription factor binding

Biological Process: transcription, DNA-dependent; in utero embryonic development; positive regulation of proteasomal ubiquitin-dependent protein catabolic process; negative regulation of transcription factor activity; proteasomal ubiquitin-independent protein catabolic process; protein ubiquitination; regulation of epidermal cell differentiation