Recombinant Human p62/SQSTM1 His Protein
Novus Biologicals, part of Bio-Techne | Catalog # NBP1-44490
Key Product Details
Source
E. coli
Tag
His
Conjugate
Unconjugated
Applications
Functional Assay, SDS-PAGE
Product Specifications
Description
A recombinant protein with a C-Terminal His-tag and corresponding to the amino acids 1-356 of Human p62/SQSTM1
Source: E.coli
Amino Acid Sequence: MAMSYVKDDI FRIYIKEKKE CRRDHRPPCA QEAPRNMVHP NVICDGCNGP VVGTRYKCSV CPDYDLCSVC EGKGLHRGHT KLAFPSPFGH LSEGFSHSRW LRKVKHGHFG WPGWEMGPPG NWSPRPPRAG EARPGPTAES ASGPSEDPSV NFLKNVGESV AAALSPLGIE VDIDVEHGGK RSRLTPVSPE SSSTEEKSSS QPSSCCSDPS KPGGNVEGAT QSLAEQMRKI ALESEGRPEE QMESDNCSGG DDDWTHLSSK EVDPSTGELQ SLQMPESEGP SSLDPSQEGP TGLKEAALYP HLPPEADPRL IESLSQMLSM GFSDEGGWLT RLLQTKNYDI GAALDTIQYS KHPPPLLEHH HHHH
Purity
>85%, by SDS-PAGE
Predicted Molecular Mass
39.7 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Protein / Peptide Type
Recombinant Protein
Scientific Data Images for Recombinant Human p62/SQSTM1 His Protein
![SDS-PAGE: Recombinant Human p62/SQSTM1 His Protein [NBP1-44490]](https://resources.bio-techne.com/images/products/Recombinant-Human-p62-SQSTM1-Protein-SDS-Page-NBP1-44490-img0003.jpg "SDS-PAGE: Recombinant Human p62/SQSTM1 His Protein [NBP1-44490]")
SDS-PAGE: Recombinant Human p62/SQSTM1 His Protein [NBP1-44490]
SDS-Page: Recombinant Human p62/SQSTM1 Protein [NBP1-44490] - p62/SQSTM1 Protein SQSTM1, 39.7 kDa (364aa), confirmed by MALDI-TOF with a purity of 90% by SDS - PAGEFormulation, Preparation and Storage
NBP1-44490
| Formulation | 20 mM Tris-HCl buffer (pH 8.0), 10% glycerol, 1 mM DTT |
| Preservative | No Preservative |
| Concentration | .5 mg/ml |
| Shipping | The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles. |
Background: p62/SQSTM1
Abnormal function of p62/SQSTM1 is associated with a range of disease states such as neurodegeneration, cancer, and metabolic disorders (2). Mutations in the p62/SQSTM1 sequence have been linked to Paget's disease of the bone, amyotrophic lateral sclerosis, and frontotemporal lobar degeneration. In Parkinson's disease, p62/SQSTM1 has been linked to microglia activation and subsequent neuroinflammation (3). Functionally, p62/SQSTM1 is involved in a broad range of cellular processes such as amino acid sensing by interaction with mTORC1, oxidative stress response through interaction with Keap1, and targeting cargo for autophagy by interacting with ubiquitin labeled proteins (1).
To induce selective autophagy, p62/SQSTM1 forms long oligomers or helical filaments which interact with LC3 and ubiquitin labeled proteins and lead to the initiation of the autophagosome formation (2). p62/SQSTM1 is not only a selective autophagy receptor but also an autophagy substrate, as its engulfed by the autophagosome and degraded by the autophagolysosome. Monitoring LC3 levels is the standard for assessing autophagic flux, however monitoring p62/SQSTM1 levels by Western blot in the presence and absence of autophagy inhibitors (e.g., Chloroquine) is also a common practice (4). Besides its activity as a selective autophagy receptor, p62/SQSTM1 also plays a role as an adaptor in signaling cascades leading to NFkB activation downstream of TNF-R, IL-1 beta R, TrkA and p75NTR. Briefly, for NFkB signaling downstream of the TNF-R activation, p62/SQSTM1 engages RIP1 kinase and PKC iota/lambda through the ZZ and PB1 domains, respectively (5).
References
1.Katsuragi, Y., Ichimura, Y., & Komatsu, M. (2015). P62/SQSTM1 functions as a signaling hub and an autophagy adaptor. FEBS Journal. https://doi.org/10.1111/febs.13540
2. Sanchez-Martin, P., & Komatsu, M. (2018). p62/SQSTM1 - Steering the cell through health and disease. Journal of Cell Science. https://doi.org/10.1242/jcs.222836
3. Yao, L., Zhu, Z., Wu, J., Zhang, Y., Zhang, H., Sun, X., ... Lu, G. (2019). MicroRNA-124 regulates the expression of p62/p38 and promotes autophagy in the inflammatory pathogenesis of Parkinson's disease. The FASEB Journal. https://doi.org/10.1096/fj.201900363r
4 Klionsky, D. J., Abdelmohsen, K., Abe, A., Abedin, M. J., Abeliovich, H., Arozena, A. A., ... Zughaier, S. M. (2016). Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition). Autophagy. https://doi.org/10.1080/15548627.2015.1100356
5. Bitto, A., Lerner, C. A., Nacarelli, T., Crowe, E., Torres, C., & Sell, C. (2014). p62/SQSTM1 at the interface of aging, autophagy, and disease. Age. https://doi.org/10.1007/s11357-014-9626-3
Long Name
Sequestosome 1
Alternate Names
A170, EBIAP, ORCA, OSIL, PDB3, Sequestosome 1, SQSTM1, ZIP3
Gene Symbol
SQSTM1
Additional p62/SQSTM1 Products
Product Documents for Recombinant Human p62/SQSTM1 His Protein
Product Specific Notices for Recombinant Human p62/SQSTM1 His Protein
This product is for research use only and is not approved for use in humans or in clinical diagnosis. This product is guaranteed for 1 year from date of receipt.
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