p62/SQSTM1 Antibody [DyLight 755]

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Product Details

Summary
Reactivity Hu, Mu, Ca, Rt, PmSpecies Glossary
Applications WB, IHC, IHC-P
Clonality
Polyclonal
Host
Rabbit
Conjugate
DyLight 755

p62/SQSTM1 Antibody [DyLight 755] Summary

Immunogen
The immunogen for this product maps to a region between residue 325 and 375 of human p62/SQSTM1 using the numbering given in entry NP_003891.1 (GeneID 8878).
Predicted Species
Rat (100%), Primate (100%). Backed by our 100% Guarantee.
Isotype
IgG
Clonality
Polyclonal
Host
Rabbit
Gene
SQSTM1
Purity
Immunogen affinity purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Reactivity Notes

Canine reactivity reported in scientific literature (PMID: 29513363). Orangutan (100%).

Packaging, Storage & Formulations

Storage
Store at 4C in the dark.
Buffer
50mM Sodium Borate
Preservative
0.05% Sodium Azide
Purity
Immunogen affinity purified

Notes

Dylight (R) is a trademark of Thermo Fisher Scientific Inc. and its subsidiaries. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

Alternate Names for p62/SQSTM1 Antibody [DyLight 755]

  • A170
  • Autophagy Receptor P62
  • DMRV
  • EBI3-associated protein of 60 kDa
  • EBI3-associated protein p60
  • EBIAP
  • FTDALS3
  • NADGP
  • ORCA
  • OSIL
  • oxidative stress induced like
  • p60PDB3
  • p62
  • p62B
  • Paget disease of bone 3
  • PDB3
  • phosphotyrosine independent ligand for the Lck SH2 domain p62
  • Phosphotyrosine-independent ligand for the Lck SH2 domain of 62 kDa
  • Sequestosome 1
  • sequestosome-1
  • SQSTM1
  • Ubiquitin-binding protein p62
  • ZIP3

Background

p62/SQSTM1 (ubiquitin-binding protein p62/Sequestrosome-1) is an intracellular protein (theoretical molecular weight 47.7 kDa) which localizes to the cytoplasm, nucleus, autophagosomes and lysosomes in all tissues (1). Structurally, p62/SQSTM1 consists of multiple domains (e.g., Phox1 and Bem1p-PB1, zinc finger-ZZ, TRAF6 binding domain-TB, Keap1-interacting region-KIR, LC3 interacting region-LIR and ubiquitin-associated domain-UBA) for interaction with various protein targets. Additional domains include nuclear export (NES) and nuclear localization signals (NLS1 and NLS2). p62/SQSTM1 is a multifunctional scaffold protein which forms oligomers with itself or with other proteins through interactions with PB1 domains.

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 PCK lambda/iota 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

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Secondary Antibodies

 

Isotype Controls

Other Available Formats

Alexa Fluor 350 NBP1-49954AF350
Alexa Fluor 405 NBP1-49954AF405
Alexa Fluor 488 NBP1-49954AF488
Alexa Fluor 532 NBP1-49954AF532
Alexa Fluor 594 NBP1-49954AF594
Alexa Fluor 647 NBP1-49954AF647
Alexa Fluor 700 NBP1-49954AF700
Alexa Fluor 750 NBP1-49954AF750
Biotin NBP1-49954B
DyLight 350 NBP1-49954UV
DyLight 405 NBP1-49954V
DyLight 488 NBP1-49954G
DyLight 550 NBP1-49954R
DyLight 594 NBP1-49954DL594
DyLight 650 NBP1-49954C
DyLight 680 NBP1-49954FR
DyLight 755 NBP1-49954IR
FITC NBP1-49954F
HRP NBP1-49954H
Janelia Fluor 549 NBP1-49954JF549
Janelia Fluor 646 NBP1-49954JF646

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Bioinformatics

Gene Symbol SQSTM1