p62/SQSTM1 Antibody [DyLight 755]

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Product Details

Summary
Reactivity Hu, Mu, RtSpecies Glossary
Applications WB, ICC/IF
Clonality
Polyclonal
Host
Rabbit
Conjugate
DyLight 755

p62/SQSTM1 Antibody [DyLight 755] Summary

Immunogen
A synthetic peptide made to an internal region of the human p62/SQSTM1 protein (within residues 350-400). [Swiss-Prot Q13501]
Localization
Cytoplasm. Late endosome. Nucleus.
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
  • Immunocytochemistry/Immunofluorescence
Application Notes
Optimal dilution of this antibody should be experimentally determined.

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.

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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Product General Protocols

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Video Protocols

WB Video Protocol
ICC/IF Video Protocol

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Secondary Antibodies

 

Isotype Controls

Other Available Formats

Alexa Fluor 350 NBP1-42821AF350
Alexa Fluor 405 NBP1-42821AF405
Alexa Fluor 488 NBP1-42821AF488
Alexa Fluor 532 NBP1-42821AF532
Alexa Fluor 594 NBP1-42821AF594
Alexa Fluor 647 NBP1-42821AF647
Alexa Fluor 700 NBP1-42821AF700
Alexa Fluor 750 NBP1-42821AF750
Biotin NBP1-42821B
DyLight 405 NBP1-42821V
DyLight 488 NBP1-42821G
DyLight 550 NBP1-42821R
DyLight 594 NBP1-42821DL594
DyLight 650 NBP1-42821C
DyLight 680 NBP1-42821FR
DyLight 755 NBP1-42821IR
FITC NBP1-42821F
HRP NBP1-42821H
Janelia Fluor 549 NBP1-42821JF549
Janelia Fluor 646 NBP1-42821JF646

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Bioinformatics Tool for p62/SQSTM1 Antibody (NBP1-42821IR)

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Blogs on p62/SQSTM1. Showing 1-10 of 23 blog posts - Show all blog posts.

Understanding Mitophagy Mechanisms: Canonical PINK1/Parkin, LC3-Dependent Piecemeal, and LC3-Independent Mitochondrial Derived Vesicles
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Autophagy Research Update: What a difference a year makes!
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Autophagy and Metastasis
  By Christina Towers, PhD The majority of cancer patients die from metastatic disease at secondary sites. The threshold to undergo metastasis is high. Only a minority of cancer cells acquire invasive phenotypes...  Read full blog post.

Optogenetic Control of Mitophagy: AMBRA1 based mitophagy switch
By Christina Towers, PhD Mitophagy in the BrainSelective autophagic degradation of damaged mitochondria, known as mitophagy, has been described as a cyto-protective process. Accordingly, defects in mitophagy h...  Read full blog post.

Autophagic flux: Is p62 a good indicator?
By Christina Towers, PhD Is p62 a good indicator of autophagic flux? The short answer: Yes … but … SQSTM1 encodes the cargo adaptor protein, p62, which interacts with autophagic substrates and delivers them to aut...  Read full blog post.

How to visualize autophagy by microscopy
By Christina Towers, PhD Autophagy is a recycling process that relies on the formation of a unique organelle termed an autophagosome. An elegant way to monitor autophagy is through various microscopy techniques to...  Read full blog post.

RNA-binding protein Staufen1 conspires with Atxn2 in stress granules to cause neurodegeneration by dysregulating RNA metabolism
By Jamshed Arslan Pharm.D. Spinocerebellar ataxia type 2 (SCA2) is a movement disorder characterized by neurodegeneration. The cause of this autosomal dominant disease is a mutation in the RNA processing gene Atxn2,...  Read full blog post.

How a cell "reaches" out for help
By Christina Towers, PhD. Parkinson's disease is a debilitating neurodegenerative condition defined by the accumulation of alpha-synuclein-containing (alpha-SYN) intra-cytoplasmic inclusions, called Lewy bodies. The...  Read full blog post.

Measuring Autophagic Flux with LC3 protein levels: The do's and don'ts
By Christina Towers, PhD. Autophagy is a dynamic cellular recycling process that can be influenced by many different external and internal stimuli. The most commonly used assay to measure autophagy is a western blot f...  Read full blog post.

Crosstalk Between Oxidative Stress and Autophagy
By Christina Towers, PhD. Role of Reactive Species in Cellular FunctionOxidative stress is a byproduct of an imbalance between oxidants and antioxidants present in the cell, resulting in dysfunctional redox si...  Read full blog post.

Showing 1-10 of 23 blog posts - Show all blog posts.
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Bioinformatics

Gene Symbol SQSTM1