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  • Additional protein information
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Product Includes Quantity Applications Reactivity MW(kDa) Isotype
SQSTM1/p62 (D5E2) Rabbit mAb 8025 20 µl
Western Blotting Immunoprecipitation
H Mk 62 Rabbit IgG
Optineurin (D2L8S) Rabbit mAb 58981 20 µl
Western Blotting
H 75 Rabbit IgG
NBR1 (D2E6) Rabbit mAb 9891 20 µl
Western Blotting Immunoprecipitation Immunofluorescence Flow Cytometry
H M 120 Rabbit IgG
NDP52 (D1E4A) Rabbit mAb 60732 20 µl
Western Blotting
H 52, 60 Rabbit IgG
TAX1BP1 (D1D5) Rabbit mAb 5105 20 µl
Western Blotting Immunoprecipitation
H 92 Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl
Western Blotting

Product Description

The SQSTM1/p62-like Receptor Antibody Sampler Kit provides an economical means of detecting members of the SQSTM1/p62-like Receptor (SLR) family. The kit includes enough antibody to perform two western blot experiments with each primary antibody.

Specificity / Sensitivity

Each antibody in the SQSTM1/p62-like Receptor Antibody Sampler Kit detects endogenous levels of its target protein. Based on sequence alignment, TAX1BP (D1D5) Rabbit mAb is predicted to react with TXBP151-L and TXBP151-S isoforms.

Source / Purification

Monoclonal antibodies are produced by immunizing rabbits with synthetic peptides corresponding to Gly162 of human SQSTM1/p62, Lys601 of human NBR1, Leu410 of human Optineurin, Val135 of NDP52, and residues near the carboxy terminus of human TAX1BP1.

Autophagy is a catabolic process for the autophagosome-lysosomal degradation of bulk cytoplasmic contents (1,2). Selective autophagy targets the degradation of distinct sets of substrates and organelles and can occur through the utilization of a number of autophagy cargo receptors (3-5). Autophagy cargo receptors contain an LC3-interacting region (LIR) required for interaction with Atg8/LC3 family members targeted to the autophagosome. SQSTM1/p62-like receptors (SLRs) are a family of autophagy cargo receptors that contain domains for binding to ubiquitin. This family includes prototypical member SQSTM1/p62, NBR1, NDP52, Optineurin, and TAX1BP1. Targets of SLRs include ubiquitylated protein aggregates (aggrephagy), organelles such as mitochondria (mitoophagy) and peroxisomes (pexophagy), and intracellular bacteria (xenophagy).

Upon binding of cargo to these receptors, the complex is delivered to the autophagosome where both the cargo and receptor are degraded through the autophagic process. While some redundancy may exist among SLR family members, they can have unique activities. Many SLRs can have additional roles as scaffolding proteins for various signaling pathways. For example, SQSTM1/p62 interacts with KEAP1, a cytoplasmic inhibitor of NRF2, a key transcription factor involved in cellular responses to oxidative stress (6). Thus, accumulation of SQSTM1/p62 can lead to an increase in NRF2 activity.

1.  Reggiori, F. and Klionsky, D.J. (2002) Eukaryot. Cell 1, 11-21.

2.  Codogno, P. and Meijer, A.J. (2005) Cell Death Differ. 12 Suppl 2, 1509-18.

3.  Birgisdottir, Å.B. et al. (2013) J Cell Sci 126, 3237-47.

4.  Xu, Z. et al. (2015) Acta Biochim Biophys Sin (Shanghai) 47, 571-80.

5.  Mancias, J.D. and Kimmelman, A.C. (2016) J Mol Biol 428, 1659-80.

6.  Komatsu, M. et al. (2010) Nat Cell Biol 12, 213-23.

Entrez-Gene Id 4077 , 10241 , 10133 , 8878 , 8887
Swiss-Prot Acc. Q14596 , Q13137 , Q96CV9 , Q13501 , Q86VP1

For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

SQSTM1/p62-like Receptor Antibody Sampler Kit