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AB91526

Anti-SQSTM1 / p62 antibody - Autophagosome Marker

4

(7 Reviews)

|

(364 Publications)

Anti-SQSTM1 / p62 antibody (ab91526) is a rabbit polyclonal antibody detecting SQSTM1 / p62 in Western Blot, IHC-P, ICC/IF. Suitable for Human, Mouse, Rat.

- Over 280 publications
- Trusted since 2010

View Alternative Names

ORCA, OSIL, SQSTM1, Sequestosome-1, EBI3-associated protein of 60 kDa, Phosphotyrosine-independent ligand for the Lck SH2 domain of 62 kDa, Ubiquitin-binding protein p62, EBIAP, p60, p62

12 Images
Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • WB

Supplier Data

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

1 h incubation at RT in 5% NFDM/TBST.

beta-actin was used as a loading control at 1 µg/mL.

All lanes:

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (ab91526) at 1 µg/mL

Lane 1:

HEK293T WT cell lysates at 10 µg

Lane 2:

SQSTM1 KO HEK293T cell lysates at 10 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG HRP conjugate at 1/10000 dilution

Predicted band size: 47 kDa

false

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Immunohistochemical analysis of paraffin-embedded Human Spleen Tissue using anti-SQSTM1 antibody (ab91526) at 2 µg/ml. Tissue was fixed with formaldehyde and blocked with 10% serum for 1 h at RT; antigen retrieval was by heat mediation with a citrate buffer (pH6). Samples were incubated with primary antibody overnight at 4°C. A goat anti-rabbit IgG H&L (HRP) at 1/250 was used as secondary. Counter stained with Hematoxylin.

Immunocytochemistry/ Immunofluorescence - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Immunofluorescent analysis of PFA-fixed HeLa cells labeling SQSTM1 with ab91526 at 20 μg/mL, followed by goat anti-rabbit IgG secondary antibody at 1/1000 dilution (red) and Hoechst staining (blue). Alpha tubulin was stained with anti-alpha tubulin antibody following by goat anti-mouse IgG secondary antibody (green).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Rat spleen tissue stained for SQSTM1 / p62 using ab91526 at 5 μg/ml in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Immunofluorescent analysis of 4% paraformaldehyde fixed Mouse Spleen Tissue labeling SQSTM1 / p62 with ab91526 at 20 μg/mL, followed by goat anti-rabbit IgG secondary antibody at 1/500 dilution (green) and DAPI staining (blue).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Rat spleen tissue stained for SQSTM1 / p62 using ab91526 at 2 μg/ml in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • IHC-P

PubMed

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of mouse heart tissue labelling SQSTM1 / p62 with ab91526. Heat mediated antigen retrieval was performed. The tissue sections were then blocked with 10% goat serum in PBS, and incubated with primary antibody overnight at 4°C. Sections were incubated with secondary antibody for 1 h at room temperature, incubated with avidin-biotin complex for 1 h at room temperature, rinsed with PBS and then treated with 0.5 mg/mL DAPI.

Han, Z. et al PLoS One. 2014 Jan 23;9(1):e86838. doi: 10.1371/journal.pone.0086838. eCollection 2014 Reproduced under the Creative Commons license http://creativecommons.org/licenses/by/4.0/

Immunocytochemistry/ Immunofluorescence - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • ICC/IF

PubMed

Immunocytochemistry/ Immunofluorescence - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

ab91526 at a 1/500 dilution staining SQSTM1/ p62 in wild type murine embryonic fibroblasts by Immunocytochemistry/ Immunofluorescence.

Image from Traver MK et al, J Biol Chem. 2011 Sep 2;286(35):30471-80. Epub 2011 Jul 12, Fig 5. DOI 10.1074/jbc.M111.251967 September 2, 2011 The Journal of Biological Chemistry, 286, 30471-30480.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Immunohistochemical analysis of paraffin-embedded Mouse Spleen Tissue using anti-SQSTM1 antibody (ab91526) at 2 µg/ml. Tissue was fixed with formaldehyde and blocked with 10% serum for 1 h at RT; antigen retrieval was by heat mediation with a citrate buffer (pH6). Samples were incubated with primary antibody overnight at 4°C. A goat anti-rabbit IgG H&L (HRP) at 1/250 was used as secondary. Counter stained with Hematoxylin.

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • WB

Supplier Data

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Diluting buffer : 5% NFDM/TBST.

All lanes:

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (ab91526) at 0.5 µg/mL

Lane 1:

HEK-293 (human epithelial cell line from embryonic kidney) cell lysate at 15 µg

Lane 2:

A431 (human epidermoid carcinoma cell line) cell lysate at 15 µg

Lane 3:

A549 (human lung carcinoma cell line) cell lysate at 15 µg

Lane 4:

CaCo-2 (human colorectal adenocarcinoma cell line) cell lysate at 15 µg

Lane 5:

Daudi (human Burkitt's lymphoma cell line) cell lysate at 15 µg

Lane 6:

HeLa (human epithelial cell line from cervix adenocarcinoma) cell lysate at 15 µg

Lane 7:

HepG2 (human liver hepatocellular carcinoma cell line) cell lysate at 15 µg

Lane 8:

K562 (human chronic myelogenous leukemia cell line from bone marrow) cell lysate at 15 µg

Lane 9:

MCF7 (human breast adenocarcinoma cell line) cell lysate at 15 µg

Lane 10:

Jurkat (human T cell leukemia cell line from peripheral blood) cell lysate at 15 µg

Lane 11:

SK-N-SH (human neuroblastoma cell line) cell lysate at 15 µg

Lane 12:

THP-1 (human monocytic leukemia cell line) cell lysate at 15 µg

Lane 13:

NIH/3T3 (mouse embryo fibroblast cell line) cell lysate at 15 µg

Lane 14:

L1210 (mouse lymphocytic leukemia cell line) cell lysate at 15 µg

Secondary

All lanes:

Goat anti-rabbit IgG (HRP) at 1/10000 dilution

Predicted band size: 47 kDa

false

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • WB

Supplier Data

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

1 h incubation at RT in 5% NFDM/TBST

All lanes:

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (ab91526) at 0.2 µg/mL

Lane 1:

WT HeLa Cells at 10 µg

Lane 2:

SQSTM1 knockout HeLa Cells at 10 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG HRP conjugate at 1/10000 dilution

Predicted band size: 47 kDa

false

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)
  • WB

Supplier Data

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (AB91526)

Diluting buffer : 5% NFDM/TBST.

Raw 264.7 cells were treated with LPS (0.3 μg/mL) for different time period (0-24 hrs). There was an increase in SQSTM1 protein expression overtime after LPS treatment.

All lanes:

Western blot - Anti-SQSTM1 / p62 antibody - Autophagosome Marker (ab91526) at 0.5 µg/mL

Lane 1:

RAW 264.7 (mouse macrophage cell line transformed with Abelson murine leukemia virus) cell lysate - untreated at 15 µg

Lane 2:

RAW 264.7 (mouse macrophage cell line transformed with Abelson murine leukemia virus) cell lysate treated with 0.3 μg/mL LPS for 3 hours at 15 µg

Lane 3:

RAW 264.7 (mouse macrophage cell line transformed with Abelson murine leukemia virus) cell lysate treated with 0.3 μg/mL LPS for 6 hours at 15 µg

Lane 4:

RAW 264.7 (mouse macrophage cell line transformed with Abelson murine leukemia virus) cell lysate treated with 0.3 μg/mL LPS for 24 hours at 15 µg

Secondary

All lanes:

Goat anti-rabbit IgG (HRP) at 1/10000 dilution

Predicted band size: 47 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

ICC/IF, IHC-P, WB

applications

Immunogen

Synthetic Peptide within Human SQSTM1. The exact immunogen used to generate this antibody is proprietary information.

Q13501

Reactivity data

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Product details

Anti-SQSTM1 / p62 antibody (ab91526) is a rabbit polyclonal antibody and is validated for use in ICC/IF, IHC-P, WB in human samples.

Anti-SQSTM1 / p62 antibody (ab91526) has been cited over 282 times in peer reviewed journals and is trusted by the scientific community.

Abcam's high quality validation processes ensure Anti-SQSTM1 / p62 antibody (ab91526) has high sensitivity and specificity.

Anti-SQSTM1 / p62 antibody (ab91526) has 6 independent reviews from customers.

Anti-SQSTM1 / p62 antibody (Anti-ORCA antibody) (ab91526) specifically detects SQSTM1 / p62 (UniProt ID: Q13501; Molecular weight: 48kDa) and is sold in 100 µg selling sizes.

SQSTM1/p62 (Sequestosome 1) is a key protein involved in autophagy, serving as a bridge between ubiquitinated proteins and the autophagic machinery for their degradation. It is essential for maintaining cellular health and responding to stress. Abnormal p62 expression is associated with several diseases, including cancer, where it aids in tumor progression, and neurodegenerative diseases such as Alzheimer's (AD) and Parkinson's disease (PD), where it is involved in the formation of protein aggregates.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
pH: 7.2 Preservative: 0.02% Sodium azide Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Molecular adapter required for selective macroautophagy (aggrephagy) by acting as a bridge between polyubiquitinated proteins and autophagosomes (PubMed : 15340068, PubMed : 15953362, PubMed : 16286508, PubMed : 17580304, PubMed : 20168092, PubMed : 22017874, PubMed : 22622177, PubMed : 24128730, PubMed : 28404643, PubMed : 29343546, PubMed : 29507397, PubMed : 31857589, PubMed : 33509017, PubMed : 34471133, PubMed : 34893540, PubMed : 35831301, PubMed : 37306101, PubMed : 37802024). Promotes the recruitment of ubiquitinated cargo proteins to autophagosomes via multiple domains that bridge proteins and organelles in different steps (PubMed : 16286508, PubMed : 20168092, PubMed : 22622177, PubMed : 24128730, PubMed : 28404643, PubMed : 29343546, PubMed : 29507397, PubMed : 34893540, PubMed : 37802024). SQSTM1 first mediates the assembly and removal of ubiquitinated proteins by undergoing liquid-liquid phase separation upon binding to ubiquitinated proteins via its UBA domain, leading to the formation of insoluble cytoplasmic inclusions, known as p62 bodies (PubMed : 15911346, PubMed : 20168092, PubMed : 22017874, PubMed : 24128730, PubMed : 29343546, PubMed : 29507397, PubMed : 31857589, PubMed : 37802024). SQSTM1 then interacts with ATG8 family proteins on autophagosomes via its LIR motif, leading to p62 body recruitment to autophagosomes, followed by autophagic clearance of ubiquitinated proteins (PubMed : 16286508, PubMed : 17580304, PubMed : 20168092, PubMed : 22622177, PubMed : 24128730, PubMed : 28404643, PubMed : 37802024). SQSTM1 is itself degraded along with its ubiquitinated cargos (PubMed : 16286508, PubMed : 17580304, PubMed : 37802024). Also required to recruit ubiquitinated proteins to PML bodies in the nucleus (PubMed : 20168092). Also involved in autophagy of peroxisomes (pexophagy) in response to reactive oxygen species (ROS) by acting as a bridge between ubiquitinated PEX5 receptor and autophagosomes (PubMed : 26344566). Acts as an activator of the NFE2L2/NRF2 pathway via interaction with KEAP1 : interaction inactivates the BCR(KEAP1) complex by sequestering the complex in inclusion bodies, promoting nuclear accumulation of NFE2L2/NRF2 and subsequent expression of cytoprotective genes (PubMed : 20452972, PubMed : 28380357, PubMed : 33393215, PubMed : 37306101). Promotes relocalization of 'Lys-63'-linked ubiquitinated STING1 to autophagosomes (PubMed : 29496741). Involved in endosome organization by retaining vesicles in the perinuclear cloud : following ubiquitination by RNF26, attracts specific vesicle-associated adapters, forming a molecular bridge that restrains cognate vesicles in the perinuclear region and organizes the endosomal pathway for efficient cargo transport (PubMed : 27368102, PubMed : 33472082). Sequesters tensin TNS2 into cytoplasmic puncta, promoting TNS2 ubiquitination and proteasomal degradation (PubMed : 25101860). May regulate the activation of NFKB1 by TNF, nerve growth factor (NGF) and interleukin-1 (PubMed : 10356400, PubMed : 10747026, PubMed : 11244088, PubMed : 12471037, PubMed : 16079148, PubMed : 19931284). May play a role in titin/TTN downstream signaling in muscle cells (PubMed : 15802564). Adapter that mediates the interaction between TRAF6 and CYLD (By similarity).
See full target information SQSTM1

Publications (364)

Recent publications for all applications. Explore the full list and refine your search

Journal of biomedical science 32:89 PubMed40936093

2025

Ether-lipids accumulation promotes hepatocellular carcinoma progression linked to PPARα deficiency.

Applications

Unspecified application

Species

Unspecified reactive species

Pei-Yin Liao,Wen-Jen Lin,Pei-Chun Shen,Cian-Ru Yang,Ying-Chun Yu,Chun-Chieh Yeh,Long-Bin Jeng,Hsieh-Chou Lai,Wei-Chung Cheng,Wen-Lung Ma

Cancer immunology, immunotherapy : CII 74:287 PubMed40794185

2025

Cathepsin S regulates antitumor immunity through autophagic degradation of PD-L1 in colorectal cancer cells.

Applications

Unspecified application

Species

Unspecified reactive species

Sina Taheri Baghmisheh,Chung-Hsing Chen,Yu-Min Yeh,Peng-Chan Lin,Po-Chuan Chen,Ren-Hao Chan,Jui-Wen Kang,Chung-Ta Lee,Hui-Ju Tsai,Yu-Chen Fang,Chun Hei Antonio Cheung,Kwang-Yu Chang,Jang-Yang Chang,Shang-Hung Chen

Nature communications 16:5964 PubMed40593716

2025

Evaluating cell cycle- and autophagy-associated cellular accumulation of lipid-based nanoparticles.

Applications

Unspecified application

Species

Unspecified reactive species

Yisha Wang,Gan Luo,Haiyang Wang,Yue Zheng,Xiao Xu,Wenbin Zhou,Junrong Lin,Baocheng Chen,Yangfu Guo,Yifeng Jin,Meihua Sui

Journal of food and drug analysis 33:172-178 PubMed40592335

2025

Yiqi Yangyin Tongluo prescription targets lncRNA VIM-AS1 to regulate FOXK2/mTOR to promote autophagy and inhibit renal tubular epithelial cell apoptosis.

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Unspecified application

Species

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Rucui Yu,Ruiying Wu,Tingting Chen,Jingwei Xu

BMC biotechnology 25:53 PubMed40597910

2025

Evaluating the anticancer efficacy of Chara vulgaris ethanolic extract and selenium nanoformulation in Ehrlich carcinoma mice: role of autophagy and apoptosis.

Applications

Unspecified application

Species

Unspecified reactive species

Maha Alsunbul,Thanaa A El-Masry,Maisra M El-Bouseary,Enas I El Zahaby,Mostafa M El-Sheekh,Mohamed M S Gaballa,Eman Wahsh,Heba Kamel Badawy,Jawaher Abdullah Alamoudi,Reem ALQahtani,Naifa Alenazi,Maysa M F El-Nagar

Stem cells translational medicine 14: PubMed40558385

2025

Bone mesenchymal stem cells attenuate hepatic stellate cell activation and liver fibrosis through REDD1/autophagy pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Tingjuan Huang,Lina Nie,Haichao Diao,Ziyi Shang,Qizhi Shuai,Jun Xu,Jun Xie

Stem cell research & therapy 16:289 PubMed40483498

2025

Unveiling the potential of MSC extracellular vesicles: MiR-122-5p enhancing chondrocyte regeneration in osteoarthritis via autophagy mechanism.

Applications

Unspecified application

Species

Unspecified reactive species

Haifeng Zhang,Yanmeng Yang,Yingnan Wu,Vinitha Denslin,Yi Wei Justin Koh,Ling Liu,Wenhai Zhuo,Wing Moon Raymond Lam,Yinxian Yu,James Hoi Po Hui,Zheng Yang

Nature communications 16:5266 PubMed40480969

2025

Aging and diet alter the protein ubiquitylation landscape in the mouse brain.

Applications

Unspecified application

Species

Unspecified reactive species

Antonio Marino,Domenico Di Fraia,Diana Panfilova,Amit Kumar Sahu,Alberto Minetti,Omid Omrani,Emilio Cirri,Alessandro Ori

Aquaculture nutrition 2025:7688386 PubMed40343082

2025

Benfotiamine, a Lipid-Soluble Derivative of Vitamin B, Ameliorates the Carbohydrate Overload-Induced Mitochondrial Dysfunction in Fish by Triggering the ULK1-Mediated Mitophagy.

Applications

Unspecified application

Species

Unspecified reactive species

Ling Zhang,Chaofan He,Zishang Liu,Guangzhen Jiang,Wenbin Liu,Dingdong Zhang,Xiangfei Li

Stem cell research & therapy 16:218 PubMed40312745

2025

Puerarin relives inflammation, bone destruction and facilitates osteogenic differentiation in periodontitis by enhancing mitochondrial autophagy via activating mitochondrial Mitofusin 2.

Applications

Unspecified application

Species

Unspecified reactive species

Yulan Xiang,Zelu Li,Xin He,Xiaoyang Chu,Chunyan Gao,Jiahao Guo,Yingyi Luan,Kai Yang,Dongliang Zhang
View all publications

Product promise

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