Recombinant Anti-Clusterin antibody [EPR2911] (ab92548)
![Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)](https://www.abcam.com/ps/products/92/ab92548/Images/ab92548-297744-anti-clusterin-antibody-epr2911-western-blot.jpg "Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)")
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EPR2911] to Clusterin
- Suitable for: WB, IHC-P
- Knockout validated
- Reacts with: Human
Related conjugates and formulations
Overview
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Product name
Anti-Clusterin antibody [EPR2911]
See all Clusterin primary antibodies -
Description
Rabbit monoclonal [EPR2911] to Clusterin -
Host species
Rabbit -
Tested applications
Suitable for: WB, IHC-Pmore details -
Species reactivity
Reacts with: Human -
Immunogen
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
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Positive control
- IHC-P: human breast carcinoma and testis tissue; WB: human testis, brain, tonsil, fetal brain and plasma lysates.
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General notes
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free production
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA -
Concentration information loading... -
Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
EPR2911 -
Isotype
IgG -
Research areas
Associated products
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Alternative Versions
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Isotype control
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Recombinant Protein
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab92548 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Abreviews | Notes |
|---|---|---|
| WB | (1) |
1/1000 - 1/2000. Predicted molecular weight: 52 kDa.
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| IHC-P |
1/100 - 1/450. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
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| Notes |
|---|
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WB
1/1000 - 1/2000. Predicted molecular weight: 52 kDa. |
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IHC-P
1/100 - 1/450. Perform heat mediated antigen retrieval before commencing with IHC staining protocol. |
Target
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Function
Isoform 1 functions as extracellular chaperone that prevents aggregation of nonnative proteins. Prevents stress-induced aggregation of blood plasma proteins. Inhibits formation of amyloid fibrils by APP, APOC2, B2M, CALCA, CSN3, SNCA and aggregation-prone LYZ variants (in vitro). Does not require ATP. Maintains partially unfolded proteins in a state appropriate for subsequent refolding by other chaperones, such as HSPA8/HSC70. Does not refold proteins by itself. Binding to cell surface receptors triggers internalization of the chaperone-client complex and subsequent lysosomal or proteasomal degradation. Secreted isoform 1 protects cells against apoptosis and against cytolysis by complement. Intracellular isoforms interact with ubiquitin and SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes and promote the ubiquitination and subsequent proteasomal degradation of target proteins. Promotes proteasomal degradation of COMMD1 and IKBKB. Modulates NF-kappa-B transcriptional activity. Nuclear isoforms promote apoptosis. Mitochondrial isoforms suppress BAX-dependent release of cytochrome c into the cytoplasm and inhibit apoptosis. Plays a role in the regulation of cell proliferation. -
Tissue specificity
Detected in blood plasma, cerebrospinal fluid, milk, seminal plasma and colon mucosa. Detected in the germinal center of colon lymphoid nodules and in colon parasympathetic ganglia of the Auerbach plexus (at protein level). Ubiquitous. Detected in brain, testis, ovary, liver and pancreas, and at lower levels in kidney, heart, spleen and lung. -
Sequence similarities
Belongs to the clusterin family. -
Post-translational
modificationsIsoform 1 is proteolytically cleaved on its way through the secretory system, probably within the Golgi lumen.
Polyubiquitinated, leading to proteasomal degradation.
Heavily N-glycosylated. About 30% of the protein mass is comprised of complex N-linked carbohydrate. -
Cellular localization
Secreted. Can retrotranslocate from the secretory compartments to the cytosol upon cellular stress and Nucleus. Cytoplasm. Mitochondrion membrane. Cytoplasm, cytosol. Microsome. Endoplasmic reticulum. Cytoplasmic vesicle, secretory vesicle, chromaffin granule. Isoforms lacking the N-terminal signal sequence have been shown to be cytoplasmic and/or nuclear. Secreted isoforms can retrotranslocate from the secretory compartments to the cytosol upon cellular stress. Detected in perinuclear foci that may be aggresomes containing misfolded, ubiquitinated proteins. Detected at the mitochondrion membrane upon induction of apoptosis. - Information by UniProt
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Database links
- Entrez Gene: 1191 Human
- Omim: 185430 Human
- SwissProt: P10909 Human
- Unigene: 436657 Human
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Alternative names
- 40 antibody
- AAG 4 antibody
- AAG4 antibody
see all
Images
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Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)
Lane 1: Wild-type HAP1 whole cell lysate (20 µg)
Lane 2: Clusterin knockout HAP1 whole cell lysate (20 µg)
Lane 3: U87-MG whole cell lysate (20 µg)Lanes 1 - 3: Merged signal (red and green). Green - ab92548 observed at 68 kDa. Red - loading control, ab9484, observed at 37 kDa.
ab92548 was shown to recognize Clusterin in wild-type HAP1 cells as signal was lost at the expected MW in Clusterin knockout cells. Additional cross-reactive bands were observed in the wild-type and knockout cells. Wild-type and Clusterin knockout samples were subjected to SDS-PAGE. Ab92548 and ab9484 (Mouse anti-GAPDH loading control) were incubated overnight at 4°C at 1/1000 dilution and 1/20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.
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![Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Clusterin antibody [EPR2911] (ab92548)](https://www.abcam.com/ps/products/92/ab92548/Images/ab92548-5-anti-clusterin-antibody-epr2911-immunohistochemistry-breast-carcinoma-human.jpg)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Clusterin antibody [EPR2911] (ab92548)Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human breast carcinoma tissue sections labeling Clusterin with purified ab92548 at 1/450 dilution (0.23 µg/ml). Heat mediated antigen retrieval was performed using ab93684 (Tris/EDTA buffer, pH 9.0). ImmunoHistoProbe one step HRP Polymer (ready to use) was used as the secondary antibody. Negative control: PBS instead of the primary antibody. Hematoxylin was used as a counterstain.
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![Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)](https://www.abcam.com/ps/products/92/ab92548/Images/ab92548-351357-anti-clusterin-antibody-epr2911-westernblot-human.jpg)
Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)All lanes : Anti-Clusterin antibody [EPR2911] (ab92548) at 1/1000 dilution (Purified)
Lane 1 : Human testis lysates
Lane 2 : Human brain lysates
Lysates/proteins at 20 µg per lane.
Secondary
All lanes : Goat Anti-Rabbit IgG (HRP) with minimal cross-reactivity with human IgG at 1/2000 dilution
Predicted band size: 52 kDa
Observed band size: 37,68 kDa why is the actual band size different from the predicted?Clusterin precursor could be cleaved to produce an N-terminal α-chain and a C-terminal β-chain as was described by PMID: 25402950. ab92548 recognizes α-chain.
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![Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Clusterin antibody [EPR2911] (ab92548)](https://www.abcam.com/ps/products/92/ab92548/Images/ab92548-107699-anti-clusterin-antibody-epr2911-immunohistochemistry.jpg)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Clusterin antibody [EPR2911] (ab92548)ab92548 (unpurified) at 1/100 dilution staining Apolipoprotein J in Human testis tissue by Immunohistochemistry Formalin-fixed, Paraffin-embedded tissue.
Heat mediated antigen retrieval was performed before commencing with IHC staining protocol.
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![Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)](https://www.abcam.com/ps/products/92/ab92548/Images/ab92548-107700-anti-clusterin-antibody-epr2911-western-blot.jpg)
Western blot - Anti-Clusterin antibody [EPR2911] (ab92548)All lanes : Anti-Clusterin antibody [EPR2911] (ab92548) at 1/1000 dilution (unpurified)
Lane 1 : Human tonsil tissue lysate
Lane 2 : Fetal brain tissue lysate
Lane 3 : Human Plasma lysate
Lysates/proteins at 10 µg per lane.
Secondary
All lanes : HRP labelled goat anti-rabbit at 1/2000 dilution
Predicted band size: 52 kDa -
![Anti-Clusterin antibody [EPR2911] (ab92548)](https://www.abcam.com/ps/products/92/ab92548/Images/ab92548-7-benefits-of-recombinant-antibodies.png)
Anti-Clusterin antibody [EPR2911] (ab92548)
Protocols
Datasheets and documents
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SDS download
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Datasheet download
References (6)
ab92548 has been referenced in 6 publications.
- Huang Y et al. Reduced Expression of Antimicrobial Protein Secretory Leukoprotease Inhibitor and Clusterin in Chronic Rhinosinusitis with Nasal Polyps. J Immunol Res 2021:1057186 (2021). PubMed: 33506054
- Yuste-Checa P et al. The extracellular chaperone Clusterin enhances Tau aggregate seeding in a cellular model. Nat Commun 12:4863 (2021). PubMed: 34381050
- Praktiknjo SD et al. Tracing tumorigenesis in a solid tumor model at single-cell resolution. Nat Commun 11:991 (2020). PubMed: 32080185
- Bannai T et al. Chronic cerebral hypoperfusion shifts the equilibrium of amyloid ß oligomers to aggregation-prone species with higher molecular weight. Sci Rep 9:2827 (2019). PubMed: 30808940
- Keyvani K et al. Higher levels of kallikrein-8 in female brain may increase the risk for Alzheimer's disease. Brain Pathol 28:947-964 (2018). PubMed: 29505099
- Walters MS et al. Smoking accelerates aging of the small airway epithelium. Respir Res 15:94 (2014). IHC-P ; Human . PubMed: 25248511