Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EPR3127] to COPS3/CSN3
- Suitable for: WB, Flow Cyt, ICC/IF
- Reacts with: Mouse, Rat, Human
Product nameAnti-COPS3/CSN3 antibody [EPR3127]
See all COPS3/CSN3 primary antibodies
DescriptionRabbit monoclonal [EPR3127] to COPS3/CSN3
Tested applicationsSuitable for: WB, Flow Cyt, ICC/IFmore details
Unsuitable for: IHC-P
Species reactivityReacts with: Mouse, Rat, Human
Synthetic peptide within Human COPS3/CSN3 aa 400-500 (C terminal). The exact sequence is proprietary.
- HT29 cell lysate HeLa cells SKBR-3 cell lysate 293T cell lysate
This product was previously labelled as COPS3
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.
Reproducibility is key to advancing scientific discovery and accelerating scientists’ next breakthrough.
Abcam is leading the way with our range of recombinant antibodies, knockout-validated antibodies and knockout cell lines, all of which support improved reproducibility.
We are also planning to innovate the way in which we present recommended applications and species on our product datasheets, so that only applications & species that have been tested in our own labs, our suppliers or by selected trusted collaborators are covered by our Abpromise™ guarantee.
In preparation for this, we have started to update the applications & species that this product is Abpromise guaranteed for.
We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.
Applications & species from publications and Abreviews that have not been tested in our own labs or in those of our suppliers are not covered by the Abpromise guarantee.
Please check that this product meets your needs before purchasing. If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, as well as customer reviews and Q&As.
Storage instructionsShipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
Storage bufferpH: 7.20
Preservative: 0.05% Sodium azide
Constituents: 0.1% BSA, 40% Glycerol (glycerin, glycerine), 9.85% Tris glycine, 50% Tissue culture supernatant
Concentration information loading...
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab79698 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/10000 - 1/20000. Detects a band of approximately 48 kDa (predicted molecular weight: 48 kDa).|
|Flow Cyt||1/20 - 1/100.
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
|ICC/IF||1/250 - 1/500.|
FunctionComponent of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF-type complexes such as SCF, CSA or DDB2. The complex is also involved in phosphorylation of p53/TP53, c-jun/JUN, IkappaBalpha/NFKBIA, ITPK1 and IRF8/ICSBP, possibly via its association with CK2 and PKD kinases. CSN-dependent phosphorylation of TP53 and JUN promotes and protects degradation by the Ubl system, respectively.
Tissue specificityWidely expressed. Expressed at high level in heart and skeletal muscle.
Sequence similaritiesBelongs to the CSN3 family.
Contains 1 PCI domain.
Cellular localizationCytoplasm. Nucleus.
- Information by UniProt
- Constitutive photomorphogenic homolog subunit 3 antibody
- COP 9 (constitutive photomorphogenic) subunit 3 antibody
- COP 9 complex homolog subunit 3 antibody
All lanes : Anti-COPS3/CSN3 antibody [EPR3127] (ab79698) at 1/20000 dilution
Lane 1 : HT-29 cell lysate
Lane 2 : HeLa cell lysate
Lane 3 : SKBR-3 cell lysate
Lane 4 : 293T cell lysate
Lysates/proteins at 10 µg per lane.
All lanes : HRP labelled goat anti-rabbit at 1/2000 dilution
Predicted band size: 48 kDa
Observed band size: 48 kDa
Immunofluorescence staining of HeLa cells with purified ab79698 at a working dilution of 1/500, counter-stained with DAPI. The secondary antibody was an Alexa Fluor® 488 conjugated goat anti-rabbit (ab150077), used at a dilution of 1/1000. The cells were fixed in 4% PFA and permeabilized using 0.1% Triton X 100. The negative control is shown in bottom right hand panel - for the negative control, PBS was used instead of the primary antibody.
Overlay histogram showing HeLa cells stained with ab79698 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab79698, 1/100 dilution) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (ab96899) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in HeLa cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.
ab79698 has been referenced in 4 publications.
- Zarich N et al. The CSN3 subunit of the COP9 signalosome interacts with the HD region of Sos1 regulating stability of this GEF protein. Oncogenesis 8:2 (2019). PubMed: 30631038
- Zhang F et al. Novel oncogene COPS3 interacts with Beclin1 and Raf-1 to regulate metastasis of osteosarcoma through autophagy. J Exp Clin Cancer Res 37:135 (2018). PubMed: 29970115
- Füzesi-Levi MG et al. Dynamic regulation of the COP9 signalosome in response to DNA damage. Mol Cell Biol 34:1066-76 (2014). WB ; Human . PubMed: 24421388
- Korczeniewska J & Barnes BJ The COP9 signalosome interacts with and regulates interferon regulatory factor 5 protein stability. Mol Cell Biol 33:1124-38 (2013). PubMed: 23275442