Product nameAnti-CTNNA1 antibody [EP1793Y]
See all CTNNA1 primary antibodies
DescriptionRabbit monoclonal [EP1793Y] to CTNNA1
Tested applicationsSuitable for: WB, IP, ICC/IF, Flow Cyt, IHC-Pmore details
Species reactivityReacts with: Mouse, Human
Predicted to work with: Rat
Synthetic peptide within Human CTNNA1 aa 1-100 (N terminal). The exact sequence is proprietary.
Database link: P35221
- WB: HeLa whole cell lysate. IHC-P: Human breast carcinoma tissue. ICC/IF: HeLa cells. Mouse ES cells. Flow Cytometry: MCF7 cells.
A trial size is available to purchase for this antibody.
This product was previously labelled as alpha 1 Catenin
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.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol, 0.5% BSA
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab51032 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/50000. Detects a band of approximately 100 kDa (predicted molecular weight: 100 kDa).|
|ICC/IF||1/100 - 1/250.|
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
|IHC-P||Use at an assay dependent concentration.|
FunctionAssociates with the cytoplasmic domain of a variety of cadherins. The association of catenins to cadherins produces a complex which is linked to the actin filament network, and which seems to be of primary importance for cadherins cell-adhesion properties. Can associate with both E- and N-cadherins. Originally believed to be a stable component of E-cadherin/catenin adhesion complexes and to mediate the linkage of cadherins to the actin cytoskeleton at adherens junctions. In contrast, cortical actin was found to be much more dynamic than E-cadherin/catenin complexes and CTNNA1 was shown not to bind to F-actin when assembled in the complex suggesting a different linkage between actin and adherens junctions components. The homodimeric form may regulate actin filament assembly and inhibit actin branching by competing with the Arp2/3 complex for binding to actin filaments. May play a crucial role in cell differentiation.
Tissue specificityExpressed ubiquitously in normal tissues.
Sequence similaritiesBelongs to the vinculin/alpha-catenin family.
Cellular localizationCell membrane and Cytoplasm > cytoskeleton. Cell junction > adherens junction. Cell membrane. Cell junction. Found at cell-cell boundaries and probably at cell-matrix boundaries.
- Information by UniProt
- Alpha E-catenin antibody
- Cadherin associated protein 102kDa antibody
- Cadherin associated protein antibody
Lane 1: Wild-type HAP1 whole cell lysate (20 µg)
Lane 2: CTNNA1 HAP1 whole cell lysate (20 µg)
Lane 3: HeLa whole cell lysate (20 µg)
Lane 4: HEK293 whole cell lysate (20 µg)
Lanes 1 - 4: Merged signal (red and green). Green - ab51032 observed at 100 kDa. Red - loading control, ab9484, observed at 37 kDa.
ab51032 was shown to recognize CTNNA1 in wild-type cells as signal was lost at the expected MW in CTNNA1 knockout cells. Additional cross-reactive bands were observed in the wild-type and knockout cells. Wild-type and CTNNA1 knockout samples were subjected to SDS-PAGE. Ab51032 and ab9484 (Mouse anti-GAPDH loading control) were incubated overnight at 4°C at 1/50000 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.
Paraffin-embedded human breast carcinoma tissue stained for CTNNA1 with ab51032 at a 1/100 dilution in immunohistochemical analysis.
ICC/IF image of ab51032 stained HeLa (Human epithelial cell line from cervix adenocarcinoma) cells. The cells were fixed in 4% formaldehyde (10 minutes) and then incubated in 1% BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1 hour to permeabilize the cells and block non-specific protein-protein interactions. The cells were then incubated with the primary antibody (ab51032, 1 µg/ml) overnight at +4°C. The secondary antibody (green) was anti-rabbit Alexa Fluor® 488 (IgG H+L; ab150077) used at a 1/1000 dilution for 1 hour. An Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1 hour. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43 µM.
Anti-CTNNA1 antibody [EP1793Y] (ab51032) at 1/50000 dilution + HeLa (Human epithelial cell line from cervix adenocarcinoma) cell lysate at 10 µg
Goat anti-Rabbit-HRP at 1/2000 dilution
Predicted band size: 100 kDa
Observed band size: 100 kDa
ICC/IF image of anti-CTNNA1 antibody [EP1793Y] (ab51032) stained mouse ES cells. The cells were fixed in 1:1 methanol/acetone, permeabilized using 0.1% Triton X, and blocked with 1% serum in PBS for 30 minutes. The cells were then incubated with ab51032 at a 1/100 dilution for 16 hours at 4oC. The secondary antibody was a Goat Anti-Rabbit Alexa Fluor® 488 (IgG H&L; ab150077) used at a 1/500 dilution.
Overlay histogram showing MCF7 (Human breast adenocarcinoma cell line) cells stained with ab51032 (red line). The cells were fixed with 4% PFA (10 minutes) and then permeabilized with 0.1% PBS-Tween for 20 minutes. 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 primary antibody (ab51032, 1/100 dilution) for 30 minutes at 22ºC. The secondary antibody used was goat anti-rabbit DyLight® 488 (IgG H+L) ab96899 at 1/500 dilution for 30 minutes at 22ºC. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1 µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.
This antibody gave a positive signal in MCF7 cells fixed with 80% methanol (5 minutes)/permeabilized in 0.1% PBS-Tween used under the same conditions.
Anti-CTNNA1 antibody [EP1793Y] (ab51032) at 1/50000 dilution +
Recombinant Human CTNNA1 protein (Tagged) (ab51443) at 0.01 µg
Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 100 kDa
Exposure time: 1 minute
This product has been referenced in:
- Raghu D et al. GALNT3 Maintains the Epithelial State in Trophoblast Stem Cells. Cell Rep 26:3684-3697.e7 (2019). Read more (PubMed: 30917321) »
- Förster S et al. Differential effects of a-catenin on the invasion and radiochemosensitivity of human colorectal cancer cells. Int J Oncol 52:1117-1128 (2018). Read more (PubMed: 29484367) »