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AB51032

Anti-CTNNA1 antibody [EP1793Y]

  • BOND RX™ Validated
  • RabMAb
  • Recombinant
  • KO Validated
  • What is this?

5

(8 Reviews)

|

(43 Publications)

Rabbit Recombinant Monoclonal CTNNA1 antibody. Suitable for IHC-P, IP, WB and reacts with Mouse, Rat, Human samples. Cited in 43 publications.

View Alternative Names

Catenin alpha-1, Alpha E-catenin, Cadherin-associated protein, Renal carcinoma antigen NY-REN-13, CTNNA1

7 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

Paraffin-embedded human stomach tissue stained for CTNNA1 with ab51032 at a 1/100 dilution in immunohistochemical analysis. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as a secondary antibody and Hematoxylin used as a counterstain. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution 2) was performed for 20 minutes.

Positive staining was seen on human stomach.

The section was incubated with ab51032 for 30 minutes at room temperature.

The immunostaining staining was performed on a Leica Biosystems BOND® RX instrument.

Immunoprecipitation - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • IP

Unknown

Immunoprecipitation - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

ab190685 at 1/100 dilution immunoprecipitating CTNNA1 in Jurkat HeLa (human cervix adenocarcinoma epithelial cell) whole cell lysates
Lane 1 (input) : HeLa (human cervix adenocarcinoma epithelial cell) whole cell lysate 10μg
Lane 2 (+) : HeLa whole cell lysate
Lane 3 (-) : Rabbit monoclonal IgG (ab172730) instead of ab51032 in HeLa whole cell lysate
For western blotting, ab51032 at 1/500 dilution and VeriBlot for IP Detection Reagent (HRP)(ab131366) at 1/1000 dilution were used.

Blocking and diluting buffer : 5% NFDM /TBST.

All lanes:

Immunoprecipitation - Anti-CTNNA1 antibody [EP1793Y] (ab51032)

Predicted band size: 100 kDa

false

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

Paraffin-embedded mouse liver tissue stained for CTNNA1 with ab51032 at a 1/100 dilution in immunohistochemical analysis. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as a secondary antibody and Hematoxylin used as a counterstain. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution 2) was performed for 20 minutes.

Positive staining was seen on mouse liver.

The section was incubated with ab51032 for 30 minutes at room temperature.

The immunostaining staining was performed on a Leica Biosystems BOND® RX instrument.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

Paraffin-embedded rat stomach tissue stained for CTNNA1 with ab51032 at a 1/100 dilution in immunohistochemical analysis. Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as a secondary antibody and Hematoxylin used as a counterstain. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution 2) was performed for 20 minutes.

Positive staining was seen on rat stomach.

The section was incubated with ab51032 for 30 minutes at room temperature.

The immunostaining staining was performed on a Leica Biosystems BOND® RX instrument.

Western blot - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • WB

Unknown

Western blot - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

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.

All lanes:

Western blot - Anti-CTNNA1 antibody [EP1793Y] (ab51032)

Predicted band size: 100 kDa

false

Western blot - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • WB

Unknown

Western blot - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

Expsure time

Lane 1-4 : 180 seconds

Lane 5,7 : 40 seconds

Lane 6 : 5 seconds

Blocking/diluting buffer and concentration : 5% NFDM/TBST

All lanes:

Western blot - Anti-CTNNA1 antibody [EP1793Y] (ab51032) at 1/10000 dilution

Lane 1:

Mouse heart lysate at 20 µg

Lane 2:

Mouse kidney lysate at 20 µg

Lane 3:

Rat brain lysate at 20 µg

Lane 4:

Rat kidney lysate at 20 µg

Lane 5:

HeLa (Human cervix adenocarcinoma epithelial cell) whole cell lysate at 20 µg

Lane 6:

A431 (Human epidermoid carcinoma epithelial cell) whole cell lysate at 20 µg

Lane 7:

HUVEC (Human umbilical vein endothelial cell) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Predicted band size: 100 kDa

Observed band size: 100 kDa

false

Western blot - Anti-CTNNA1 antibody [EP1793Y] (AB51032)
  • WB

Unknown

Western blot - Anti-CTNNA1 antibody [EP1793Y] (AB51032)

All lanes:

Western blot - Anti-CTNNA1 antibody [EP1793Y] (ab51032) at 1/50000 dilution

All lanes:

Western blot - Recombinant Human CTNNA1 protein (Tagged) (<a href='/en-us/products/proteins-peptides/recombinant-human-ctnna1-protein-tagged-ab51443'>ab51443</a>) at 0.01 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-preadsorbed-ab97080'>ab97080</a>) at 1/5000 dilution

Predicted band size: 100 kDa

true

Exposure time: 1min

  • Carrier free

    Anti-CTNNA1 antibody [EP1793Y] - Low endotoxin, Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EP1793Y

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

IHC-P, WB, IP

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Product details

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

CTNNA1 also known as alpha-Catenin is an important protein that is involved in cell adhesion. With a molecular weight of about 100 kDa CTNNA1 functions mechanically by linking cadherins which are transmembrane proteins to the actin cytoskeleton in cells. This linkage strengthens cellular junctions and maintains the integrity of tissue architecture. CTNNA1 is widely expressed in epithelial tissues where strong cell-cell adhesion is important for maintaining tissue structure.
Biological function summary

CTNNA1 is important for maintaining cellular integrity and function. It is a part of the adherens junction complex which is critical for the creation of stable cell-cell junctions in tissues. Through the adherens junction it directly associates with E-cadherin and indirectly interacts with the actin cytoskeleton. This structural configuration allows epithelial cells to remain tightly connected facilitating signal transmission between cells for coordinated tissue functioning.

Pathways

CTNNA1 plays a significant role in the Wnt signaling pathway and the regulation of actin dynamics. In the Wnt pathway CTNNA1 is associated with cell fate determination and is known to interact with beta-catenin an important component of this signaling cascade. Additionally by influencing actin cytoskeleton organization CTNNA1 affects cell movement and signal transduction essential for processes like embryogenesis and wound healing.

Disruptions in CTNNA1 function have been linked to cancer and cardiomyopathy. The loss or mutation of CTNNA1 can lead to diminished cell adhesion promoting cancer cell invasion and metastasis often seen in gastric and breast cancers. Moreover its interaction with genes like KIF7 influences cardiomyopathy where structural cardiac tissue changes impair heart function. Understanding CTNNA1's role in these conditions can provide insight for potential therapeutic targets.

Product protocols

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

Target data

Associates 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. Involved in the regulation of WWTR1/TAZ, YAP1 and TGFB1-dependent SMAD2 and SMAD3 nuclear accumulation (By similarity). May play a crucial role in cell differentiation.
See full target information Catenin alpha-1

Publications (43)

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

Biomolecules 15: PubMed40867529

2025

High-Resolution Imaging and Interpretation of Three-Dimensional RPE Sheet Structure.

Applications

Unspecified application

Species

Unspecified reactive species

Kevin J Donaldson,Micah A Chrenek,Jeffrey H Boatright,John M Nickerson

Nature materials 24:966-976 PubMed40087537

2025

Force transmission is a master regulator of mechanical cell competition.

Applications

Unspecified application

Species

Unspecified reactive species

Andreas Schoenit,Siavash Monfared,Lucas Anger,Carine Rosse,Varun Venkatesh,Lakshmi Balasubramaniam,Elisabetta Marangoni,Philippe Chavrier,René-Marc Mège,Amin Doostmohammadi,Benoit Ladoux

Nature communications 16:1801 PubMed39979305

2025

Actin-dependent α-catenin oligomerization contributes to adherens junction assembly.

Applications

Unspecified application

Species

Unspecified reactive species

Regina B Troyanovsky,Indrajyoti Indra,Sergey M Troyanovsky

Communications biology 8:1 PubMed39747445

2025

Fortilin binds CTNNA3 and protects it against phosphorylation, ubiquitination, and proteasomal degradation to guard cells against apoptosis.

Applications

Unspecified application

Species

Unspecified reactive species

Mari Nakashima,Decha Pinkaew,Uttariya Pal,Fei Miyao,Hanna Huynh,Lena Tanaka,Ken Fujise

Nature communications 15:5608 PubMed38969637

2024

Alternative molecular mechanisms for force transmission at adherens junctions via β-catenin-vinculin interaction.

Applications

Unspecified application

Species

Unspecified reactive species

Nicole Morales-Camilo,Jingzhun Liu,Manuel J Ramírez,Patricio Canales-Salgado,Juan José Alegría,Xuyao Liu,Hui Ting Ong,Nelson P Barrera,Angélica Fierro,Yusuke Toyama,Benjamin T Goult,Yilin Wang,Yue Meng,Ryosuke Nishimura,Kedsarin Fong-Ngern,Christine Siok Lan Low,Pakorn Kanchanawong,Jie Yan,Andrea Ravasio,Cristina Bertocchi

Scientific reports 13:10956 PubMed37414830

2023

CYP4F12 is a potential biomarker and inhibits cell migration of head and neck squamous cell carcinoma via EMT pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Wenming Jia,Shuai Chen,Ran Wei,Xiaoqi Yang,Minfa Zhang,Ye Qian,Heng Liu,Dapeng Lei

Translational oncology 32:101655 PubMed36963204

2023

The mechanisms underlying the enrichment and action of glypican-1-positive exosomes in colorectal cancer cells.

Applications

Unspecified application

Species

Unspecified reactive species

Jian Li,Yuxiang Chen,Shuyi Yu,Mingmei Liao,Lin Zhou,Zeming Jia,Yaping Tang,Binwen Yuan

eLife 12: PubMed36892272

2023

Interplay of adherens junctions and matrix proteolysis determines the invasive pattern and growth of squamous cell carcinoma.

Applications

Unspecified application

Species

Unspecified reactive species

Takuya Kato,Robert P Jenkins,Stefanie Derzsi,Melda Tozluoglu,Antonio Rullan,Steven Hooper,Raphaël A G Chaleil,Holly Joyce,Xiao Fu,Selvam Thavaraj,Paul A Bates,Erik Sahai

The Journal of cell biology 222: PubMed36716168

2023

Hepatocyte apical bulkheads provide a mechanical means to oppose bile pressure.

Applications

Unspecified application

Species

Unspecified reactive species

Maarten P Bebelman,Matthew J Bovyn,Carlotta M Mayer,Julien Delpierre,Ronald Naumann,Nuno P Martins,Alf Honigmann,Yannis Kalaidzidis,Pierre A Haas,Marino Zerial

European journal of cell biology 101:151274 PubMed36152392

2022

Epithelial cell cluster size affects force distribution in response to EGF-induced collective contractility.

Applications

Unspecified application

Species

Unspecified reactive species

Chiara Zambarda,Carlos Pérez González,Andreas Schoenit,Nisha Veits,Clara Schimmer,Raimund Jung,Dirk Ollech,Joel Christian,Pere Roca-Cusachs,Xavier Trepat,Elisabetta Ada Cavalcanti-Adam
View all publications

Product promise

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