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AB184916

Anti-CTNNA3 antibody [EPR18307]

  • BOND RX™ Validated
  • 20ul selling size
  • Recombinant
  • Advanced Validation
  • RabMAb
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(3 Publications)

Rabbit Recombinant Monoclonal CTNNA3 antibody. Suitable for mIHC, IP, WB, IHC-P and reacts with Mouse, Human, Rat, Dog samples. Cited in 3 publications.

View Alternative Names

Catenin alpha-3, Alpha T-catenin, Cadherin-associated protein, CTNNA3

11 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Immunohistochemical analysis of paraffin-embedded Human cardiac muscle tissue labeling CTNNA3 with ab184916 at 1/2000 dilution followed by Goat Anti-Rabbit IgG H&L (HRP) (ab97051) secondary antibody at 1/500 dilution. Intercalated disks staining of normal Human cardiac muscle is observed. Counter stained with Hematoxylin.

Secondary antibody only control : Used PBS instead of primary antibody secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Multiplex immunohistochemistry - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • mIHC

Lab

Multiplex immunohistochemistry - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human cardiac muscle labelling Cardiac Troponin T with ab307152 at 1/5000 dilution (0.102 µg/mL) (B), CTNNA3 with ab184916 at 1/2000 dilution (0.942 μg/ml) (C) and PDystrophin with ab275391 at 1/500 dilution (2.08 μg/ml) (D). Opal Polymer HRP Ms + Rb was used as a secondary antibody, and DAPI was used for a nuclear counter stain. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins. Panel A : merged staining of anti-Dystrophin (red; Opal™690), anti-Cardiac troponin T (green; Opal™520) and anti-CTNNA3 (gray; Opal™570) on human cardiac muscle. Panel B : anti-Cardiac troponin T stained on cytoplasm of cardiac muscle. Panel C : anti-CTNNA3 stained on intercalated discs. Panel D : anti-Dystrophin stained on membrane of cardiac muscle. The section was incubated in three rounds of staining : in the order of ab275391, ab307152, and ab184916 for 30 mins at room temperature. Each round was followed by a separate fluorescent tyramide signal amplification system. The immunostaining was performed on a Leica Biosystems BOND® RX instrument with an Opal™ 4-color kit. Image acquisition was performed with Leica SP8 confocal microscope.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Immunohistochemical analysis of paraffin-embedded Human colon cancer tissue labeling CTNNA3 with ab184916 at 1/2000 dilution followed by Goat Anti-Rabbit IgG H&L (HRP) (ab97051) secondary antibody at 1/500 dilution. Cytoplasmic and membrane staining on tumor cells of Human colonic adenocarcinoma is observed. Counter stained with Hematoxylin.

Secondary antibody only control : Used PBS instead of primary antibody secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Immunoprecipitation - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • IP

Supplier Data

Immunoprecipitation - Anti-CTNNA3 antibody [EPR18307] (AB184916)

CTNNA3 was immunoprecipitated from 1mg of HEK-293 (Human epithelial cells from embryonic kidney) whole cell lysate with ab184916 at 1/100 dilution. Western blot was performed from the immunoprecipitate using ab184916 at 1/1000 dilution. Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG, was used as secondary antibody at 1/1500 dilution.

Lane 1 : HEK-293 whole cell lysate, 10 μg (Input).

Lane 2 : ab184916 IP in HEK-293 whole cell lysate.

Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab184916 in HEK-293 whole cell lysate.
Blocking and dilution buffer and concentration : 5% NFDM/TBST.

Exposure time : 1 second

All lanes:

Immunoprecipitation - Anti-CTNNA3 antibody [EPR18307] (ab184916)

Predicted band size: 100 kDa

false

Exposure time: 1s

Multiplex immunohistochemistry - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • mIHC

Lab

Multiplex immunohistochemistry - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Multiplex immunohistochemistry analysis of formalin/PFA-fixed paraffin-embedded Mouse cardiac muscle tissue staining Titin with ab307446 at a 1/1000 ( 0.475 µg/ml) dilution, CTNNA3 with ab184916 at 1/2000 ( 0.942 µg/ml) dilution and Dystrophin with ab218198 at 1/5000 ( 0.110 µg/ml) dilution.

Panel A : merged staining of anti-Titin (gray; Opal™570), anti-CTNNA3 (green; Opal™520) and anti-Dystrophin (magenta; Opal™690) on mouse cardiac muscle.
Panel B : anti-Titin staining nucleus and cytoplasm in mouse cardiac muscle.
Panel C : anti-CTNNA3 staining intercalated discs in mouse cardiac muscle.
Panel D : anti-Dystrophin staining membrane in mouse cardiac muscle.

Nuclear DNA was labeled with DAPI (shown in blue).

The section was incubated in three rounds of staining : in the order of ab307446, ab184916 and ab218198 for 30 mins at room temperature. Each round was followed by a separate fluorescent tyramide signal amplification system.

The immunostaining was performed on a Leica Biosystems BOND° RX instrument with an Opal™ 4-color kit. Image acquisition was performed with Leica SP8 confocal microscope.

Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0 epitope retrieval solution2) for 20 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Immunohistochemical analysis of paraffin-embedded Rat cardiac muscle tissue labeling CTNNA3 with ab184916 at 1/2000 dilution followed by Goat Anti-Rabbit IgG H&L (HRP) (ab97051) secondary antibody at 1/500 dilution. Intercalated disks staining on Rat cardiac muscle is observed. Counter stained with Hematoxylin.

Secondary antibody only control : Used PBS instead of primary antibody secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Immunohistochemical analysis of paraffin-embedded Mouse cardiac muscle tissue labeling CTNNA3 with ab184916 at 1/2000 dilution followed by Goat Anti-Rabbit IgG H&L (HRP) (ab97051) secondary antibody at 1/500 dilution. Intercalated disks staining on Mouse cardiac muscle is observed. Counter stained with Hematoxylin.

Secondary antibody only control : Used PBS instead of primary antibody secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • WB

Supplier Data

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Blocking/Dilution buffer : 5% NFDM/TBST.

All lanes:

Western blot - Anti-CTNNA3 antibody [EPR18307] (ab184916) at 1/5000 dilution

Lane 1:

Human fetal brain lysate at 10 µg

Lane 2:

Human fetal heart lysate at 10 µg

Lane 3:

Human fetal kidney lysate at 10 µg

Secondary

All lanes:

Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG at 1/1000 dilution

Predicted band size: 100 kDa

Observed band size: 100 kDa

false

Exposure time: 30s

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • WB

Supplier Data

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Blocking/Dilution buffer : 5% NFDM/TBST.

All lanes:

Western blot - Anti-CTNNA3 antibody [EPR18307] (ab184916) at 1/50000 dilution

Lane 1:

HEK-293 (Human epithelial cells from embryonic kidney) whole cell lysate at 20 µg

Lane 2:

C2C12 (Mouse myoblast cell line) whole cell lysate at 20 µg

Lane 3:

Rat1 (Rat fibroblast cell line) whole cell lysate at 20 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG, (H+L),Peroxidase conjugated at 1/1000 dilution

Predicted band size: 100 kDa

Observed band size: 100 kDa

false

Exposure time: 3min

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • WB

Supplier Data

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Blocking/Dilution buffer : 5% NFDM/TBST.

All lanes:

Western blot - Anti-CTNNA3 antibody [EPR18307] (ab184916) at 1/5000 dilution

Lane 1:

Mouse brain tissue lysate at 10 µg

Lane 2:

Mouse heart tissue lysate at 10 µg

Lane 3:

Rat brain tissue lysate at 10 µg

Lane 4:

Rat heart tissue lysate at 10 µg

Lane 5:

C6 (Rat glial tumor cells) whole cell lysate at 10 µg

Lane 6:

PC-12 (Rat adrenal gland pheochromocytoma) whole cell lysate at 10 µg

Lane 7:

NIH/3T3 (Mouse embyro fibroblast cells) whole cell lysate at 10 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/1000 dilution

Predicted band size: 100 kDa

Observed band size: 100 kDa

false

Exposure time: 1s

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)
  • WB

Supplier Data

Western blot - Anti-CTNNA3 antibody [EPR18307] (AB184916)

Blocking/Dilution buffer : 5% NFDM/TBST.

All lanes:

Western blot - Anti-CTNNA3 antibody [EPR18307] (ab184916) at 1/50000 dilution

All lanes:

MDCK (Canine kidney cell line) whole cell lysate at 10 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG, (H+L),Peroxidase conjugated at 1/1000 dilution

Predicted band size: 100 kDa

Observed band size: 100 kDa

false

Exposure time: 1s

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR18307

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Dog, Human

Applications

IP, mIHC, IHC-P, WB

applications

Immunogen

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

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "mIHC" : {"fullname" : "Multiplex immunohistochemistry", "shortname":"mIHC"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "mIHC-species-checked": "testedAndGuaranteed", "mIHC-species-dilution-info": "1/2000", "mIHC-species-notes": "<p>Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins.</p>", "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "1/100", "IP-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/2000", "IHCP-species-notes": "<p></p>" }, "Mouse": { "mIHC-species-checked": "testedAndGuaranteed", "mIHC-species-dilution-info": "1/2000", "mIHC-species-notes": "<p></p>", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/2000", "IHCP-species-notes": "<p></p>" }, "Rat": { "mIHC-species-checked": "guaranteed", "mIHC-species-dilution-info": "", "mIHC-species-notes": "", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/2000", "IHCP-species-notes": "<p></p>" }, "Dog": { "mIHC-species-checked": "guaranteed", "mIHC-species-dilution-info": "", "mIHC-species-notes": "", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "" } } }

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.

What are the advantages of a recombinant monoclonal antibody?
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 batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
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.

CTNNA3 also known as alpha-T-catenin is a protein that plays a significant role in cellular adhesion. Alpha-T-catenin belongs to the catenin family and has a mass of approximately 100 kDa. It interacts with the actin cytoskeleton by binding to beta-catenin at adherens junctions which are important for maintaining cell structures. The expression of CTNNA3 occurs mainly in cardiac and muscle tissues an indicator of its specialized function in the structure and function of these cell types.
Biological function summary

The protein functions as an important component in cellular adhesion linking cadherins to the actin cytoskeleton which impacts tissue stability and integrity. CTNNA3 forms a complex with cadherin-catenin a structure vital for maintaining strong cell-cell adhesion. The protein ensures that cells within cardiac and skeletal muscles maintain their structural coherence during mechanical stress playing an integral role in muscle function and structural integrity.

Pathways

Alpha-T-catenin contributes to the regulation of Wnt signaling and adherens junctions assembly. These pathways involve cell cycle regulation cellular adhesion and migration. Within these pathways CTNNA3 interacts with other proteins like beta-catenin and cadherins coordinating cell behavior and maintenance processes. The protein's activity in the Wnt signaling pathway helps manipulate gene expression which ultimately affects cellular proliferation and differentiation.

Aberrations in CTNNA3 are linked to specific cardiac and muscle conditions such as arrhythmogenic right ventricular cardiomyopathy (ARVC) and muscular dystrophies. Disrupted function or expression of alpha-T-catenin can lead to compromised cardiac cell adhesion contributing to the development of ARVC. Furthermore mutations or downregulations of CTNNA3 are associated with alterations in beta-catenin interaction leading to impaired cellular functions contributing to disease pathogenesis.

Product protocols

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

Target data

May be involved in formation of stretch-resistant cell-cell adhesion complexes.
See full target information Catenin alpha-3

Publications (3)

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

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 12:1703 PubMed33731717

2021

α-Catenin levels determine direction of YAP/TAZ response to autophagy perturbation.

Applications

Unspecified application

Species

Unspecified reactive species

Mariana Pavel,So Jung Park,Rebecca A Frake,Sung Min Son,Marco M Manni,Carla F Bento,Maurizio Renna,Thomas Ricketts,Fiona M Menzies,Radu Tanasa,David C Rubinsztein

PloS one 12:e0185062 PubMed28934278

2017

Intercalated disc in failing hearts from patients with dilated cardiomyopathy: Its role in the depressed left ventricular function.

Applications

Unspecified application

Species

Unspecified reactive species

Ana Ortega,Estefanía Tarazón,Carolina Gil-Cayuela,María García-Manzanares,Luis Martínez-Dolz,Francisca Lago,José Ramón González-Juanatey,Juan Cinca,Esther Jorge,Manuel Portolés,Esther Roselló-Lletí,Miguel Rivera
View all publications

Product promise

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For full details, please see our Terms & Conditions

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