- Tel: 858.663.9055
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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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Beta-catenin (CTNNB1) is a multifunctional protein that plays central roles in both cell adhesion and transcriptional regulation, functioning as a key effector of the Wnt signaling pathway and a structural component of cadherin-based adherens junctions. The Beta-Catenin Antibody / CTNNB1 Antibody is widely used to detect this dual-function protein across diverse biological systems, where it exhibits dynamic localization between the cytoplasm, nucleus, and cell membrane. CTNNB1 is encoded on chromosome 3p22.1 and belongs to the armadillo repeat protein family, characterized by multiple armadillo domains that mediate protein-protein interactions with cadherins, transcription factors, and regulatory complexes.
Beta-Catenin antibody, also referred to as CTNNB1 antibody and Catenin beta-1 antibody in the literature, recognizes a protein that integrates signaling and structural functions. At the plasma membrane, beta-catenin binds to E-cadherin and other classical cadherins, stabilizing cell-cell adhesion and maintaining epithelial tissue architecture. In this context, it anchors cadherin complexes to the actin cytoskeleton through interactions with alpha-catenin. Loss or redistribution of membranous beta-catenin is frequently associated with epithelial-to-mesenchymal transition and tumor progression, making CTNNB1 antibody detection valuable for studying changes in tissue organization.
In the cytoplasm, beta-catenin levels are tightly regulated by the destruction complex, which includes APC, AXIN, GSK3beta, and CK1. In the absence of Wnt signaling, beta-catenin undergoes phosphorylation-dependent degradation, maintaining low cytoplasmic levels. Upon Wnt pathway activation, this degradation is inhibited, leading to cytoplasmic accumulation and subsequent nuclear translocation. Within the nucleus, beta-catenin interacts with TCF/LEF transcription factors to regulate gene expression programs involved in proliferation, differentiation, and stem cell maintenance. This regulated shuttling between compartments highlights the importance of detecting CTNNB1 across multiple cellular contexts.
The recombinant rabbit monoclonal CTNNB1/2030R antibody is designed to detect beta-catenin expression with high specificity and consistency, supported by protein microarray specificity validation data that demonstrates selective binding to the intended target. This Beta-Catenin Antibody / CTNNB1 Antibody is suitable for detecting beta-catenin expression in a wide range of research applications where both structural and signaling roles are relevant. Its performance supports evaluation of subcellular localization patterns, including membranous staining in epithelial tissues and cytoplasmic or nuclear accumulation in signaling-active states.
Alterations in CTNNB1 are implicated in numerous cancers, including colorectal carcinoma, hepatocellular carcinoma, endometrial cancer, and melanoma. Mutations that stabilize beta-catenin or disrupt its regulation result in constitutive activation of Wnt signaling, contributing to oncogenesis. As a result, beta-catenin antibody detection is frequently used to assess pathway activation, tumor differentiation status, and disease progression. The ability to distinguish membranous versus nuclear localization further enhances its utility in cancer research and diagnostic pathology contexts. This antibody targets beta-catenin for research applications requiring reliable detection of CTNNB1 across adhesion and signaling states.
This antibody is part of a broader antibody panel offered by NSJ Bioreagents.
Titration of the Beta-Catenin Antibody / CTNNB1 Antibody may be required due to differences in protocols and secondary/substrate sensitivity.
1. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.
Human protein was used as the immunogen for the recombinant Beta-Catenin antibody.
Store the Beta-Catenin antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Beta-catenin antibody, CTNNB1 antibody, Catenin beta-1 antibody, Armadillo repeat protein antibody, Beta catenin protein antibody
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