Anti-beta-Catenin Antibody

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Anti-beta-Catenin Antibody (Rabbit Polyclonal antibody) General Information

Product name
Anti-beta-Catenin Antibody
Validated applications
ELISA,IHC-P
Species reactivity
Reacts with: Human
Specificity
Human beta-Catenin
Immunogen
Recombinant Human beta-Catenin / CTNNB1 protein (Catalog#11279-H20B)
Preparation
Produced in rabbits immunized with purified, recombinant Human beta-Catenin / CTNNB1 (rh beta-Catenin / CTNNB1; Catalog#11279-H20B; P35222-1; Met1-Leu781). beta-Catenin / CTNNB1 specific IgG was purified by Human beta-Catenin / CTNNB1 affinity chromatography.
Source
Polyclonal Rabbit IgG
Purification
Protein A & Antigen Affinity
Formulation
0.2 μm filtered solution in PBS
Conjugate
Unconjugated
Form
Liquid
Shipping
This antibody is shipped as liquid solution at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free. Avoid repeated freeze-thaw cycles.

Anti-beta-Catenin Antibody (Rabbit Polyclonal antibody) Validated Applications

Application Dilution
ELISA 1:5000-1:10000
IHC-P 1:500-1:2000
Please Note: Optimal concentrations/dilutions should be determined by the end user.

Anti-beta-Catenin Antibody (Rabbit Polyclonal antibody) Images

Immunochemical staining of human CTNNB1 in human skin (from 2 donors) with rabbit polyclonal antibody (1:1000, formalin-fixed paraffin embedded sections). Positive staining was localized to epithelium.
Immunochemical staining of human CTNNB1 in human colon with rabbit polyclonal antibody (1:1000, formalin-fixed paraffin embedded sections). Positive staining was localized to colonic gland.
Immunochemical staining of human CTNNB1 in human colon cancer with rabbit polyclonal antibody (1:1000, formalin-fixed paraffin embedded sections). Positive staining was localized to colonic gland.
Immunochemical staining of human CTNNB1 in human breast cancer (from 2 donors) with rabbit polyclonal antibody (1:1000, formalin-fixed paraffin embedded sections). Positive staining was localized to epithelium.

Anti-beta-Catenin Antibody: Alternative Names

Anti-armadillo Antibody; Anti-CTNNB Antibody; Anti-MRD19 Antibody

beta-Catenin Background Information

beta-Catenin, also known as CTNNB1, is a member of the armadillo family of proteins. These proteins have multiple copies of the so-called armadillo repeat domain, which is specialized for protein-protein binding. It is part of a complex of proteins that constitute adherens junctions (AJs). AJs are necessary for the creation and maintenance of epithelial cell layers by regulating cell growth and adhesion between cells. CTNNB1 also anchors the actin cytoskeleton and may be responsible for transmitting the contact inhibition signal that causes cells to stop dividing once the epithelial sheet is complete. Finally, beta-Catenin binds to the product of the APC gene, which is mutated in adenomatous polyposis of the colon. Defects in beta-Catenin can cause colorectal cancer, pilomatrixoma (PTR), medulloblastoma, and ovarian cancer. CTNNB1 is a key dowstream component of the canonical Wnt signaling pathway. In the absence of Wnt, it forms a complex with AXIN1, AXIN2, APC, CSNK1A1 and GSK3B that promotes phosphorylation on N-terminal Ser and Thr residues and ubiquitination of CTNNB1 via BTRC and its subsequent degradation by the proteasome. In the presence of Wnt ligand, beta-Catenin is not ubiquitinated and accumulates in the nucleus, where it acts as a coactivator for transcription factors of the TCF/LEF family, leading to activate Wnt responsive genes. CTNNB1 is involved in the regulation of cell adhesion. The majority of beta-catenin is localized to the cell membrane and is part of E-cadherin/catenin adhesion complexes which are proposed to couple cadherins to the actin cytoskeleton.
Full Name
catenin beta 1
References
  • Yang, et al. (2002) Linking β-catenin to androgen-signaling pathway. J Biol Chem. 277(13):11336-44.
  • Hino S, et al. (2005) Phosphorylation of β-Catenin by Cyclic AMP-Dependent Protein Kinase Stabilizes β-Catenin through Inhibition of Its Ubiquitination. Mol Cell Biol. 25(20):9063-72.
  • Liu X, et al. (2005) Rapid, Wnt-induced changes in GSK3beta associations that regulate beta-catenin stabilization are mediated by Galpha proteins. Curr Biol. 15(22):1989-97.
  • Kraus C, et al. (1994) Localization of the human β-catenin gene (CTNNB1) to 3p21: a region implicated in tumor development. Genomics. 23(1):272-4.
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