Recombinant Mouse beta-Catenin / CTNNB1 Protein (His & GST Tag)
Beta LifeScience
SKU/CAT #: BLPSN-0395
Recombinant Mouse beta-Catenin / CTNNB1 Protein (His & GST Tag)
Beta LifeScience
SKU/CAT #: BLPSN-0395
Catalog No.: BLPSN-0395
Product Overview
| Tag | His&GST |
| Host Species | Mouse |
| Accession | Q02248 |
| Synonym | Bfc, Catnb, Mesc |
| Background | 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. |
| Description | A DNA sequence encoding the mouse CTNNB1 (Q02248) (Met1-Leu781) was fused with the N-terminal His-tagged GST tag at the N-terminus. |
| Source | Baculovirus-Insect Cells |
| Predicted N Terminal | Met |
| AA Sequence | Met1-Leu781 |
| Molecular Weight | The recombinant mouse CTNNB1/GST chimera consists of 1018 a.a. and has a calculated molecular mass of 113 kDa. The recombinant protein migrates as an approximately 115 kDa band in SDS-PAGE under reducing conditions. |
| Purity | >90% as determined by SDS-PAGE |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method |
| Bioactivity | Please contact us for detailed information |
| Formulation | Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 8.0, 10% gly. |
| Stability | The recombinant proteins are stable for up to 1 year from date of receipt at -70°C. |
| Usage | For Research Use Only |
| Storage | Store the protein under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. |
