Anti-beta Catenin CTNNB1 Rabbit Monoclonal Antibody

SKU:BHA21008556
Research Validated
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Overview
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Anti-CTNNB1 antibody (Rabbit monoclonal, clone EC-3, Rabbit IgG). Validated for Western blot, immunohistochemistry, immunofluorescence and immunoprecipitation. Reactivity: Human, Mouse, Rat. Recognizes catenin beta-1. Observed band in Western blot: about 85 kDa.
Target CTNNB1
clone number EC-3
Host Rabbit
Reactivity Human,Mouse,Rat
Isotype Rabbit IgG
Application(s) WB, IHC, ICC, IF, IP
Options selector
Catalog no. Size Conjugation
M00004-1 100 uL/vial
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options:
    • Size: 100 uL/vial; Conjugation: Unconjugated
      Form: Liquid
      Storage: Store at -20℃ for one year. For short term storage and frequent use, store at 4℃ for up to one month. Avoid repeated freeze-thaw cycles.
      Applications: WB,IHC,ICC,IF,IP
      Application details: WB 1:1000-5000<br>IHC 1:50-200<br>ICC/IF 1:50-200<br>IP 1:20<br>
      Contents: Rabbit IgG in phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol, 0.4-0.5mg/ml BSA.
  • Lead time: typically ships in ~2-3 business days; timing may vary by selected option.
  • Storage: Store at -20℃ for one year. For short term storage and frequent use, store at 4℃ for up to one month. Avoid repeated freeze-thaw cycles.
  • Shipping: cold-chain shipment (typically with ice packs).
  • Upon receipt: store at the recommended temperature as soon as possible.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Target CTNNB1
Alternative names Catenin beta-1;Beta-catenin;CTNNB1;CTNNB;OK/SW-cl.35, PRO2286;
UniProt # P35222
Host Rabbit
Clone EC-3
Clonality
  • Monoclonal
Isotype
  • Rabbit IgG
Reactivity
  • Human
  • Mouse
  • Rat
Applications
  • Western Blot
  • Immunohistochemistry
  • Immunofluorescence
  • Immunoprecipitation
Immunogen A synthesized peptide derived from human beta Catenin
Molecular weight 85.5 kDa
Purification Affinity-chromatography
Reconstitution Restore with deionized water (or equivalent) for reconstitution volume of 1.0 mL
Cellular localization Cytoplasm. Nucleus . Cytoplasm, cytoskeleton. Cell junction, adherens junction. Cell junction. Cell membrane . Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, spindle pole. Colocalized with RAPGEF2 and TJP1 at cell-cell contacts (By similarity). Cytoplasmic when it is unstabilized (high level of phosphorylation) or bound to CDH1. Translocates to the nucleus when it is stabilized (low level of phosphorylation). Interaction with GLIS2 and MUC1 promotes nuclear translocation. Interaction with EMD inhibits nuclear localization. The majority of beta-catenin is localized to the cell membrane. In interphase, colocalizes with CROCC between CEP250 puncta at the proximal end of centrioles, and this localization is dependent on CROCC and CEP250. In mitosis, when NEK2 activity increases, it localizes to centrosomes at spindle poles independent of CROCC. Colocalizes with CDK5 in the cell-cell contacts and plasma membrane of undifferentiated and differentiated neuroblastoma cells. .
Concentration 0.5mg/ml
Form Liquid
Storage Store at -20℃ for one year. For short term storage and frequent use, store at 4℃ for up to one month. Avoid repeated freeze-thaw cycles.
Catalog no. (Mfr.) M00004-1
Main SKU BHA21008556
Rabbit Monoclonal

Product Overview

Clone EC-3 is a rabbit monoclonal antibody that recognizes catenin beta-1 (gene CTNNB1) in human, mouse and rat samples and is validated for Western blot, IHC, ICC/IF and immunoprecipitation. The predicted molecular weight is 85.5 kDa, and the supplier reports an observed band at about 85 kDa.

β-Catenin (CTNNB1) has two roles: it is a structural part of cadherin-based adherens junctions and the central effector of canonical Wnt signaling. Without Wnt, a destruction complex of APC, AXIN, CK1α and GSK3B targets it for proteasomal degradation; with Wnt, it builds up in the nucleus and activates TCF/LEF target genes. It is studied in development, stem cells and cancer.

Target Catenin beta-1 (gene CTNNB1; UniProt P35222, human)
Clone EC-3
Host / Clonality / Isotype Rabbit / Monoclonal / Rabbit IgG
Reactivity Human, Mouse, Rat
Form Liquid
Formulation PBS (pH 7.4); 150 mM NaCl; 0.02% sodium azide; 50% glycerol; plus stabilizers
Calculated MW 85.5 kDa
Observed MW 85 kDa
Storage Long term: −20 °C for up to 12 months. Frequent use: 4 °C for up to 1 month. Avoid repeated freeze–thaw cycles.

Validated Applications

Western blot 1:1000–1:5000
Immunohistochemistry 1:50–1:200
Immunocytochemistry / Immunofluorescence 1:50–1:200
Immunoprecipitation 1:20

Samples with a confirmed band (WB): human HepG2 cells, human MCF-7 cells, rat PC-12 cells, rat RH35 cells, mouse NIH/3T3 cells.

Recommended loading (WB): 20–40 µg of total protein per lane.

Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 30 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 1:1000 overnight at 4 °C, HRP-conjugated secondary antibody at 1:500, ECL detection.

Samples with confirmed staining (IHC): human bladder squamous cells carcinomar tissue, human liver cancer tissue, human ovarian cancer tissue, human placenta tissue, rat intestines tissue.

Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.

Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).

Samples with confirmed staining (ICC/IF): A431 cells.

Immunogen

Synthetic peptide based on the sequence of human beta-catenin.

Reactivity Notes

The supplier lists reactivity with human, mouse and rat. UniProt places catenin beta-1 in the cytoplasm, nucleus, cell junction and cell membrane. Tissue expression noted by UniProt (human): Expressed in several hair follicle cell types: basal and peripheral matrix cells, and cells of the outer and inner root sheaths. The samples tested by the supplier (listed above) are a practical starting point for positive controls.

Safety

Handling: the formulation contains sodium azide as a preservative. Wear gloves, avoid contact with skin and eyes, and dispose of waste according to local regulations. For research use only; not for diagnostic or therapeutic procedures.
Q.Which applications is this antibody validated for, and at what dilution?
A.Validated applications with suggested starting dilutions: Western blot 1:1000–1:5000; Immunohistochemistry 1:50–1:200; Immunocytochemistry / Immunofluorescence 1:50–1:200; Immunoprecipitation 1:20. Optimal dilutions should be determined by each laboratory.
Q.Which species does this antibody react with?
A.Validated reactivity: Human, Mouse, Rat. Other species are not listed by the supplier.
Q.What band size should be expected in Western blot?
A.Reported by the supplier: calculated molecular weight 85.5 kDa; observed band at about 85 kDa.
Q.What immunogen was used to raise this antibody?
A.Synthetic peptide based on the sequence of human beta-catenin.
Q.How should this antibody be stored?
A.Long term: −20 °C for up to 12 months. Frequent use: 4 °C for up to 1 month. Avoid repeated freeze–thaw cycles.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.

Wenxia Li et al. (2025) Di-(2-ethylhexyl) Phthalate (DEHP) and Its Metabolite Promote Multiple Myeloma Progression and Bortezomib Resistance. Journal of Hazardous Materials. 10.1016/j.jhazmat.2025.139147

Hai-Chao Zhao et al. (2023) CD168+ macrophages promote hepatocellular carcinoma tumor stemness and progression through TOP2A/β-catenin/YAP1 axis. iScience. 10.1016/j.isci.2023.106862

Zhiguang Huang et al. (2025) Sinapic acid and glabridin synergistically mitigate androgenetic alopecia by modulating ferroptosis through stabilization of β-catenin against ubiquitin-dependent degradation. Biochemical Pharmacology. 10.1016/j.bcp.2025.117171

Yanbing Wang et al. (2022) TERT Promoter Revertant Mutation Inhibits Melanoma Growth through Intrinsic Apoptosis. Biology-Basel. 10.3390/biology11010141

Xinyu Liu et al. (2017) Sohlh1 suppresses glioblastoma cell proliferation, migration, and invasion by inhibition of Wnt/β-catenin signaling. Molecular Carcinogenesis. 10.1002/mc.22774

Yijie Fu et al. (2020) Downregulation of CXXC Finger Protein 4 Leads to a Tamoxifen-resistant Phenotype in Breast Cancer Cells Through Activation of the Wnt/β-catenin Pathway. Translational Oncology. 10.1016/j.tranon.2019.12.005

Fu Yuejun et al. (2014) Lithium chloride decreases proliferation and migration of C6 glioma cells harboring isocitrate dehydrogenase 2 mutant via GSK-3β. Molecular Biology Reports. 10.1007/s11033-014-3258-7

Lei Huang et al. (2017) E‑cadherin involvement in human lens epithelial cell transdifferentiation may be associated with N‑cadherin. Molecular Medicine Reports. 10.3892/mmr.2017.7132

Hao-Nan Ding et al. (2025) Effects of bergapten-loaded long-circulating liposomes on osteogenic differentiation of human dental pulp stem cells. Journal of Asian Natural Products Research. 10.1080/10286020.2025.2575989

Lin Cong et al. (2017) Effects of atorvastatin on porcine aqueous humour outflow and trabecular meshwork cells. Experimental and Therapeutic Medicine. 10.3892/etm.2017.5353

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