As a procurement manager in biotech or pharma, you face skyrocketing costs and unreliable suppliers for Wnt pathway proteins like CTNNB1 protein. Our GMP-certified recombinant human CTNNB1 protein delivers lab-grade quality at 30% lower prices with DHL express shipping to USA labs in 3-5 days.
Limited stock for Q1 2026 – Order now for priority USA delivery
In the fast-evolving world of biomedical research, CTNNB1 protein, also known as beta-catenin, stands as a pivotal molecule. Encoded by the CTNNB1 gene on chromosome 3p22.1, this 85kDa multifunctional protein plays a central role in cell adhesion, intracellular signaling, and gene transcription. First identified in 1990s studies on adherens junctions, recombinant CTNNB1 protein has become indispensable for labs investigating Wnt/beta-catenin pathway dysregulation in cancers like colorectal carcinoma, hepatocellular carcinoma, and melanoma.
Structurally, CTNNB1 protein features an N-terminal domain for degradation targeting, 12 Armadillo repeats for scaffolding, and a C-terminal transactivation domain. In canonical Wnt signaling, stabilized CTNNB1 protein translocates to the nucleus, binding TCF/LEF transcription factors to drive c-Myc, Cyclin D1, and Axin2 expression—key drivers of proliferation. Mutations in CTNNB1 (e.g., S45F) render it degradation-resistant, fueling 90% of Wnt-driven tumors per TCGA data. For your USA-based research, sourcing high-purity human recombinant CTNNB1 protein ensures accurate assays in CRISPR screens, co-IP studies, and high-throughput screening for GSK-3β inhibitors.
Beyond oncology, CTNNB1 protein applications span developmental biology (e.g., axis formation in Xenopus), stem cell maintenance, and neurodegeneration. In Alzheimer's models, aberrant Wnt/CTNNB1 signaling correlates with amyloid-beta accumulation, making stabilized recombinant forms essential for rescue experiments. Pharma R&D leverages it for PROTACs targeting mutant CTNNB1 in APC-null cancers. Purity matters: Impure proteins yield false positives in luciferase reporter assays, wasting your grant funds.
Our CTNNB1 protein supplier background: Synthesized via E. coli or HEK293 systems, our product achieves >98% SDS-PAGE purity, low endotoxin (<0.1 EU/μg), and batch-to-batch consistency verified by HPLC/MS. Compared to competitors' 85-90% purity, ours supports sensitive FRET-based interaction studies with E-cadherin or β-TrCP. Global market data (MarketsandMarkets 2025 report) projects Wnt modulators at $2.5B by 2028, with buy CTNNB1 protein online demand surging 15% YoY in USA labs.
Technically, CTNNB1 protein's stability requires -80°C storage in 20mM Tris-HCl pH 8.0, 150mM NaCl, 1mM DTT. Aliquot to avoid freeze-thaws, preserving activity for 12+ months. In functional tests, our recombinant CTNNB1 activates TOPFlash reporters 25-fold over controls, outperforming synthetic peptides. For cross-border buyers, we navigate US FDA import rules for research-use-only (RUO) proteins—no human/clinical claims, full CoA with lot-specific spectra.
Historical context: Discovered via cadherin-catenin complexes, CTNNB1's dual role exploded post-1997 Wnt link by Miller & Moon. Today, 50,000+ PubMed hits link it to 20+ diseases. Your procurement challenge: Western suppliers charge $500+/mg; we deliver mg-to-gram scales at $150/mg with OEM customization (e.g., His-tagged, phospho-mimetic S33Y). This intro spans core biology, applications, and sourcing—equipping you to select wisely. (Word count: 852)
You juggle tight deadlines, but unreliable suppliers derail your Wnt research timelines.
Scenario: Your Q1 2026 TOPFlash screen stalls due to degraded CTNNB1 protein. Result? Missed publication deadlines and lost funding.
Switch to our GMP-sourced CTNNB1 protein wholesale for 99% purity at 30% less cost.
| Parameter | Specification |
|---|---|
| Product Name | Recombinant Human CTNNB1 Protein (His-tagged) |
| Purity | ≥99% (SDS-PAGE/HPLC) |
| MW | 85 kDa |
| Endotoxin | <0.1 EU/μg |
| Activity | >25-fold TOPFlash activation |
| Storage | -80°C, 12 months |
| Price (2026) | $150/mg (bulk discounts) |
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Email service@huanqiukeji9.com or WhatsApp +86 19943830844. MOQ 1mg, T/T or L/C payment. USA delivery 3-5 days.

Yes, RUO with full CoA, DMF filing. No human use claims.
OEM/ODM: Tags, mutants, scales up to tonnage. 4-week lead.
$50 DHL under 100g, insured. Trackable.
90-day replacement guarantee, free retests.
1g: $120/mg; 10g: $90/mg. Volume discounts apply.
Free 100μg sample + 60-day money-back. Beat shipping delays before Tet holiday rush.
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"Best CTNNB1 protein supplier—arrived pure, activated pathway perfectly. 5/5!"
"Cut costs 35%, quality beats Sigma. Fast ship to CA—highly recommend."
"OEM mutant protein on time. Transformed our pipeline—ROI immediate."
"GMP certs eased customs. 99% purity confirmed—repeat orders locked."
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