| Field | Specification |
|---|---|
| Product Type | |
| Reporter | |
| Selection Marker | Blasticidin, Hygromycin, Puromycin, Zeocin |
| Shipping | |
| Species |
Background
The vitamin D response element (VDRE) is the DNA sequence recognized by the vitamin D receptor (VDR), a ligand-activated nuclear receptor. The active hormone calcitriol, generated from dietary and cutaneously synthesized vitamin D through sequential hydroxylation in the liver and kidney, binds VDR and induces heterodimerization with the retinoid X receptor. The VDR-RXR complex enters the nucleus and binds VDRE sequences to activate or repress target genes. VDR is expressed in most tissues, including immune cells, and vitamin D signaling regulates calcium and phosphate homeostasis, bone metabolism, cell differentiation, and immune function. Disrupted VDR signaling is linked to rickets, osteoporosis, and a range of metabolic and immune-related conditions, making the pathway important in endocrinology research.
Product Description & Applications
The VDRE Reporter Lentivirus is a transcription factor reporter system that provides a sensitive fluorescent or luminescent readout of vitamin D receptor transcriptional activity in mammalian cells. The construct contains tandem repeats of consensus VDR response elements placed upstream of a minimal promoter driving the reporter gene, with an optimized upstream enhancer that maximizes signal-to-noise. A constitutive drug selection marker (Blasticidin, Hygromycin, Puromycin, or Zeocin) enables generation of stable polyclonal reporter cell lines. Stable lentiviral integration provides consistent reporter expression suitable for fluorescence microscopy, flow cytometry, or luminometry. Supplied as high-titer particles purified by PEG precipitation and sucrose gradient centrifugation, the product is well suited to studying VDR activity and vitamin D responses in primary and difficult-to-transfect cells.
About This Product
This reporter lentivirus places a BFP2, d2GFP, EGFP, Firefly Luc, Gaussia Luc, GFP, GFP + Firefly Luc, mCherry, Renilla Luc, RFP, RFP + Firefly Luc reporter gene under the control of tandem consensus response elements specific for the Vitamin D3 receptor (VDR) transcription factor, coupled to a minimal TATA-box promoter and a proprietary upstream enhancer that maximizes signal-to-noise. The constitutively expressed selection marker (Blasticidin, Hygromycin, Puromycin, Zeocin) and/or secondary reporter enables stable polyclonal cell line generation and flexible readout by fluorescence microscopy, flow cytometry, or luminometry.
Stable integration via the lentiviral backbone ensures consistent, clonally representative reporter expression in dividing and post-mitotic target cells — including primary T cells, macrophages, organoids, and cryopreserved material — eliminating the variability inherent to transient transfection. The self-inactivating LTR design and third-generation packaging minimize insertional mutagenesis risk and ensure biosafety classification at BSL-2.
Can't find the lentiviral construct you need, or want to adjust key design elements? Contact us to discuss custom LV design and optional add-ons.
Common customization requests
- Insert / payload: replace the gene/sequence, swap to a different isoform, add mutations, or optimize cloning features.
- Expression design: change promoter (e.g., CMV/EF1α/PGK), add enhancers, or adjust regulatory elements.
- Reporters: add/swap GFP/RFP/mCherry/luciferase (single or dual reporters where applicable).
- Selection markers: add/swap puromycin/blasticidin/neomycin or fluorescent selection options.
- Vector format: switch between OE, shRNA, CRISPR (sgRNA/Cas systems), or control vectors (where supported).
Add-ons you can request
- Control viruses: empty vector, non-targeting shRNA, reporter-only controls, or matched backbone controls.
- Packaging / format: concentration options, aliquoting, or custom fill volume for screening workflows.
- Documentation: construct map/sequence confirmation package (as available) and batch documentation.
What to include in your request
- Target cell type/model (cell line or primary cells) and intended readout (reporter, knockdown, OE, etc.)
- Insert sequence (FASTA) or reference ID, plus any required tags/mutations
- Promoter, reporter, and selection marker preferences
- Desired scale and preferred format (aliquots / concentration requests)
Email us at support@biohippo.com or use the Talk to a Scientist request form.
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