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For Research Use Only (RUO)
Product Description
SHENTEK® Replication-Competent Lentivirus (RCL) Quantitation Kit is used for the quantitative detection of replicable lentiviral RCL in cell therapy products and gene therapy products produced with lentiviral vectors, such as virus-producing cell banks, end of production cells, viral vectors and CAR-T cells. This kit is rapid, specific and reliable, and can work in coordination with the SHENTEK® Virus DNA & RNA Extraction Kit to quantitate the copy number of replicable lentivirus RCL in samples.
Technical Specifications
| Parameter | Details |
|---|---|
| Intended use | Quantitative detection of replication-competent lentivirus (RCL) in cell therapy and gene therapy products (virus-producing cell banks, end-of-production cells, viral vectors, CAR-T cells). |
| Assay format | One-step reverse transcription quantitative PCR (qRT-PCR) with FAM-labeled probe; ROX passive reference recommended. |
| Provided standard curve range (recommended) | Standard dilutions ST2–ST6: 6 × 10^5, 6 × 10^4, 6 × 10^3, 6 × 10^2, 6 × 10^1 copies/µL (prepared from ST = 6 × 10^8 copies/µL). |
| Recommended reaction volumes | qRT-PCR MIX per reaction 10 µL; add 20 µL sample/standard/NTC for a total reaction volume of 30 µL. |
| qRT-PCR master mix composition (per reaction) | 5×RT-qPCR Buffer 6 µL; RT-qPCR Enzyme MIX 1 µL; RCL Primer&Probe MIX 3 µL; total 10 µL. |
| Thermal cycling program | Reverse transcription: 50 °C 15:00 (1 cycle); Activation: 95 °C 0:30 (1 cycle); 40 cycles: 95 °C 0:15 (denature), 60 °C 1:00 (anneal/extend, fluorescence read). |
| Instrument compatibility | Compatible with common real-time PCR systems (SHENTEK-96S, Applied Biosystems 7500, LightCycler 480 II, CFX96, qTOWER3 G, etc.). |
| Detection/read settings | Reporter dye: FAM; Passive reference: ROX; Threshold setting example: 0.02 (manual Ct), automatic baseline. |
| Acceptance criteria (controls) | NTC Ct should be >= 35.00 cycles. NCS Ct should be larger than the mean Ct of the lowest concentration in the standard curve. |
| Kit shelf life | Kit components can be stored at -20 °C; stable for up to 24 months (check label expiration date). |
| Sensitivity / dynamic range (inferred from standard curve) | Demonstrated standard curve points cover at least 6 × 10^5 to 6 × 10^1 copies/µL (user should perform validation to determine empirical LOD/LOQ). |
| Replicates recommended | Triplicate wells recommended for each standard, control and test sample. |
| Sample input | 20 µL purified sample per 30 µL reaction (per example workflow); samples must be processed/extracted (e.g., with SHENTEK Virus DNA & RNA Extraction Kit) prior to qRT-PCR. |
Features
- Rapid and specific quantitation: One-step qRT-PCR assay optimized for accurate quantitation of replication-competent lentivirus (RCL).
- Compatibility: Works with common real-time PCR instruments and is compatible with SHENTEK® Virus DNA & RNA Extraction Kit for upstream sample prep.
- Ready-to-use reagents: Includes primer & probe mix, buffer and enzyme mixes; standardized control for construction of a quantitative standard curve.
- High throughput: Reagents provided for up to 100 reactions and plate-based workflows (96-well format) supported.
- Established QC criteria: Includes recommended control acceptance criteria (NTC and NCS Ct thresholds) and example standard curve settings for result interpretation.
Applications
- Quantitation of replication-competent lentivirus (RCL) in virus-producing cell banks
- Testing end-of-production cells for RCL contamination
- Quantitation of RCL in viral vector preparations
- Safety testing of CAR-T cells and other lentiviral-transduced cell therapy products
- Process development and release testing workflows for gene and cell therapy manufacturing (research use)
Kit Contents
Attention
• For Research Use Only (RUO). Not for diagnostic or therapeutic use.
• Read Material Safety Data Sheets (MSDS) and follow handling instructions.
• Wear appropriate PPE (protective eyewear, mask, clothing, gloves).
• Protect light-sensitive reagents from light; store all components at -20 °C.
• Prevent RNase contamination: use RNase-free consumables and work areas; thaw reagents at 2–8 °C or on ice.
• UV-decontaminate benches, micropipettes and tubes for 30 minutes and disinfect with 75% ethanol before use.
• Process Negative Control Sample (NCS) through the same extraction and handling steps as test samples.
• Include at least five standard curve points (ST2–ST6) and run samples in triplicate for reliable quantitation.
• Verify instrument-specific parameter settings; follow instrument documentation when adapting program parameters.
Quality Management & Certifications
Quality System
Download QMSQMS (ISO, GMP)
Download CertificateQuality Advantages
View ReportQuality Control Process
Download ProcessTechnical Resources & Downloads
Frequently Asked Questions (FAQ)
Research Use Only
Research Use Only (RUO) – This product is intended for laboratory research purposes only and not for clinical or regulatory diagnostic use.
Not intended for use in USDA or FDA regulated diagnostic testing or official compliance testing.
When can I expect my order to ship?
Most orders are filled and shipped within 2-3 business days from the time they are received.
Our standard shipping usually take 2-5 days.
We also provide express shippping for time-sensitive deliveries.
Email contact@biofargo.com if you have any requirements.

