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For Research Use Only (RUO)
Product Description
SHENTEK® Residual SV40LTA & E1A DNA Quantitation Kit (2G) is a duplex real-time PCR (qPCR) kit designed to quantify residual SV40 large T antigen (LTA) and E1A host cell DNA (e.g., from HEK293T). The assay is duplex (simultaneous detection of SV40LTA and E1A) with an internal positive control (IPC) and achieves sensitivity to the level of 10^1 copies/μL. The kit includes linear and non-linear DNA controls for standard curve generation and is compatible with common real-time PCR platforms (SHENTEK-96S, ABI 7500, Bio-Rad CFX96). Reagents are provided for 100 reactions.
Technical Specifications
| Parameter | Details |
|---|---|
| Intended use | Quantitation of residual SV40LTA and E1A host cell DNA in biological samples |
| Detection principle | Duplex real-time PCR (qPCR) with target-specific primer/probe mixes and IPC |
| Sensitivity (LOD) | 10^1 copies/μL (stated detection level) |
| Standard curve dynamic range (linear DNA) | Typical standard curve points: 4.67 × 10^6 to 4.67 × 10^1 copies/μL (ST1–ST6) |
| Standard curve dynamic range (non-linear DNA) | Typical standard curve points: 2.80 × 10^6 to 2.80 × 10^2 copies/μL (ST1–ST5) |
| Control concentrations (as supplied) | Linear DNA Control: SV40LTA 4.67 × 10^9 copies/μL; E1A 4.97 × 10^9 copies/μL. Non-linear DNA Control: SV40LTA 2.80 × 10^9 copies/μL; E1A 2.98 × 10^9 copies/μL |
| Quantitation format | Absolute quantitation using standard curve (user-prepared serial dilutions) |
| Reaction setup / volume | Total reaction volume 30 μL (20 μL qPCR MIX + 10 μL sample or standard). qPCR MIX per reaction: qPCR Reaction Buffer 15.9 μL, Primer & Probe MIX 2.8 μL, IPC MIX 1.3 μL (total 20 μL) |
| Thermal cycling | Activation 95 °C 10:00 (1 cycle); Denaturation 95 °C 0:15; Annealing/extension 60 °C 1:00; 40 cycles. Fluorescence read during annealing/extension |
| Instrument compatibility | SHENTEK-96S, ABI 7500 (SDS v1.4 example), Bio-Rad CFX96 (other real-time PCR instruments supported with appropriate settings) |
| Analysis settings (recommended) | Manual Ct with threshold = 0.02 and Automatic Baseline; set Standard Curve (Absolute Quantitation) analysis |
| IPC acceptance criteria | Mean Ct(IPC) of sample should be within ±1.0 of the NCS Ct(IPC); significant increase indicates potential inhibition |
| NTC acceptance thresholds | SV40LTA detection value of NTC should be ≤ 14.32 copies/μL; E1A detection value of NTC should be ≤ 17.79 copies/μL (or use user-validated criteria) |
| Provided reactions | Reagents for 100 reactions |
| Shelf life | Kit components can be stored under recommended conditions for up to 24 months |
Features
- Duplex real-time PCR: Simultaneous quantitation of SV40LTA and E1A targets in the same reaction using target-specific probes and an IPC.
- High sensitivity: Detects down to 10^1 copies/μL enabling detection of low-level residual host cell DNA.
- Ready-to-use controls and mixes: Includes linear and non-linear DNA controls, qPCR reaction buffer, primer/probe mix, and IPC mix to support standard curve generation and assay QC.
- Platform compatibility: Validated on common qPCR instruments (SHENTEK-96S, ABI 7500, Bio-Rad CFX96) and adaptable to other real-time PCR systems.
- Pre-defined analysis settings: Recommended thermal cycling and analysis parameters (e.g., threshold = 0.02, manual Ct) provided to standardize quantitation.
Applications
- Quantitation of residual SV40LTA and E1A host cell DNA in cell substrates (e.g., HEK293T)
- Residual host cell DNA monitoring for upstream/downstream bioprocessing and product release testing (research use)
- Method validation and standard curve generation for absolute quantitation of SV40-derived sequences
Kit Contents
Attention
• For Research Use Only (RUO). Not for diagnostic use.
• Read the Material Safety Data Sheets (MSDS) and follow handling instructions.
• Wear appropriate PPE: protective eyewear, mask, laboratory coat, and gloves.
• Avoid contamination: irradiate bench, pipettes and tubes with UV for 30 minutes and disinfect surfaces with 75% ethanol before setup.
• Reconstitute lyophilized control carefully: add 55 μL ddH2O, mix and let stand 10 minutes; perform serial dilutions as instructed.
• Protect light-sensitive reagents (qPCR Reaction Buffer, Primer & Probe MIX, IPC MIX) from light and store at –20 °C.
• Prepare at least five concentration points for the standard curve; perform method validation to select appropriate sample dilutions.
• DDB: store remaining unused DDB at 2–8 °C; if cloudy, heat to 37 °C until clear.
• IPC criteria: mean Ct(IPC) should be within ±1.0 of NCS Ct(IPC); significant shifts indicate inhibition.
• NTC acceptance: SV40LTA ≤ 14.32 copies/μL and E1A ≤ 17.79 copies/μL (or use user-defined validation criteria).
• Configure analysis parameters per instrument and software version; recommended settings include manual Ct and threshold = 0.02.
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.

