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Invitrogen™ Second Strand cDNA Synthesis Kit
Description
InvitrogenTM Second Strand cDNA Synthesis Kit is design to produce double-stranded cDNA using first strand reaction without the need for intermediate organic extraction or ethanol precipitation steps. This convenient single-tube format speeds up the synthesis procedure and maximizes cDNA recovery. The kit contains premixed components to reduce the number of pipetting steps necessary to complete the procedure.
Features of the Second Strand cDNA Synthesis Kit include:
- Efficient synthesis of full-length double-stranded cDNA
- Fast—procedure completed in 1 hour
- Convenient—pre-mixed components
- Complete—includes residual RNA removal reagents
Applications
- Full-length double-stranded blunt-end cDNA synthesis for cloning
- Double-stranded cDNA library construction
Specifications
Specifications
| Content And Storage | Contents: • Second Strand Enzyme Mix, 4 x 1 mL • 5X Second Strand Reaction Mix, 4 x 250 μL • 0.5 M EDTA, pH 8.0, 4 x 1 mL • RNase I, 10 U/μL, 4 x 500 μL • Water, nuclease-free, 12 x 1.25 mL Storage: -15 to -25°C |
| Format | 200 reactions |
| Product Type | cDNA Synthesis Kit |
| Quantity | 200 reactions |
| For Use With (Application) | Cloning |
| Final Product Type | Double Stranded cDNA |
| No. of Reactions | 200 Reactions |
| Reaction Format | Separate Components |
Frequently Asked Questions (FAQs)
The second strand reaction must be incubated at 16 degrees C to prevent spurious synthesis by DNA polymerase I. At higher temperatures, DNA polymerase I tends to strand-displace rather than nick translate.
Dilute the first-strand reaction as outlined in the manual (https://assets.thermofisher.com/TFS-Assets/LSG/manuals/MAN0019413_SecondStrandcDNASynthesisKit_UG.pdf) on page 2 under Second Strand cDNA Synthesis step. Failure to properly dilute the first-strand reaction changes the pH of the second strand reaction and influences the activity of the 3'-5' and 5'-3' exonuclease activities of DNA polymerase I.
Always perform the RT inactivation step after first-strand cDNA synthesis.
The main reasons are incomplete RT inactivation, improper preparation of the second strand reaction mixture, and incorrect reaction temperature.