- Производитель:
- Roche
Enzyme Commission (EC) Number: | 2.7.7.7 ( BRENDA | IUBMB ) |
Кат. номер |
11681834001 |
11759060001 |
11681842001 |
The Expand Long Template PCR System copies DNA threefold more accurately than Taq DNA Polymerase.
Misincorporations cause Taq DNA polymerase to fall off the DNA strand. The 3 5 exonuclease activity of the proofreading polymerase reaction mix amplify DNA three times more accurately than Taq DNA polymerase alone.
Long PCR products require a special buffer and optimized protocol. This kit has three buffers for amplifying fragments from 0.5 to 9 kb, 9 to 12 kb, and larger than 12kb. For high template quality, use Roches High Pure Template Preparation Kit to prepare genomic DNA template.
Choose 1st generation Expand Long Template PCR System for long and accurate PCR reactions. Use this optimized enzyme blend and specially developed three-buffer set to generate PCR products from 5 to 20kb in length. Use the product for:
- PCR
- RT-PCR or long-range PCR
- Large-fragment amplification
- Genome mapping and sequencing
- Contig construction
- Characterization of cloned sequences in lambda phages or cosmids
- Rapid identification and cloning of complete genes from genomic DNA or cDNA sequence as starting material
As economical alternative we recommend to update to 2nd generation Expand Long Range, dNTPack.
For amplicon sizes of 20 to 35kb choose Expand 20kbPLUS PCR System, dNTPack.
Features and Benefits
Expand Long Template PCR System is ideal for genome mapping and sequencing, contig construction, characterization of cloned sequences in lambda phages or cosmids, and eukaryotic-gene cloning and analysis.
- Amplify longer templates: This 3-buffer set amplifies products from 5 to 20kb.
- Achieve higher yields and 3-fold higher fidelity compared to Taq DNA Polymerase.
- Improve your PCR: Obtaining more full-length PCR product is ideal downstream.
Packaging
1 kit containing 4 components
Quality
Each lot is PCR function-tested using human genomic DNA and specific primers for a 9kb, 12kb, and 15kb fragment. The enzyme mix is tested for the absence of any contaminating activities, including endo- or exonucleases and nicking activity according to the current Quality Control procedures.
Unit Definition
Volume Activity: 5 U/μl
Preparation Note
Working concentration: Optimal enzyme concentration varies from 0.5 to 5.0 U per 50 µl reaction. The standard enzyme concentration is 3.75 U per 50 µl reaction.
Expand is a trademark of Roche
Quality Level | 100, |
usage | sufficient for 190 reactions (11681842001), sufficient for 38 reactions (11681834001), sufficient for 950 reactions (11759060001) |
packaging | pkg of 3,600 U (11759060001 [10x360 U]), pkg of 150 U (11681834001), pkg of 720 U (11681842001 [2x360 U]) |
Торговая марка | Roche |
parameter | 68 °C optimum reaction temp. |
shipped in | dry ice |
storage temp. | 20°C |
RIDADR | NONH for all modes of transport |
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