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Potvrzuji
  1. Úvodní strana
  2. Reagencie
  3. Life Technologies / Fermentas
  4. Conventional restriction enzymes
  5. TauI

TauI

Kód produktu: ER1651 Kód výrobce: ER1651 Kód dodavatele: {FD5C6A02-E25F-43DC-AA5E-19DA3D6959B4} Výrobce: Life Technologies Czech Republic s.r.o.
TauI
1 372,14 Kč
1 134,00 Kč bez DPH
do týdne
50 units

5'...G C S G↓C...3'
3'...C↑G S C G...5'
Available as a FastDigest enzyme for rapid DNA digestion

FastDigest enzyme available B buffer for 100% activity Optimal incubation at 55°C Cleavage blocked or impaired by CpG methylation Not inactivated at 80°C in 20 min Recombinant enzyme LO certified
The TauI restriction enzyme recognizes GCSG^C sites and cuts best at 55°C in B buffer
Zobraz detailní popis

Detailní popis

Thermo Scientific conventional restriction endonucleases are a large collection of high quality restriction enzymes, optimized to work in one of the buffers of the Five Buffer System. In addition, the universal Tango buffer is provided for convenience in double digestions. All of the enzymes exhibit 100% activity in the recommended buffer and reaction conditions. To ensure consistent performance, Thermo Scientific restriction enzyme reaction buffers contain premixed BSA, which enhances the stability of many enzymes and binds contaminants that may be present in DNA preparations.

Highlights

  • Superior quality – stringent quality control and industry leading manufacturing process
  • Convenient color-coded Five Buffer System
  • Includes universal Tango buffer for double-digestions
  • BSA premixed in reaction buffers
  • Wide selection of restriction endonuclease specificities

Applications

  • Molecular cloning
  • Restriction site mapping
  • Genotyping
  • Southern Blot
  • Restriction fragment length polymorphism (RFLP)
  • SNP

Note

Incubation at 37°C results in 30% activity. TauI may remain associated with the cleaved DNA. This may cause DNA band shifting during electrophoresis. To avoid atypical DNA band patterns, use the 6X DNA Loading Dye & SDS Solution for sample preparation or heat the digested DNA in the presence of SDS prior to electrophoresis.

For methylation sensitivity refer to product specifications.

Conditions for 100% Activity
  • 1X Buffer B: 10 mM Tris-HCl (pH 7.5 at 37°C), 10 mM MgCl2, and 0.1 mg/mL BSA
  • Incubate at 55°C
Double Digestion Perform double digestion using DoubleDigest.
Hazardous No
Isoschizomers Search for commercial isoschizomers using REsearch.
Storage Buffer TauI is supplied in: 10 mM Tris-HCl (pH 7.4 at 25°C), 100 mM KCl, 1 mM DTT, 1 mM EDTA, 0.2 mg/mL BSA, and 50% (v/v) glycerol.
Storage Condition -20 C

Reaction conditions

Recommended buffer for 100% activity Optimal temperature Enzyme activity in Thermo Scientific buffers, % Tango buffer for double digestion
B (blue)
1X		 G (green)
1X		 O (orange)
1X		 R (red)
1X		 Tango
(yellow)
1X / 2X
B (Blue) 55°C 100 50-100 0-20 0-20 20-50 0-20 1X

Methylation Effects

  • Dam: never overlaps - no effect.
  • Dcm: never overlaps - no effect.
  • CpG: completely overlaps - blocked.
  • EcoKI: never overlaps - no effect.
  • EcoBI: never overlaps - no effect.
Methylation type Sequence Cleavage effect
CpG GCSGC Blocked

Cleavage efficiency close to the termini of PCR fragments

bp from the recognition site to fragment end
1 2 3 4 5
20-50 50-100

Number of recognition sites in DNA molecules

Lambda ΦX174 M13mp18/19 pBR322 puc18/19 pUC57
181 17 7 21 7 7
pTZ19R/U pTZ57R pBluescriptIIKS(-/+) pBluescriptIISK(-/+) pACYC177 pACYC184
8 8 10 10 12 22

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