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FastDigest Tru1I

5'...T↓T A A...3'
3'...A A T↑T...5'

FastDigest buffer for 100% activity Optimal incubation at 65°C Not inactivated at 80°C in 20 min LO certified

The FastDigest Tru1I restriction enzyme recognizes T^TAA sites and cuts best at 65°C in 5-15 minutes using universal Yellow Tango Buffer (Isoschizomers: MseI, Tru9I)
  
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Lambda DNA digested with Tru1I

Lambda DNA digested with Tru1I, 1.4% agarose, 195 cleavage sites

Thermo Scientific FastDigest enzymes are an advanced line of fast restriction enzymes that are all 100% active in the universal FastDigest and FastDigest Green reaction buffers.

The universal buffer allows rapid single-, double- or multiple DNA digestion within 5-15 minutes eliminating any need for buffer change or subsequent DNA clean-up steps. DNA modifying enzymes, such as Klenow Fragment, T4 DNA Ligase, alkaline phosphatases and T4 DNA Polymerase all have 100% activity in FastDigest Buffer. Therefore, enzymes for downstream applications can be directly added to the FastDigest reaction mix.

For additional convenience FastDigest Green Buffer includes a density reagent and two tracking dyes for direct loading of digestion reaction products on gels.

Short incubation times and optimal composition of the universal FastDigest Buffer eliminate star activity effects.

Features

  • 100% activity of all FastDigest enzymes in the universal buffer
  • 100% buffer compatibility with downstream applications
  • Complete digestion in 5-15 minutes
  • Direct loading on gels
  • No star activity
  • 176 FastDigest enzymes available

Applications

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

Note

The FastDigest Green Buffer offers the same high performance in DNA digestion and downstream applications as the colorless FastDigest Buffer. For applications that require product analysis by fluorescence excitation (e.g. concentration measurements in UV light) the colorless FastDigest Buffer is recommended.

For methylation sensitivity refer to product specifications.

  
Storage Condition-20 C
HazardousNo
Compatible EndsFastDigest AseI (VspI), FastDigest BfaI (FspBI), FastDigest Csp6I, FastDigest Csp6I, FastDigest NdeI, AseI, BfaI, Csp6I, FspBI, NdeI, VspI.
Formulation1 µL of enzyme (1 FDU) cleaves 1 μg of lambda DNA in 5 minutes at 65°C in 1X FastDigest Buffer.
IsoschizomersSearch for commercial isoschizomers using REsearch.
Recommended Reaction Conditions

1X FastDigest® buffer or 1X FastDigest Green buffer at 65°C.
1 µL of FastDigest Tru1I is formulated to digest up to:

  • 1 µg of lambda DNA in 5 minutes
  • 1 µg of plasmid DNA in 5 minutes
  • 0.2 µg of PCR product in 5 minutes
  • 1 µg of genomic DNA in 10 minutes or 5 µg of genomic DNA in 60 minutes

Reaction conditions

Reaction temperature Digestion time with 1 µL of FastDigest enzyme, min bp from end of DNA required for complete digestion Thermal inactivation Incubation time without star activity, hours
Lambda, 1 µg/20 µL Plasmid DNA, 1 µg/20 µL PCR product, ~0.2 µg/30 µL Genomic DNA, 1 µg/10 µL
65°C 5 5 5 10 3 No
(chloroform extraction)		 2

Methylation Effects

  • Dam: never overlaps - no effect.
  • Dcm: never overlaps - no effect.
  • CpG: never overlaps - no effect.
  • EcoKI: may overlap - blocked.
  • EcoBI: never overlaps - no effect.
Methylation type Sequence Cleavage effect
EcoKI(AAC(N)6GTGC)5'...TTAm6AC(N)6G TGC...3'
3'...AAT TG(N)6Cm6ACG...5'		 Blocked

Number of recognition sites in DNA molecules

Lambda ΦX174 M13mp18/19 pBR322 puc18/19 pUC57
195 35 63 15 13 13
pTZ19R/U pTZ57R pBluescriptIIKS(±) pBluescriptIISK(±) pACYC177 pACYC184
18 18 19 19 16 12

New sites generated by ligation

Newly generated recognition sites resulting from ligation of protruding compatible DNA ends

Recognition Sequence Second Enzyme Enzymes recognizing newly generated recognition sequence
T^TAA
  • NdeI/FastDigest NdeI (CA^TATG)
  • FaiI
  • FastDigest MseI (SaqAI) (T^TAA)
  • VspI (AseI)/FastDigest AseI (VspI) (AT^TAAT)
  • FastDigest MseI (SaqAI)
  • Tru1I (MseI)/FastDigest Tru1I

Newly generated recognition sites resulting from fill-in of 5'-overhang and self-ligation

Recognition Sequence Newly generated sequence after reaction Enzymes that cleave the newly generated sequence
T^TAATTATAA
  • AanI (PsiI)/FastDigest PsiI (AanI)
  • FaiI