Recommended Reaction Conditions
• 1X FastDigest Buffer or 1X FastDigest Green Buffer.
• Incubation at 30°C.
• 1 µL of FastDigest GsuI is formulated to digest up to:
–
1 µg of lambda DNA in 15 min.
–
1 µg of plasmid DNA in 30 min.
–
0.2 µg of PCR product in 15 min.
–
1 µg of genomic DNA in 15 min, or 5 µg of genomic DNA
in 60 min.
Thermal Inactivation: Incubation at 65°C for 5 min.
Methylation Effects on Digestion
Dam: never overlaps – no effect.
Dcm: may overlap – blocked.
CpG: never overlaps – no effect.
EcoKI: never overlaps – no effect.
EcoBI: never overlaps – no effect.
Compatible Ends
Check www.thermoscientific.com/research for the list of
restriction enzymes producing compatible ends.
Number of Recognition Sites in DNA
λ
λλ
λ
Φ
ΦΦ
ΦX174 pBR322 pUC57 pUC18/19 pTZ19R/U M13mp18/19
25 3 4 1 1 1 2
Note
• FastDigest GsuI requires only Mg
2+
for its activity, but is
stimulated by S-adenosylmethionine.
• FastDigest GsuI is blocked by overlapping dcm methylation.
To avoid dcm methylation, use a dam
–
, dcm
–
strain such as
GM2163.
CERTIFICATE OF ANALYSIS
Functional Activity Test
1 µg of lambda DNA was completely digested with 1 µL
of the enzyme in 15 minutes at 30°C in 20 µL of reaction
mixture.
Ligation and Recleavage (L/R) Assay
The ligation and recleavage assay was replaced with LO
test after validating experiments showed LO test ability to
trace nuclease and phosphatase activities with sensitivity
that is higher than L/R by a factor of 100.
Labeled Oligonucleotide (LO) Assay
No detectable degradation of single-stranded or double-
stranded oligonucleotides occured during incubation with
1 µL of FastDigest GsuI for 1 hour.
Prolonged Incubation / Star Activity Assay
No detectable degradation of 1 µg of lambda DNA due
to nuclease contamination or star activity occurred during
incubation with 1 µL of FastDigest GsuI for 16 hours.
Quality authorized by: Jurgita Zilinskiene
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