Properties & Usage
Unit Definition
One unit is defined as the amount of enzyme required to digest 1 µg T7 DNA in 1 hour at 55°C in a total reaction volume of 50 µl.
The phage T7 DNA is a particularly convenient substrate for assaying the activity because of the proximity of GAGTC sequences. Nt.BstNBI cleavage of phage T7 DNA yields 5 bands; 13 kb, 9 kb, 7 kb, 6 kb and 4 kb. Reaction Conditions
1X NEBuffer™ r3.1
Incubate at 55°C
1X NEBuffer™ r3.1
100 mM NaCl
50 mM Tris-HCl
10 mM MgCl2
100 µg/ml Recombinant Albumin
(pH 7.9 @ 25°C)
Activity in NEBuffers
NEBuffer™ r1.1: 0%
NEBuffer™ r2.1: 10%
NEBuffer™ r3.1: 100%
rCutSmart™ Buffer: 10%
Diluent Compatibility
Storage Buffer
10 mM Tris-HCl
50 mM KCl
1 mM DTT
0.1 mM EDTA
200 µg/ml Recombinant Albumin
50% Glycerol
pH 7.4 @ 25°C
Heat Inactivation
80°C for 20 minutes Methylation Sensitivity
dam methylation: Not Sensitive
dcm methylation: Not Sensitive
CpG Methylation: Not Sensitive
Activity at Temperature
@37°C: 50%