Details
Source
Purified from an E coli strain that carries the DpnI gene from Dipplococcus pneumoniae
Reagents Supplied
CMX Buffer 4
Unit Definition
One unit is the amount of enzyme required to completely digest 1 μg of pBR322 dam methylated DNA in 1 hour in a total reaction volume of 50 μl
Star Activity
No
Inactivation Temperature
80°C for 10 minutes
Incubation Temperature
37°C
Assay Unit Substrate
pBR322 dam methylated DNA
Reaction Buffer
CMX Buffer 4:
20 mM Tris-acetate (pH 7.5 at 37°C)
10 mM magnesium acetate
50 mM potassium acetate
1 mM dithiothreitol
Activity in Buffers
Buffer 1: 75%
Buffer 2: 100%
Buffer 3: 100%
Buffer 4: 100%
Buffer 5: 0%
Storage Buffer
10 mM Tris-HCl (pH 7.4 at 4°C)
400 mM NaCl
0.1 mM EDTA
1 mM dithiothreitol
0.1% Trition X-100™
200 μg/ml bovine serum albumin
50% (v/v) glycerol
Assay Conditions
See Certificate of Analysis Below.
Notes
- Dpn I cleaves only methylated GATC sites.
- It may be necessary to add more enzyme to obtain complete digestion when using other buffer than optimal (Acet).
- It is recommended to add 10 units of the enzyme to obtain complete digestion of the methylated template after standard site-directed mutagenesis (total reaction volume is 50 μl).
Storage Conditions
Store at -20°C
Shipped on dry ice
Downloads
Certificate of Analysis
Lot 2407019 PDF
MSDS
MSDS PDF