Bst 2.0 DNA Polymerase HYB111
Bst 2.0 DNA Polymerase is derived from Bacillus stearothermophilus DNA Polymerase I, which has 5´→3´ DNA polymerase activity and strong chain replacement activity, but no 5´→3´ exonuclease activity. Bst 2.0 DNA Polymerase is ideally suitable for strand-displacement, Loop-mediated isothermal amplification（LAMP）and rapid sequencing.
Components
|
Components |
1600U |
8000U |
80000U |
|
Bst 2.0 DNA Polymerase (8 U/μL) |
0.2 mL |
1 mL |
10 mL |
|
10×HH Bst 2.0 Buffer |
1.5 mL |
2 ×1.5 mL |
3 × 10 mL |
|
MgSO4（100 mM） |
1.5 mL |
2 × 1.5 mL |
2 × 10 mL |
Storage
This product should be stored at -25 to -15°C.
Unit Definition
One unit is defined as the amount of enzyme that incorporate 25 nmol of dNTP into acid insoluble material in 30 minutes at 65°C.
Quality control
1. Protein Purity Assay (SDS-PAGE)：The purity of Bst 2.0 DNA polymerase is ≥ 99% determined by SDS-PAGE analysis.
2. Endonuclease Activity：Incubation of a 50 μL reaction containing a minimum of 8 U of Bst 2.0 DNA polymerase with 1 μg λDNA for 16 hours at 37℃ results in no detectable degradation as determined.
3. Exonuclease Activity：Incubation of a 50 μL reaction containing a minimum of 8 U of Bst DNA 2.0 polymerase with 1 μg λ -Hind Ⅲ digest DNA for 16 hours at 37℃ results in no detectable degradation as determined.
4. Nickase Activity：Incubation of a 50 μL reaction containing a minimum of 8 U of Bst 2.0 DNA polymerase with 1 μg pBR322 DNA for 16 hours at 37°C results in no detectable degradation as determined.
5. RNase Activity：Incubation of a 50 μL reaction containing a minimum of 8 U of Bst 2.0 DNA polymerase with 1.6 μg MS2 RNA for 16 hours at 37°C results in no detectable degradation as determined.
6. E. coli DNA: 120 U of Bst DNA 2.0 polymerase is screened for the presence of E. coli genomic DNA using TaqMan qPCR with primers specific for the E. coli 16S rRNA locus. The E. coli genomic DNA contamination is ≤ 1 Copy.
Instructions
1. Reaction system
|
Components |
Volume |
|
10×HH Bst 2.0 Buffer |
2.5 uL |
|
MgSO4 (100 mM) |
1.5 uL |
|
dNTPs (10 mM each) |
3.5 uL |
|
SYTOTM 16 Green (25×)* |
1 uL |
|
Primer mix** |
6 uL |
|
Bst 2.0 DNA polymerase (8 U/μL) |
1 uL |
|
Template |
× μL |
|
ddH2O |
Up to 25 μL |
*SYTOTM 16 Green (25 ×): According to experimental needs, other dyes can be used as substitutes;
**Primer mix: obtained by mixing equal volumes of 20 µM FIP, 20 µM BIP, 2.5 µM F3, 2.5 µM B3, 5 µM LF, 5 µM LB.
2. Reaction Condition
1 × HH Bst 2.0 Buffer, the incubation temperature is between 60 °C and 65 °C.
3. Heat Inactivation
80 °C, 20 min.
Application
1. LAMP isothermal amplification;
2. DNA strand single displacement reaction;
3. High GC gene sequencing;
4. DNA sequencing of nanogram level.