Pfu DNA Pol is a superior thermostable DNA Pol isolated from an E.coli strain carrying the “pol” gene from Pyrococcus furiosus with 5’ →3’ polymerase activity and 3’ → 5’ exonuclease proofreading activity, i.e. it catalyzes DNA synthesis with very low error rate (about twelve times more accurate than Taq Pol). However, Pfu DNA Pol is slower than Taq Pol and typically requires about 1-2 min per cycle to amplify 1Kb of DNA.Using Pfu DNA Pol in PCR reactions also results in blunt-ended amplification products. Pfu DNA Pol is hence superior for techniques that require high fidelity DNA synthesis, but can also be used in conjunction with Taq Pol to obtain the fidelity of Pfu with the speed of Taq Pol activity.
Pfu DNA Polymerase is supplied with 5X XtraWhite (GeneSpin proprietary formulation) developed for standard and/or high-fidelity amplification of high-GC (>75%) templates.
cat. no.
amount
note
cat. no.
amount
note
STS-P 250
STS-P 1000
250 units
1000 units
5X XtraWhite Buffer
5X XtraWhite Buffer
STSn-P 250
STSn-P 1000
250 units
1000 units
5X XtraWhite Buffer + dNTPs
5X XtraWhite Buffer + dNTPs
STS-Pw 250
250 units
5X XtraWhite Buffer w/o MgCl2
STSn-Pw 250
250 units
5X XtraWhite Buffer w/o MgCl2 + dNTPs
STS-Pw 1000
1000 units
5X XtraWhite Buffer w/o MgCl2
STSn-Pw 1000
1000 units
5X XtraWhite Buffer w/o MgCl2 + dNTPs
FOR RESEARCH USE ONLY
SHIPPING
Shipped in green ice.
FORM
Liquid
SHELF LIFE
12 months
STORAGE
Store at -20°C
UNIT DEFINITION
One unit is defined as the amount of enzyme required to incorporate 10 nanomoles of dNTPs into acid-insolubile material in 30 min at 74°C.
CONCENTRATION
2U/ul
5X BUFFER
5 x conc. complete PCR buffer
Components
component
STS-P250
STS-Pw250
STSn-P250
STSn-Pw250
Pfu Polymerase
250 units / 125ul
250 units / 125ul
250 units / 125ul
250 units / 125ul
5X Buffer
1.5ml 5X Buffer with MgCl2
1.5ml 5X Buffer w/o MgCl2
1.5ml 5X Buffer with MgCl2
1.5ml 5X Buffer w/o MgCl2
MgCl2
-
500ul / 50mM
-
500ul / 50mM
dNTPs
-
-
100ul / 10mM each
100ul / 10mM each
component
STS-P1000
STS-Pw1000
STSn-P1000
STSn-Pw1000
Pfu Polymerase
1000 units / 500ul
1000 units / 500ul
1000 units / 500ul
1000 units / 500ul
5X Buffer
4 ml 5X Buffer with MgCl2
4 ml 5X Buffer w/o MgCl2
4 ml 5X Buffer with MgCl2
4 ml 5X Bufferw/o MgCl2
MgCl2
-
500ul / 50mM
-
500ul / 50mM
dNTPs
-
-
400ul / 10mM each
400ul / 10mM each
Assay set up
Before starting, vortex all components thoroughly to ensure homogeneity.
Prepare a premix for the number of assays you need according to the following protocol:
component
stock conc.
final conc.
30ul reaction
component
stock conc.
final conc.
30ul reaction
5X Buffer*
dNTPs
Pfu Polymerase
primers
DNA Template
MG Water
Cycling conditions
5X
5U/ul
10mM each
1ug/ul each
-
-
1X
200uM
0.025U/ul
50ng/ul each
-
-
6.0ul
0.6ul
0.2ul
2.0ul each
10-20ng
up to 30ul
5X Buffer with MgCl2*
5X Buffer**
dNTPs
Pfu Polymerase
primers
MgCl2
DNA Template
MG Water
5X
5U/ul
10mM each
1ug/ul each
50mM
-
-
1X
200uM
0.025U/ul
1.5-4.0 mM
-
-
50ng/ul each
6.0ul
0.6ul
0.2ul
2.0ul each
0.9-2.4ul
10-20ng
up to 30ul
5X Buffer without MgCl2**
Cycling conditions:
Spin down the tubes/plate briefly to remove bubbles and place them into the cycler.
denaturation
95°C
5min
denaturation (1)
95°C
45 sec
annealing (2)
extension
50-68°C
72°C
45 sec
45 sec
final elong.
72°C
5 min
final step
4°C
forever
1)The annealing temperature depends on the melting temperature of the primers used.
2)The elongation time depends on the length of the fragments to be amplified. A time of 1 min/kb is recommended.
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MOLECULAR BIOLOGY
reagents
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