An highly processive, recombinant (from E.coli strain), thermostable DNA with a very high efficiency of 5’- 3’ polymerase activity and 3´- 5’ exonuclease (non-proofreading) activity. Xtra Taq Pol catalyzes the addition of mononucleotide units to the 3’-end of a primer chain, leading to the formation of DNA products that have 3’-overhanging A nucleotides (thus can be used in TA cloning). This enzyme remains funtional even after prolonged incubation steps at 95°C. The enzyme is supplied at 5U/μl and comes with 5X XtraWhite new buffer.
5X XtraWhite is a GeneSpin proprietary formulation, developed for standard and/or high-fidelity amplification of high-GC (>75%) templates. The buffer contains 7.5mM magnesium, PCR enhancers and thickening agents (vortex thoroughly prior to use) and is supplied with 1ml of 6X Orange Loading Dye.
The Orange G dye migrates at the same rate as a duplex DNA fragment of approximately 50 Kbp and does not interfere with DNA migration when it is used as a loading dye for agarose gel electrophoresis.
GREEN LINE OVERVIEW
5x White Buffer GL contains an internal fluorescent stain for DNA detection on Agarose gel directly after PCR amplification.
cat. no.
amount
note
cat. no.
amount
note
250 units
1000 units
250 units
1000 units
5X XtraWhite Buffer GL
5X XtraWhite Buffer GL
5X XtraWhite Buffer GL w/o MgCl2
5X XtraWhite Buffer GL w/o MgCl2
250 units
1000 units
250 units
1000 units
5X XtraWhite Buffer GL + dNTPs
5X XtraWhite Buffer GL + dNTPs
5X XtraWhite Buffer GL w/o MgCl2 + dNTPs
5X XtraWhite Buffer GL 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
5U/ul
5X BUFFER
5x conc. complete PCR buffer
Components
component
XSTS-T5XW 250
STS-T5XWw 250
STSn-T5XW 250
STSn-T5XWw 250
Taq Polymerase
250 units / 50ul
250 units / 50ul
250 units / 50ul
250 units / 50ul
5X Buffer GL
1.5ml 5X Buffer with MgCl2
1ml 10X 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-T5XW 1000
STS-T5XWw 1000
STSn-T5XW 1000
STSn-T5XWw 1000
Taq Polymerase
1000 units / 200ul
1000 units / 200ul
1000 units / 200ul
1000 units / 200ul
5X Buffer GL
4 ml 5X Buffer with MgCl2
4 ml 5X Buffer w/o MgCl2
4 ml 5X Buffer with MgCl2
4 ml 5X Buffer w/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 GL*
dNTPs
Taq Polymerase
primers
DNA Template
MG Water
Cycling conditions
5X
10mM each
5U/ul
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 GL**
dNTPs
Taq Polymerase
primers
MgCl2
DNA Template
MG Water
5X
10mM each
5U/ul
1ug/ul each
50mM
-
-
1X
200uM
0.025U/ul
50ng/ul each
1.5-4.0 mM
-
-
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
30 sec
annealing (2)
extension
50-68°C
72°C
30 sec
30 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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