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.
cat. no.
amount
note
cat. no.
amount
note
XSTS-T 250
XSTS-T 1000
250 units
1000 units
5X XtraWhite Buffer
5X XtraWhite Buffer
XSTSn-T 250
XSTSn-T 1000
250 units
1000 units
5X XtraWhite Buffer + dNTPs
5X XtraWhite Buffer + dNTPs
XSTS-Tw 250
250 units
5X XtraWhite Buffer w/o MgCl2
XSTSn-Tw 250
250 units
5X XtraWhite Buffer w/o MgCl2 + dNTPs
XSTS-Tw 1000
1000 units
5X XtraWhite Buffer w/o MgCl2
XSTSn-Tw 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
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
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
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*
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**
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.
Products
yours
MOLECULAR BIOLOGY
reagents
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