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UPstart™ Taq Antibody, 1 mg/ml

Features

  • Inhibition of >95% Taq activity at 60°C
  • 200 ng UPstart Taq Antibody are blocking 1 U Taq DNA polymerase
  • Exceptionally pure— made in cell culture

Applications

  • Thermolabile inhibition of Taq DNA polymerases
  • Convenient hot-start PCR setup at room temperature
  • Fast polymerase activation with the first PCR denaturation step

Purchase UPstart™ Taq Antibody, 1 mg/ml

Availability: In stock Bulk requests please inquire at oem@biotechrabbit.com

Catalog # Size Package Content Price* Qty
BR1200103 1000 µg (5000 U) 1 ml UPstart Taq Antibody
€445.00

*Does not include applicable tax, shipping & handling, or other charges.

OR

biotechrabbit™ UPstart Taq Antibody is an ultra-pure monoclonal antibody against the Taq DNA polymerase. It is produced in cell culture to ensure highest quality.

The antibody can be used with highly efficient Taq DNA polymerases, provides an excellent method for “hot start” PCR and enhances PCR specificity and sensitivity. PCR hot start prevents the formation of primer–dimers and nonspecific amplification and allows convenient PCR setup at room temperature.

In the first denaturation step of the thermal cycling, the UPstart Taq Antibody becomes nonfunctional and the active Taq DNA polymerase is released. This antibody-mediated hot-start method is significantly more convenient to use than other hot-start methods. Polymerase reactivation using this antibody is faster than with methods using chemically inhibited polymerases.

 

Component

Composition

UPstart Taq Antibody

UPstart Taq Antibody, 1 mg/ml (5 U/µl) in storage buffer containing 50% (v/v) glycerol

 

STORAGE

−20°C (until expiry date – see product label)

 

Unit Definition

One unit is defined as the amount of antibody required to inhibit >95% of 1 unit Taq DNA polymerase at 60°C. One unit UPstart Taq Antibody (200 ng of the antibody) will ensure inhibition of Taq DNA polymerase.

Quality Control
Functional Assay

UPstart Taq Antibody was functionally tested on hot-start PCR.

Inhibition activity

The Taq DNA polymerase activity was inhibited to >95% at 60°C when adding 200 ng UPstart Taq Antibody (1 U) to one unit Taq DNA polymerase.

Mouse genomic DNA contamination assay

An UPstart Taq Antibody sample is analyzed for the presence of contaminating mouse genomic DNA. No mouse genomic DNA was detectable.

 

Prevention of PCR contamination

When assembling the amplification reactions, care should be taken to eliminate the possibility of contamination with undesired DNA.

  • Use separate clean areas for preparation of samples and reaction mixtures and for cycling.
  • Wear fresh gloves. Use sterile tubes and pipette tips with aerosol filters for PCR setup.
  • Use only water and reagents that are free of DNA and nucleases.
  • With every PCR setup, perform a contamination control reaction that does not include template DNA.
Pre-mix preparation of Taq DNA polymerase and UPstart Taq Antibody

A pre-mix will result in a hot-start Taq DNA polymerase that can be used for the setup of hot-start PCR reactions. An example for a pre-mix is given below.

Component

Volume

FINAL CONCENTRATION

Taq DNA Polymerase, 5 U/µl
(i.e. BR0100101)

20 µl

100 U

UPstart Taq Antibody

20 µl

100 U

Gives 100 reactions with 1 unit Hot-start Taq DNA polymerase per reaction.

For one reaction use:

Taq DNA Polymerase /
UPstart Taq Antibody pre-mix

0.4 µl

1 U Hot-Start Taq DNA Polymerase

  • Mix and centrifuge briefly to collect the liquid in the bottom of the tube.
  • The mix can be stored at -20°C for up to 6 months.
Basic Protocol
  • Thaw on ice and mix all reagents well, especially the MgCl2 solution and dNTPs.
  • Keep all reagents and reactions on ice.
  • When setting up multiple reactions, prepare a master mix of water, buffer, dNTPs, UPstart Taq antibody and Taq DNA polymerase. Prepare enough master mix for one more than the actual number reactions. Alternatively, use biotechrabbit Hot-Start PCR Master Mix, 2× (cat. no. BR0200201)
  • Pipet the master mix into thin-walled 0.2 ml PCR tubes.
  • Add template and primers separately if they are not used in all reactions.

Component

Volume

Final concentration

Taq DNA Polymerase, 5 U/µl

0.2 µl

1 U

UPstart Taq Antibody

0.2 µl

1 U

Mix Taq DNA polymerase and UPstart Taq Antibody and incubate at room temperature for 15 min.

Alternatively use pre-mixed Taq DNA polymerase and UPstart Taq Antibody.

10× Reaction Buffer

5 µl

50 mM MgCl2

Variable (standard 1.5 µl)

1.5 mM

 

Higher than 2 mM MgCl2 might increase yield but reduce fidelity

5× PCR Enhancer (optional)

10 µl

10 mM dNTP Mix

1 µl

200 µM

Forward primer

Variable

0.2–1 µM

Reverse primer

Variable

0.2–1 µM

Template DNA

Variable

10 pg–1 μg

 

Use 0.01–1 ng for plasmid or phage DNA and 0.1–1 μg for genomic DNA

Nuclease free water

Variable

 

Total volume

50 µl

 

  • Mix and centrifuge briefly to collect the liquid in the bottom of the tube.
  • Place in the PCR cycler.
Cycling Program

Step

Temperature

Time

Cycles

Initial activation

94°C

3–5 min

1

Denaturation

94°C

30 s

25–35

Annealing

55°C

15–30 s

25–35

 

Approximately 5°C below Tm of primers

Extension

72°C

30–60 s/kb

25–35

Final extension

72°C

5 min

1

 

To extend all incomplete PCR products

Storage in the cycler

4°C

Indefinitely

1

  • Add loading dye solution (see DNA Loading Dye, 6×, cat. no. BR0800301) to the reactions to analyze PCR products on a gel or store them at −20°C.
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