Taq DNA Polymerase Mutants and 2′-Modified Sugar Recognition.

chemical modifications to DNA, such as modification 2 ‘, is expected to increase the utility of DNA biotechnology; However, other forms of modification of DNA is limited by their inability to effectively synthesized by a DNA polymerase enzyme. Previous efforts have identified a mutant Thermus aquaticus DNA polymerase I (Taq) enzyme that can recognize DNA 2’-modified nucleotides.

While these modified nucleotides recognize the mutant enzyme, they are unable to synthesize the full length of the modified DNA; thus, further engineering is required for this enzyme. Here, we describe a comparative biochemical studies that identify the useful properties, but previously uncharacterized, this enzyme; an enzyme, SFM19, able to recognize various 2′-modified nucleotides that is broader than that previously examined, including fluoro, Azido and amino modification.

To understand the molecular origin of these differences, we also identified certain amino acids and combinations of amino acids that contribute most to the unusual activity that were previously grown. Our data indicate that the negatively charged amino acid residues 614 and mutation of steric gate, E615, to Glycine create the optimal combination for the synthesis of modified oligonucleotides. The study provides a better understanding of the origins of the mutation of 2′-modified substrate recognition and identify SFM19 as the best candidate for advanced engineering, whether through rational design or directed evolution.

Taq DNA Polymerase Mutants and 2'-Modified Sugar Recognition.
Taq DNA Polymerase Mutants and 2′-Modified Sugar Recognition.

A new iridoid, verbascoside and derivatives with inhibitory activity against Taq DNA polymerase.

DNA polymerases are enzymes that play an important role in DNA metabolism such as replication, repair, transcription, recombination, and chromosome segregation during mitosis. Here we report the isolation of a new iridoid (6-epi-catalpol, 2) and the per-O-acetyl-verbascoside (11) of the aerial parts of Buddleja cordobensis Grisebach (Buddlejaceae). Of the compound 2, we have obtained eight compounds with chemical transformations.

This group of compounds at a concentration of 500μM tested against Taq DNA polymerase. Compound 11 (per-O-acetyl-verbascoside) was the most active with IC50 of 1.21 ± 0.18μM; Compound 9, 2 and 8 are strong inhibitors with IC50 values ​​of 5:57 ± 0.70, 21.62 ± 0.22 and 78.13 ± 0.93μM, respectively. Compound 11 and 9 could be the structure of a new leader for the development of anticancer drugs chemotherapy and useful tools to investigate the activity of DNA polymerase.


Oriented methods and activity-preserved immobilization of biologically active proteins based on the concept of active-site masking and previously reported kinetic control. We extended our research and found that hydrophobic surfaces have a noticeable effect on the activity of the active-protected site move (PIM) Taq DNA polymerase in a mixture of assembled monolayer (SAM) is produced on the Au surface. Hydrophobic SAM created using 12-mercaptododecanoic acid and 1-heptanethiol. Taq DNA polymerase activity generated is measured by PCR amplification and compared with previously reported values ​​obtained with the hydrophilic SAM. The maximum activity of the immobilized Taq DNA polymerase was achieved in 17.5% of 12-mercaptododecanoic acid and within 90 minutes of reaction time is higher than that obtained with the hydrophilic SAM; The maximum activity by 5% 12-mercaptododecanoic acid and at 10 minutes. To apply to a commercial level, moving enzymes have to be stable, reusable and can be stored.

DNA polymerase ? (Rat)

10-102 100ug
EUR 1107.6
Description: The DNA polymerase ? (Rat) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA Polymerase

BA00103 500U
EUR 104.4
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Taq DNA Polymerase

BA00104 1000U
EUR 147.6
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Taq DNA Polymerase

BA00105 2500U
EUR 278.4
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Pfu DNA Polymerase

BA00503 500U
EUR 174
Description: High quality Pfu polymerase for different PCR variations and downstream applications.

Pfu DNA Polymerase

BA00504 1000U
EUR 286.8
Description: High quality Pfu polymerase for different PCR variations and downstream applications.

Pfu DNA Polymerase

BA00505 2500U
EUR 626.4
Description: High quality Pfu polymerase for different PCR variations and downstream applications.

Taq DNA polymerase

BT10101 500U
EUR 96
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Taq DNA polymerase

BT10102 1000U
EUR 130.8
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Taq DNA polymerase

BT10103 2000U
EUR 200.4
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Taq DNA Polymerase

9001-2500 each
EUR 614.4

Taq DNA Polymerase

9001-500 each
EUR 229.2

PFU DNA Polymerase

9003-2500 each
EUR 614.4

PFU DNA Polymerase

9003-500 each
EUR 216

Laq? DNA Polymerase

9004-2500 each
EUR 732

Laq? DNA Polymerase

9004-500 each
EUR 261.6

Taq DNA Polymerase

L7051001 1000 unit
EUR 159

Taq DNA Polymerase

L7051200 200 unit
EUR 41

Pfu DNA Polymerase

enz-265 100U
EUR 145
Description: Recombinant Pfu DNA Polymerase

Pfu DNA Polymerase

S116 1x250 units
EUR 91.2

Pfu DNA Polymerase

S117 2x250 units
EUR 112.8

Pfu DNA Polymerase

S118 10x250 units
EUR 363.6

Bst DNA Polymerase

S600 2000 U
EUR 128.4

Taq DNA Polymerase

EQ005 100μl/500U
EUR 50

Pfu DNA Polymerase

EQ008 50μl
EUR 68

MyFi DNA Polymerase

BIO-21117 250 Units Ask for price

MyFi DNA Polymerase

BIO-21117/S Sample Ask for price

MyFi DNA Polymerase

BIO-21118 500 Units Ask for price

MyFi DNA Polymerase

BIO-21119 2500 Units Ask for price

DNA Polymerase beta

E8ET1705-12 100ul
EUR 275
Description: Available in various conjugation types.

Taq DNA Polymerase (3000U)

9K-001-0002 3000U
EUR 582

Taq DNA Polymerase (6000U)

9K-001-0033 6000U
EUR 1234.5

Taq DNA Polymerase (1000U)

9K-001-0035 1000U
EUR 418.62

MyTaq DNA Polymerase

BIO-21105 500 units Ask for price

MyTaq DNA Polymerase

BIO-21105/S Sample Ask for price

MyTaq DNA Polymerase

BIO-21106 2500 units Ask for price

MyTaq DNA Polymerase

BIO-21107 5000 units Ask for price

Ready? DNA Polymerase

M1146-1000 each
EUR 398.4

Ready? DNA Polymerase

M1146-10000 each
EUR 1279.2

Ready? DNA Polymerase

M1146-5000 each
EUR 960

Phi29 DNA Polymerase

M1239-1000 each
EUR 373.2

Kodaq DNA Polymerase

G498 250 U (50 ul)
EUR 104.4

Kodaq DNA Polymerase

G499 1000 U (200 ul)
EUR 189.6

DNA polymerase delta

E8ER1907-56 100ul
EUR 275
Description: Available in various conjugation types.

phi29 DNA Polymerase

RK21002 1250U
EUR 4

HotTaq DNA Polymerase

BA00203 500U
EUR 174
Description: High quality HotTaq polymerase for different PCR variations and downstream applications.

HotTaq DNA Polymerase

BA00204 1000U
EUR 286.8
Description: High quality HotTaq polymerase for different PCR variations and downstream applications.

HotTaq DNA Polymerase

BA00205 2500U
EUR 626.4
Description: High quality HotTaq polymerase for different PCR variations and downstream applications.

RedTaq DNA Polymerase

BA00303 500U
EUR 147.6
Description: High quality RedTaq polymerase for different PCR variations and downstream applications.

RedTaq DNA Polymerase

BA00304 1000U
EUR 235.2
Description: High quality RedTaq polymerase for different PCR variations and downstream applications.

RedTaq DNA Polymerase

BA00305 2500U
EUR 495.6
Description: High quality RedTaq polymerase for different PCR variations and downstream applications.

BIOTAQ DNA Polymerase

BIO-21040 500 Units Ask for price

BIOTAQ DNA Polymerase

BIO-21060 2500 Units Ask for price

Ranger DNA Polymerase

BIO-21121 250 Units Ask for price

Ranger DNA Polymerase

BIO-21121/S Sample Ask for price

Ranger DNA Polymerase

BIO-21122 500 Units Ask for price

HotTaq DNA polymerase

BT10201 500U
EUR 144
Description: High quality HotTaq polymerase for different PCR variations and downstream applications.

HotTaq DNA polymerase

BT10202 1000U
EUR 228
Description: High quality HotTaq polymerase for different PCR variations and downstream applications.

AceTaq DNA Polymerase

P401-d1 250 U
EUR 163.2

AceTaq DNA Polymerase

P401-d2 1000 U
EUR 272.4

AceTaq DNA Polymerase

P401-d3 3000 U
EUR 536.4

Breeze? DNA Polymerase

M1148-1000 each
EUR 1246.8

Breeze? DNA Polymerase

M1148-250 each
EUR 464.4

AceTaq DNA Polymerase

P401-MD1 250 U
EUR 46.4

Taq DNA Polymerase (500U)

9K-001-0001 500U
EUR 209.29

Distant? DNA Polymerase

M1150-1000 each
EUR 823.2

Distant? DNA Polymerase

M1150-250 each
EUR 333.6

Advance? DNA Polymerase

M1151-1000 each
EUR 895.2

Advance? DNA Polymerase

M1151-250 each
EUR 373.2

BlasTaq DNA Polymerase

E36G894 400 rxn (200 μl)
EUR 528.57

IMMOLASE DNA Polymerase

BIO-21046 250 Units Ask for price

IMMOLASE DNA Polymerase

BIO-21047 500 Units Ask for price

IMMOLASE DNA Polymerase

BIO-21048 5000 Units Ask for price

ACCUZYME DNA Polymerase

BIO-21051 250 Units Ask for price

ACCUZYME DNA Polymerase

BIO-21052 500 Units Ask for price

MangoTaq DNA Polymerase

BIO-21078 5000 Units Ask for price

MangoTaq DNA Polymerase

BIO-21082 2000 Units Ask for price

MangoTaq DNA Polymerase

BIO-21083 1000 Units Ask for price

VELOCITY DNA Polymerase

BIO-21098 250 Units Ask for price

VELOCITY DNA Polymerase

BIO-21099 500 Units Ask for price

DNA Polymerase Antibody

E11-11836C 100μg
EUR 225
Description: Available in various conjugation types.

Taq HS DNA Polymerase

P132-d1 500 U
EUR 38.28

Taq HS DNA Polymerase

P132-d2 1,000 U
EUR 71.34

Taq HS DNA Polymerase

P132-d3 5,000 U
EUR 324.8

Outstretched? DNA Polymerase

M1152-1000 each
EUR 960

Outstretched? DNA Polymerase

M1152-250 each
EUR 398.4

DNA polymerase ? (C-His)

10-105 50ug
EUR 637.2
Description: The DNA polymerase ? (C-His) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA Polymerase (PCR)

G008 5000 U (1.0 ml)
EUR 246

Taq DNA Polymerase (PCR)

G009 1000 U (200 ul)
EUR 104.4

Taq DNA Polymerase (PCR)

G126 10000 U (2 x 1.0 ml)
EUR 370.8

MyTaq HS DNA Polymerase

BIO-21111 250 units Ask for price

MyTaq HS DNA Polymerase

BIO-21111/S Sample Ask for price

MyTaq HS DNA Polymerase

BIO-21112 1000 units Ask for price

MyTaq HS DNA Polymerase

BIO-21113 2500 units Ask for price

Taq Plus DNA Polymerase

P201-01 250 U
EUR 147.6

Taq Plus DNA Polymerase

P201-02 1000 U
EUR 213.6

Taq Plus DNA Polymerase

P201-03 3000 U
EUR 382.8

ACTaq? Taq DNA Polymerase, 1000U

E2100-1000U each
EUR 260.4

T4 DNA Polymerase - 500 units

3222 1/EA
EUR 247.2

Taq DNA polymerase (+dNTPs)

02-001 200U
EUR 183.6
Description: The Taq DNA polymerase (+dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA polymerase (+dNTPs)

02-001-5 5×200U
EUR 308.4
Description: The Taq DNA polymerase (+dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA polymerase (-dNTPs)

02-011 200U
EUR 168
Description: The Taq DNA polymerase (-dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA polymerase (-dNTPs)

02-011-5 5×200U
EUR 261.6
Description: The Taq DNA polymerase (-dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Pfu DNA polymerase (+dNTPs)

02-021 200U
EUR 214.8
Description: The Pfu DNA polymerase (+dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Pfu DNA polymerase (+dNTPs)

02-021-5 5×200U
EUR 402
Description: The Pfu DNA polymerase (+dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Pfu DNA polymerase (-dNTPs)

02-031 200U
EUR 199.2
Description: The Pfu DNA polymerase (-dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Pfu DNA polymerase (-dNTPs)

02-031-5 5×200U
EUR 339.6
Description: The Pfu DNA polymerase (-dNTPs) is available in Europe and for worldwide shipping via Gentaur.

T DNA Polymerase Enzyme

abx071008-250U 250 U
EUR 226.8

T DNA Polymerase Enzyme

abx071008-3kU 3 kU
EUR 543.6

T DNA Polymerase Enzyme

abx071008-500U 500 U
EUR 260.4

MyTaq Red DNA Polymerase

BIO-21108 500 units Ask for price

MyTaq Red DNA Polymerase

BIO-21108/S Sample Ask for price

MyTaq Red DNA Polymerase

BIO-21109 2500 units Ask for price

MyTaq Red DNA Polymerase

BIO-21110 5000 units Ask for price

DNA polymerase delta p50

E8ER1907-57 100ul
EUR 275
Description: Available in various conjugation types.

ACTaq? Long DNA Polymerase, 1000U

E2200-1000U each
EUR 282

Taq DNA Polymerase - 5,000 units

3245 1/EA
EUR 620.4

Fire Start? DNA Polymerase

M1149-1000 each
EUR 764.4

Fire Start? DNA Polymerase

M1149-250 each
EUR 307.2

Taq DNA Polymerase, 5units/㎕

T2200-050 500units
EUR 157.2

Taq DNA Polymerase, 5units/㎕

T2200-100 2x500 units
EUR 230.4

Taq DNA Polymerase, 5units/㎕

T2200-200 4x500 units
EUR 375.6

ACTaq? Taq DNA Polymerase, 250U

E2100-250U each
EUR 122.4

DNA Polymerase λ Antibody

34098-100ul 100ul
EUR 302.4

DNA Polymerase λ Antibody

34098-50ul 50ul
EUR 224.4

DNA Polymerase β Antibody

33357-100ul 100ul
EUR 302.4

DNA Polymerase β Antibody

33357-50ul 50ul
EUR 224.4

DNA Polymerase ζ Antibody

33602-100ul 100ul
EUR 302.4

DNA Polymerase ζ Antibody

33602-50ul 50ul
EUR 224.4

DNA Polymerase θ Antibody

33611-100ul 100ul
EUR 302.4

DNA Polymerase θ Antibody

33611-50ul 50ul
EUR 224.4

PIM stable Taq DNA polymerase attached to the surface and can be used for as many as 10 runs PCR comparable with enzyme-phase solution. Even after 56 days of storage at 4 ° C, the immobilized enzyme classified as 70% of the initial PIM enzyme activity. These data indicate that the PIM Taq DNA polymerase can be used for a variety of commercial applications.