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MilliporeSigma

R9507

Sigma-Aldrich

Taq I from Thermus aquaticus

recombinant, expressed in E. coli (Strain that carries a Taq I overproducing plasmid.), Restriction Enzyme

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204

recombinant

expressed in E. coli (Strain that carries a Taq I overproducing plasmid.)

grade

for molecular biology

form

buffered aqueous glycerol solution

concentration

10,000 units/mL

shipped in

wet ice

storage temp.

−20°C

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Specificity

Recognition sequence: 5′-T/CGA-3′
Ligation and recutting results: After 2-10-fold Taq I overdigestion of 1 μg λ DNA substrate, results in >95% cutting, >85% of fragments can be ligated, and >95% recut.
Heat inactivation: 80 °C for 20 minutes.

Application

TaqI is a restriction endonuclease used in molecular biology applications to cleave DNA moledcules at the recognition site 5′-T/CGA-3′, generating fragments with 5′-cohesive ends.

Other Notes

Supplied with 10x Restriction Enzyme Buffer SB (B8781).
Comment: Taq I will only partially cleave DNA isolated from E. coli strains that have the dam methylase (dam+ strains). Taq I is inefficient in digesting single stranded DNA . Overlapping dam methylation will block cleavage by Taq I. Activity of the enzyme is enhanced by BSA and higher temperatures, >37 °C. Optimal temperature is 65 °C.

Physical form

Solution in 20 mM Tris-HCl, pH 8.0, 1 mM EDTA, 100 mM NaCl, 300 mM KCl, 7 mM 2-mercaptoethanol, 50% glycerol (v/v) at 4 °C

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Katherine Paola Luna-Marín et al.
Parasitology research, 105(2), 519-528 (2009-04-07)
Chagas disease is a severe public health problem in Latin-American countries. In Colombia, the predominance of Trypanosoma cruzi I has been described in the literature, with a broad heterogeneity between strains. However, most of the studies carried out centered on
E Reizenstein et al.
Journal of clinical microbiology, 34(4), 810-815 (1996-04-01)
A nested PCR, using a 239-bp sequence in the pertussis toxin promoter region, was developed and evaluated. The assay differentiates Bordetella pertussis, Bordetella parapertussis, and Bordetella bronchiseptica by restriction enzyme analysis of the amplified fragments. The diagnostic performance of the
S Sato et al.
Proceedings of the National Academy of Sciences of the United States of America, 74(2), 542-546 (1977-02-01)
A sequence-specific endonuclease, Taq I, of novel specificity has been partially purified from an extreme thermophile, Thermus aquaticus. The enzyme cleaves bacteriophage lambda DNA at many (greater than 30) sites and bacteriophage psiX174 RF DNA at 10 sites. The enzyme
Y Gruenbaum et al.
Nucleic acids research, 9(11), 2509-2515 (1981-06-11)
Hemimethylated duplex DNA of the bacteriophage phi X 174 was synthesized using primed repair synthesis is in vitro with E. coli DNA polymerase I followed by ligation to produce the covalently closed circular duplex (RFI). Single-stranded phi X DNA was
Jaroslav Jelinek et al.
Epigenetics, 7(12), 1368-1378 (2012-10-19)
Genome wide analysis of DNA methylation provides important information in a variety of diseases, including cancer. Here, we describe a simple method, Digital Restriction Enzyme Analysis of Methylation (DREAM), based on next generation sequencing analysis of methylation-specific signatures created by

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