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repliQa HiFi ToughMix

Superior speed and inhibitor tolerance
Features & Benefits
  • High Fidelity – >90x wild type Taq
  • Extreme Speed – up to 3x faster PCR results with extension rates as fast as 1 kb/sec*
  • Tough Tested – tolerant to a wide range of PCR inhibitors
  • Superior Sensitivity – higher yields from lower inputs as little as 2 pg
  • Long Range – amplify +24 kb gDNA, +40 kb λDNA

 

*for fragments less than 1 kb in size

 

repliQa HiFi ToughMix is intended for molecular biology applications. This product is not intended for the diagnosis, prevention or treatment of a disease.

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repliQa HiFi ToughMix
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Description

The repliQa HiFi ToughMix is a 2x, ready-to-use master mix that contains all the components for high fidelity PCR amplification, including a genetically modified DNA polymerase coupled with hot start antibodies. This unique, next generation master mix provides 90x higher fidelity compared to Taq, while reducing time to PCR results by 2-3x. The extreme speed is enabled by extension times as fast as 1-10 kb/sec depending on target length. The enzyme is coupled with the industry leading ToughMix which is tolerant to a wide variety of inhibitors making it suitable for routine PCR, cloning, amplicon sequencing and site directed mutagenesis.

What Customers Say


I used NEB Q5 for the same plasmid for PCR, same annealing temperature. Only the repliQa HiFi toughMix gave me the correct size products. It is very fast and works much better than NEB Q5 for difficult plasmids in PCR.

Dr. Kara C.
UT Southwestern Medical Center

Details

Details

Contents

2x reaction buffer containing optimized concentrations of MgCl2, dNTP’s and proprietarily formulated HiFi polymerase, hot start antibodies and ToughMix chemistry

Customer Testimonials

Customer Testimonials

repliQa HiFi ToughMix

"All I can say from testing repliQa HiFi ToughMix is that the results are jaw-dropping. The Platinum™ SuperFi II PCR Master Mix did nothing in the same amount of time under the same conditions. The assay I was testing out is a new way to amplify entire mitogenomes as a single amplicon (~15kb). This is a game changer, cutting the PCR time from ~8.5hrs to 1.5hrs, and way more product is generated. I am not often floored by data, but these results are amazing. I have another project I am working on with this assay and I am going to switch to this polymerase for sure. Good work Quantabio!"

A. K. | Post Doc, BCM
repliQa HiFi ToughMix

"The kit have a great power of amplification and extreme fast speed, I just need one hour to get result which I usually spent three hours before."

Simon S. | Professor, Tennessee State University
repliQa HiFi ToughMix

"This can amplify the tough template for SURE. I was struggled with the tough template that showed poor quality results with other many PCR enzymes. This repliQa saved my life and eventually gave me the clear and strong band by gel."

Lili C. | Post Doc, USC
repliQa HiFi ToughMix

"I used NEB Q5 for the same plasmid for PCR, same annealing temperature. Only the repliQa HiFi toughMix gave me the correct size products. It is very fast and works much better than NEB Q5 for difficult plasmids in PCR."

Dr. Kara C. | UT Southwestern Medical Center
repliQa HiFi ToughMix

"Worked great amplifying two gene target from plasmid DNA. It was the first time I have performed a two step reaction and it worked great. It was awesome running everything in 23 minutes too."

Dr. Brandon L. | University of Nebraska
repliQa HiFi ToughMix

"Worked great amplifying two gene target from plasmid DNA. It was the first time I have performed a two step reaction and it worked great. It was awesome running everything in 23 minutes too."

Dr. Brandon L. | University of Nebraska

Details

Contents

2x reaction buffer containing optimized concentrations of MgCl2, dNTP’s and proprietarily formulated HiFi polymerase, hot start antibodies and ToughMix chemistry

Performance Data

Resources

Publications

Essential Oils Reduce Grey Mould Rot of Apples and Modify the Fruit Microbiome during Postharvest Storage
Giada Schiavon - 2022
Abstract
Botrytis cinerea is the causal agent of grey mould rot of apples. The efficacy of biofumigation with thyme (Thymus vulgaris), savoury (Satureja montana), and basil (Ocimum basilicum) essential oils (EOs) at 1%, 0.5%, and 0.1% concentrations were tested against B. cinerea. In vitro, the results showed 100% growth inhibition at 1% concentration for all oils. Subsequent biofumigation experiments on apples of cultivar ‘Opal’ with 1% EOs showed that, after 60 d storage, thyme and savoury EOs significantly reduced grey mould rot incidence (average incidence 2% for both treatments) compared to the control (7%). Analyses of quality indicated slightly higher fruit firmness for 1% thyme at 30 d and slightly higher titratable acidity for 1% thyme and savoury at 60 d. Sampling of the atmosphere inside the cabinets was performed to characterize and quantify the volatile components of EOs released through biofumigation. Though thymol and p-cymene were the main components of thyme EO, the antimicrobial activity was mainly due to the presence of thymol and, to a lower extent, of carvacrol. In savoury EO, carvacrol and p-cymene were the main components, whereas in basil EO, linalool and estragole were mainly present. Metabarcoding analyses showed that the epiphytic microbiome had higher richness and evenness compared to their endophytic counterpart. By the end of shelf-life, treatments with thyme EO reduced B. cinerea abundance compared to the inoculated control for both endophytes (from 36.5% to 1.5%) and epiphytes (from 7.0% to 0.7%), while favouring a significant increase in Penicillium species both in endophytes (from 0.2% to 21.5%) and epiphytes (from 0.5% to 18.6%). Results indicate that thyme EO (1%) and savoury EO (1%) are equally effective in hampering grey mould rot development in vivo.
Simple and reliable in situ CRISPR-Cas9 nuclease visualization tool is ensuring efficient editing in Streptomyces species
Alen Pšeničnik - 2022
Abstract
CRISPR-Cas9 technology has emerged as a promising tool for genetic engineering of Streptomyces strains. However, in practice, numerous technical hurdles have yet to be overcome when developing robust editing procedures. Here, we developed an extension of the CRISPR-Cas toolbox, a simple and reliable cas9 monitoring tool with transcriptional fusion of cas9 nuclease to a beta glucuronidase (gusA) visual reporter gene. The Cas9-SD-GusA tool enables in situ identification of cells expressing Cas9 nuclease following the introduction of the plasmid carrying the CRISPR-Cas9 machinery. Remarkably, when the Cas9-SD-GusA system was applied under optimal conditions, 100% of the colonies displaying GusA activity carried the target genotype. In contrast, it was shown that the cas9 sequence had undergone major recombination events in the colonies that did not exhibit GusA activity, giving rise to “escaper colonies” carrying unedited genotype. Our approach allows a simple detection of “escaper” phenotype and serves as an efficient CRISPR-Cas9 optimisation tool.
Genomic Characterisation of Canis Familiaris Papillomavirus Type 24, a Novel Papillomavirus Associated with Extensive Pigmented Plaque Formation in a Pug Dog
John S. Munday - 2022
Abstract
Numerous large dark plaques developed over the ventrum, legs and head of a 9-year-old pug dog over a 4-year-period. Histology confirmed a diagnosis of viral pigmented plaque and a short section of a novel papillomavirus (PV) type was amplified using consensus PCR primers. Taking advantage of the circular nature of PV DNA, ‘outward facing’ PCR primers allowed amplification of the full sequence. As this is the 24th PV known to infect dogs, the novel PV was designated canine papillomavirus (CPV) type 24. The CPV24 genome contained putative coding regions for 5 early proteins and 2 late ones. The CPV24 open reading frame L1 showed the highest (78.2%) similarity to CPV4 and phylogenetic analysis showed that CPV24 clustered with CPV4 and CPV16 suggesting CPV24 is the third species 2 Chipapillomavirus type identified in dogs. This is the third report of extensive pigmented plaques covering a high proportion of the skin. Both previous cases were caused CPV4 and, considering the high genetic similarity between CPV4 and CP24, infection by these CPV types may predispose to more severe clinical disease. In addition, as plaques caused by CPV16 appear more likely to progress to neoplasia, the detection of a species 2 Chipapillomavirus within a pigmented plaque may indicate the potential for more severe disease.
Essential Oils Reduce Grey Mould Rot of Apples and Modify the Fruit Microbiome during Postharvest Storage
Giada Schiavon - 2023
Abstract
Botrytis cinerea is the causal agent of grey mould rot of apples. The efficacy of biofumigation with thyme (Thymus vulgaris), savoury (Satureja montana), and basil (Ocimum basilicum) essential oils (EOs) at 1%, 0.5%, and 0.1% concentrations were tested against B. cinerea. In vitro, the results showed 100% growth inhibition at 1% concentration for all oils. Subsequent biofumigation experiments on apples of cultivar ‘Opal’ with 1% EOs showed that, after 60 d storage, thyme and savoury EOs significantly reduced grey mould rot incidence (average incidence 2% for both treatments) compared to the control (7%). Analyses of quality indicated slightly higher fruit firmness for 1% thyme at 30 d and slightly higher titratable acidity for 1% thyme and savoury at 60 d. Sampling of the atmosphere inside the cabinets was performed to characterize and quantify the volatile components of EOs released through biofumigation. Though thymol and p-cymene were the main components of thyme EO, the antimicrobial activity was mainly due to the presence of thymol and, to a lower extent, of carvacrol. In savoury EO, carvacrol and p-cymene were the main components, whereas in basil EO, linalool and estragole were mainly present. Metabarcoding analyses showed that the epiphytic microbiome had higher richness and evenness compared to their endophytic counterpart. By the end of shelf-life, treatments with thyme EO reduced B. cinerea abundance compared to the inoculated control for both endophytes (from 36.5% to 1.5%) and epiphytes (from 7.0% to 0.7%), while favouring a significant increase in Penicillium species both in endophytes (from 0.2% to 21.5%) and epiphytes (from 0.5% to 18.6%). Results indicate that thyme EO (1%) and savoury EO (1%) are equally effective in hampering grey mould rot development in vivo.
Fine-scale spatial variation shape fecal microbiome diversity and composition in black- tailed prairie dogs (Cynomys ludovicianus)
Sufia A. Neha - 2022
Abstract
Background Host associated gut microbiota are important in understanding the coevolution of host-microbe, it’s causes and consequences that may help wildlife population to adapt to its rapid climatic changes. Mammalian gut microbiota composition and diversity may be affected by a variety of factors including geographic variation, seasonal variation in diet, habitat disturbance, environmental conditions, age, and sex. However, there have been few studies that have examined how ecological and environmental factors influence gut microbiota composition in animals' natural environments. In this study, we explore how host habitat, geographical location and environmental factors affect the fecal microbiota of Cynomys ludovicianus at a small spatial scale. We collected fecal samples from five geographically distinct locations in Texas Panhandle occupying habitat classified as urban and rural areas using high throughput 16S rRNA gene amplicon sequencing. Results The results showed that microbiota of fecal samples was largely dominated by phylum Bacteroidetes. Fecal microbiome diversity and composition differed significantly across sampling sites and habitats. Prairie dogs inhabiting urban areas showed reduced fecal diversity due to more homogenous environment and anthropogenic disturbance. Urban prairie dog colonies displayed greater phylogenetic variation than those in rural habitats. Differentially abundant analysis revealed that bacterial species pathogenic to humans and animals were highly abundant in urban areas which indicates that host health and fitness might be negatively affected. Random forest model identified Alistipes shahii as the important species driving the changes in fecal microbiome composition. Despite the effects of habitat and geographic location of host, we found a strong correlation with environmental factors- average maximum temperature was the best predictor of prairie dog fecal microbial diversity. Conclusions Our findings suggest that reduction in alpha diversity in conjunction with greater dispersion in beta diversity could be indicative of declining host health in urban areas which could help determine in future conservation efforts. Moreover, several bacterial species pathogenic to humans and other animals were highly abundant in prairie dog colonies near urban areas, which may in turn adversely affect host phenotype and fitness.
A Non-Destructive High-Speed Procedure to Obtain DNA Barcodes from Soft-Bodied Insect Samples with a Focus on the Dipteran Section of Schizophora
Frederik Stein - 2022
Abstract
While the need for biodiversity research is growing, paradoxically, global taxonomical expertise is decreasing as a result of the neglected funding for young academics in taxonomy. Non-destructive approaches for DNA barcoding are necessary for a more efficient use of this dwindling expertise to fill gaps, and identify incorrect entries in sequence databases like BOLD or GenBank. They are efficient because morphological re-examination of species vouchers is still possible post-DNA barcoding. Non-destructive approaches for Diptera with a comprehensive species representation or the consideration of diagnostic fragile morphological characters are missing. Additionally, most non-destructive approaches combine a time intensive and non-destructive digestion step with common DNA extraction methods, such as commercial kits or CTAB DNA isolation. We circumvented those approaches and combined a modified non-destructive TE buffer high-speed DNA extraction, with a PCR inhibitor-resistant PCR reaction system, to a non-destructive DNA barcoding procedure for fresh and frozen samples of the Schizophora (Diptera). This method avoids morphological impairment and the application of harmful chemicals, is cost and time effective, restricts the need for laboratory equipment to a minimum, and prevents cross-contamination risk during DNA isolation. Moreover, the study indicates that the presented non-destructive DNA barcoding procedure is transferable to other soft-bodied insects. We suggest that PCR inhibitor-resistant master mixes enable the development of new—and the modification of existing—non-destructive approaches with the avoidance of further DNA template cleaning.
A Non-Destructive High-Speed Procedure to Obtain DNA Barcodes from Soft-Bodied Insect Samples with a Focus on the Dipteran Section of Schizophora
Frederick Stein - 2022
Abstract
While the need for biodiversity research is growing, paradoxically, global taxonomical expertise is decreasing as a result of the neglected funding for young academics in taxonomy. Non-destructive approaches for DNA barcoding are necessary for a more efficient use of this dwindling expertise to fill gaps, and identify incorrect entries in sequence databases like BOLD or GenBank. They are efficient because morphological re-examination of species vouchers is still possible post-DNA barcoding. Non-destructive approaches for Diptera with a comprehensive species representation or the consideration of diagnostic fragile morphological characters are missing. Additionally, most non-destructive approaches combine a time intensive and non-destructive digestion step with common DNA extraction methods, such as commercial kits or CTAB DNA isolation. We circumvented those approaches and combined a modified non-destructive TE buffer high-speed DNA extraction, with a PCR inhibitor-resistant PCR reaction system, to a non-destructive DNA barcoding procedure for fresh and frozen samples of the Schizophora (Diptera). This method avoids morphological impairment and the application of harmful chemicals, is cost and time effective, restricts the need for laboratory equipment to a minimum, and prevents cross-contamination risk during DNA isolation. Moreover, the study indicates that the presented non-destructive DNA barcoding procedure is transferable to other soft-bodied insects. We suggest that PCR inhibitor-resistant master mixes enable the development of new—and the modification of existing—non-destructive approaches with the avoidance of further DNA template cleaning.
A diverse group of underappreciated zygnematophytes deserves in-depth exploration
Anna Busch - 2022
Abstract
The conjugating green algae (Zygnematophyceae) are the closest relatives of land plants and hence are of great evolutionary interest. Besides the popular placoderm desmids and the filamentous species, there is an underappreciated diversity of unicellular zygnematophytes with a much “simpler” morphology and smooth cell walls – traditionally referred to as “saccoderm desmids”. These saccoderm desmids have a broad geographic distribution and are ecologically diverse. Many species inhabit terrestrial habitats such as dead wood, rock surfaces and glacial ice. Furthermore, several of the saccoderm genera have turned out to be highly polyphyletic and are typically poorly captured by environmental sequencing approaches. One of these genera is Mesotaenium Nägeli, with ~70 described species and infraspecific taxa united only by a relatively simple (plate- or ribbon-like) chloroplast structure. Here, we shed some light on these inconspicuous yet important members of the algal flora and present an updated rbcL gene phylogeny of the conjugating green algae, including several new lineages of Mesotaenium-like zygnematophytes. We depict the subtle morphological differences among these lineages and discuss our updated phylogeny in the light of ecology and cell biology. In addition, we review published knowledge on photoprotective strategies of zygnematophytes, the latest insights into their evolutionary innovations, and address some technical challenges in exploring this elusive group of microalgae. Some new observations of saccoderm desmids in undersampled habitats and of their microbial associates (e.g., parasites) point to interesting avenues for future research.
Opposite effects of stress on effortful motivation in high and low anxiety are mediated by CRHR1 in the VTA
Ioannis Zalachoras - 2022
Abstract
Individuals frequently differ in their behavioral and cognitive responses to stress. However, whether motivation is differently affected by acute stress in different individuals remains to be established. By exploiting natural variation in trait anxiety in outbred Wistar rats, we show that acute stress facilitates effort-related motivation in low anxious animals, while dampening effort in high anxious ones. This model allowed us to address the mechanisms underlying acute stress–induced differences in motivated behavior. We show that CRHR1 expression levels in dopamine neurons of the ventral tegmental area (VTA)—a neuronal type implicated in the regulation of motivation—depend on animals’ anxiety, and these differences in CRHR1 expression levels explain the divergent effects of stress on both effortful behavior and the functioning of mesolimbic DA neurons. These findings highlight CRHR1 in VTA DA neurons—whose levels vary with individuals’ anxiety—as a switching mechanism determining whether acute stress facilitates or dampens motivation.
Bacillus velezensis Identification and Recombinant Expression, Purification, and Characterization of Its Alpha-Amylase
Xiaodong Zhang - 2021
Abstract
Amylases account for about 30% of the global market of industrial enzymes, and the current amylases cannot fully meet industrial needs. This study aimed to identify a high α-amylase producing bacterium WangLB, to clone its α-amylase coding gene, and to characterize the α-amylase. Results showed that WangLB belonged to Bacillus velezensis whose α-amylase gene was 1980 bp coding 659 amino acids designated as BvAmylase. BvAmylase was a hydrophilic stable protein with a signal peptide and a theoretical pI of 5.49. The relative molecular weight of BvAmylase was 72.35 kDa, and was verified by SDS-PAGE. Its modeled structure displayed that it was a monomer composed of three domains. Its optimum temperature and pH were 70 °C and pH 6.0, respectively. It also showed high activity in a wide range of temperatures (40–75 °C) and a relatively narrow pH (5.0–7.0). It was a Ca2+-independent enzyme, whose α-amylase activity was increased by Co2+, Tween 20, and Triton X-100, and severely decreased by SDS. The Km and the Vmax of BvAmylase were 3.43 ± 0.53 and 434.19 ± 28.57 U/mg. In conclusion, the α-amylase producing bacterium WangLB was identified, and one of its α-amylases was characterized, which will be a candidate enzyme for industrial applications.
Click here to see all Publications

Customer Testimonials

repliQa HiFi ToughMix

"All I can say from testing repliQa HiFi ToughMix is that the results are jaw-dropping. The Platinum™ SuperFi II PCR Master Mix did nothing in the same amount of time under the same conditions. The assay I was testing out is a new way to amplify entire mitogenomes as a single amplicon (~15kb). This is a game changer, cutting the PCR time from ~8.5hrs to 1.5hrs, and way more product is generated. I am not often floored by data, but these results are amazing. I have another project I am working on with this assay and I am going to switch to this polymerase for sure. Good work Quantabio!"

A. K. | Post Doc, BCM
repliQa HiFi ToughMix

"The kit have a great power of amplification and extreme fast speed, I just need one hour to get result which I usually spent three hours before."

Simon S. | Professor, Tennessee State University
repliQa HiFi ToughMix

"This can amplify the tough template for SURE. I was struggled with the tough template that showed poor quality results with other many PCR enzymes. This repliQa saved my life and eventually gave me the clear and strong band by gel."

Lili C. | Post Doc, USC
repliQa HiFi ToughMix

"I used NEB Q5 for the same plasmid for PCR, same annealing temperature. Only the repliQa HiFi toughMix gave me the correct size products. It is very fast and works much better than NEB Q5 for difficult plasmids in PCR."

Dr. Kara C. | UT Southwestern Medical Center
repliQa HiFi ToughMix

"Worked great amplifying two gene target from plasmid DNA. It was the first time I have performed a two step reaction and it worked great. It was awesome running everything in 23 minutes too."

Dr. Brandon L. | University of Nebraska
repliQa HiFi ToughMix

"Worked great amplifying two gene target from plasmid DNA. It was the first time I have performed a two step reaction and it worked great. It was awesome running everything in 23 minutes too."

Dr. Brandon L. | University of Nebraska

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