Accuris Instruments

<h2>What Are Direct PCR Master Mixes?</h2>
&nbsp;
Direct PCR master mixes are specially formulated 2x PCR reagents designed to amplify nucleic acid targets directly from crude biological samples such as blood, buccal swabs, tissue punches, cultured cells, or other minimally processed material without a separate DNA or RNA extraction step. This is achieved through inhibitor-tolerant polymerase formulations, often combined with proprietary buffer additives that counteract the effects of hemoglobin, melanin, polysaccharides, and other common PCR inhibitors present in crude lysates.&nbsp;Choose a direct PCR master mix for high-throughput genotyping or rapid screening applications where eliminating the extraction step provides meaningful time and cost savings, provided the application tolerates the typically modest reduction in amplification efficiency compared to extracted-template PCR.
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<h2>What You Will Find</h2>
&nbsp;
<ul>
<li>Direct PCR &amp; Fast Extraction Kits: Streamlined solutions such as the Flash-Extract&trade; PCR Kit and Accuris Fast Extraction PCR Kit that enable rapid PCR workflows from minimally processed samples, reducing preparation time and simplifying genotyping applications.</li>
<li>Genotyping Kits: Specialized products including the Azura&trade; Mouse Genotyping Kit and Accuris 1 Hour Mammalian Genotyping Kit, designed for reliable genotyping workflows using tissue, tail, ear, or other biological samples.</li>
</ul>
&nbsp;
<h2>How to Choose a Direct PCR Master Mix</h2>
&nbsp;
Sample Type Compatibility
Direct PCR formulations vary in the crude sample types they are validated for. Blood, tissue, cells, and swabs each present different inhibitor profiles, so confirm the master mix is validated for your specific sample type before adopting it for a new workflow.
Inhibitor Tolerance Mechanism
Inhibitor tolerance is typically achieved through a combination of enzyme engineering and buffer additives that bind or neutralize inhibitory compounds. The specific combination affects which inhibitor types, such as heme from blood or melanin from pigmented tissue, the mix is best suited to handle.
Lysis Step Requirements
Some direct PCR master mixes require a brief lysis step, such as a short heat or detergent treatment, before amplification, while others are formulated for direct addition of the crude sample to the PCR reaction. Confirm the workflow complexity matches your throughput needs.
Amplicon Size and Application
Direct PCR is well established for short-to-moderate amplicon genotyping and screening applications. Very long amplicons or applications requiring maximum yield from limited template may still benefit from a brief extraction step even when a direct-compatible mix is available.
Comparison to Extraction-Based PCR
Direct PCR master mixes generally show good performance for routine genotyping but may exhibit somewhat reduced sensitivity or yield compared to PCR from purified template. For applications where extraction-free convenience outweighs a modest performance trade-off, direct PCR offers substantial time savings, particularly at high sample throughput.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Direct PCR master mixes enable PCR directly from crude samples through heat-stable polymerases tolerant of inhibitor compounds and lysis buffer components, combined with optimized buffer systems designed to neutralize hemoglobin, melanin, polysaccharides, and other inhibitors commonly found in blood, tissue, and plant material. The time savings from eliminating extraction are most significant in high-throughput genotyping pipelines, where extraction across hundreds of samples can represent a substantial fraction of total workflow time. As with any inhibitor-tolerant formulation, performance can vary by specific sample matrix. Validating a direct PCR master mix against a small panel of representative samples before deploying it across a full study is considered good practice. Direct PCR master mixes are typically stored at -20&deg;C. Lot-specific Certificates of Analysis (CoAs) are available on request.&nbsp;
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Streamline your amplification workflow&mdash;<a href="https://mbpinc.net/contact-us">contact the MBP team</a> today for a quote on our professional Direct PCR solutions.

Direct PCR Master Mixes

Accuris 1 Hour Mammalian Genotyping Kit

Accuris 1 Hour Mammalian Genotyping Kit (PR1300-MG) by MBP provides PCR-ready DNA lysates from mammalian tissue in two simple steps &mdash; no columns or centrifugation needed. Ideal for high-throughput transgenic colony genotyping. Available in sample, 80-, and 400-reaction packs (PR1300-MG-S / -80 / -400).

Manufacturer

Accuris 1 Hour Mammalian Genotyping Kit, Sample, 8 reactions

Accuris 1 Hour Mammalian Genotyping Kit, 80 Reactions

Accuris 1 Hour Mammalian Genotyping Kit, 400 Reactions

dNTP Set

<h2 dir="ltr">What is a dNTP Set?</h2>
 A dNTP Set is a complete set of individual, highly pure deoxynucleotide triphosphates - dATP, dCTP, dGTP, and dTTP - each supplied as a separate 100 mM solution in water. Each nucleotide can be diluted and mixed with any of the other three to the desired final concentration or ratio, giving researchers full control over custom PCR, qPCR, or labelling mix preparation. Choose a dNTP Set when you need to prepare custom-concentration mixes, run multiple applications with different nucleotide requirements, or want individual stocks for non-equimolar formulations.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li style="color: #000000;" data-section-id="rmv9gj" data-start="173" data-end="310">Pre-mixed deoxynucleotide triphosphate (dNTP) sets for PCR and DNA synthesis applications, including PureStrand&trade; dNTP Set (Azura)</li>
<li style="color: #000000;" data-section-id="1u2l5t9" data-start="311" data-end="437">High-concentration nucleotide formulations such as Accuris 100mM dNTP Set for flexible reaction setup and optimization</li>
<li style="color: #000000;" data-section-id="kkyf1s" data-start="438" data-end="533">Standard dNTP set formats suitable for routine PCR workflows, including dNTP Set (G050)</li>
<li style="color: #000000;" data-section-id="1j5qt5c" data-start="534" data-end="653">Nucleotide triphosphate formulations for enzymatic and molecular biology applications, including NTP Set (G946)</li>
<li style="color: #000000;" data-section-id="1nhlqes" data-start="654" data-end="773">Ready-to-use balanced nucleotide sets supporting DNA polymerase activity in PCR and related amplification reactions</li>
</ul>
&nbsp;
<h2 dir="ltr">How to Choose a dNTP Set</h2>
 Custom Mix Preparation A dNTP Set's primary advantage is flexibility - preparing a working mix at any desired total concentration and ratio, including non-standard formulations for specific applications such as nucleotide analog substitution (e.g., dUTP in place of dTTP for anti-carryover-contamination strategies). Multiple Application Support Labs running PCR, qPCR, cDNA synthesis, and DNA labelling from the same stock benefit from a single dNTP Set, since each application may call for slightly different concentrations or ratios prepared from the same individual 100 mM tubes. Stock Concentration 100 mM is the standard individual stock concentration for dNTP Sets, providing substantial dilution headroom - a 100 mM stock can be diluted 1000-fold to reach a 0.1 mM working concentration, or combined at lower dilution ratios for higher-concentration premixes. Equimolar Mixing Discipline When preparing a standard equimolar mix from a dNTP Set, equal volumes of each 100 mM nucleotide are combined with water to the desired total concentration - for example, equal-volume mixing of all four 100 mM stocks yields a 25 mM-each premix at 100 mM total. Purity and Lot Testing PCR-grade dNTP Sets are typically tested at greater than 99% purity by HPLC, with concentration verified by optical density spectrometry and absence of human/E. coli DNA confirmed by qPCR - important documentation for labs requiring lot-specific quality records. 
<h2 dir="ltr"> Specifications Context</h2>
 To prepare a standard equimolar working mix from a dNTP Set, combining equal volumes of each 100 mM individual stock yields a mix at 25 mM of each nucleotide (100 mM total); this can be further diluted to common working stocks such as 10 mM each (a 50x stock relative to the 0.2 mM PCR final concentration) or 2.5 mM each (a 10x stock). The performance of each lot is typically functionally tested in a PCR requiring all four nucleotides, with concentration verified by optical density spectrometry and purity confirmed by HPLC. dNTP Sets are stable at &minus;20 &deg;C with documented multiple freeze-thaw tolerance; thawing and mixing each individual tube thoroughly before use is recommended. 
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<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today and get reliable dNTP sets for your next successful experiment.

Accuris qMAX Green One-Step RT-qPCR Kit, Low Rox, 100 reactions

Accuris qMAX Green One-Step RT-qPCR Kit, Low Rox, 500 reactions

Accuris qMAX Green One-Step RT-qPCR Kit, Low Rox, 1000 reactions

Accuris qMAX Green One-Step RT-qPCR Kit, High Rox, 100 reactions

Accuris qMAX Green One-Step RT-qPCR Kit, High Rox, 500 reactions

Accuris qMAX Green One-Step RT-qPCR Kit, High Rox, 1000 reactions

Accuris qMAX™ Green One-Step RT-qPCR Kit

Accuris qMAX Probe One-Step RT-qPCR Kit, Low Rox, 100 reactions

Accuris qMAX Probe One-Step RT-qPCR Kit, Low Rox, 500 reactions

Accuris qMAX Probe One-Step RT-qPCR Kit, Low Rox, 1000 reactions

Accuris qMAX Probe One-Step RT-qPCR Kit, High Rox, 100 reactions

Accuris qMAX Probe One-Step RT-qPCR Kit, High Rox, 500 reactions

Accuris qMAX Probe One-Step RT-qPCR Kit, High Rox, 1000 reactions

Accuris qMAX™ Probe One-Step RT-qPCR Kit

Accuris qMAX Probe One-Step Multiplex RT-qPCR Kit, No Rox, 100 reactions

Accuris qMAX Probe One-Step Multiplex RT-qPCR Kit, No Rox, 500 reactions

Accuris qMAX Probe One-Step Multiplex RT-qPCR Kit, No Rox, 1000 reactions

Accuris qMAX™ Probe One-Step Multiplex RT-qPCR Kit

Accuris SYBR Green One-Step RT-qPCR Kit, No ROX, 2500 reactions (1x25ml, 2x1.25ml)

Accuris SYBR Green One-Step RT-qPCR Kit, No ROX, 5000 reactions (1x50ml, 4x1.25ml)

Accuris Probe One-Step RT-qPCR Kit, No ROX, 2500 reactions (1x25ml, 2x1.25ml)

Accuris Probe One-Step RT-qPCR Kit, No ROX, 5000 reactions (1x50ml, 4x1.25ml)

Accuris Probe Multiplex One-Step RT-qPCR Kit, No ROX, 2500 reactions (1x25ml, 2x1.25ml)

Accuris Probe Multiplex One-Step RT-qPCR Kit, No ROX, 5000 reactions (1x50ml, 4x1.25ml)

Accuris Bulk Packaging for High Throughput

40mM dNTP Mix, ready-to-use, 10mM/20μmol each, 0.5ml

40mM dNTP Mix, ready-to-use, 10mM/80μmol each, 2ml

dNTP Mix

100mM dNTP Set, dATP, dCTP, dGTP, dTTP, 250μl/25μmol each

100mM dNTP Set, dATP, dCTP, dGTP, dTTP, 1ml/100μmol each

Accuris 100mM dNTP Set

Accuris 100mM dNTP Set (PR3101-S-1) by MBP provides four individual 100 mM solutions of dATP, dCTP, dGTP, and dTTP, HPLC-purified to &gt;99% purity with 24-month shelf life. No nuclease/protease/nickase activity. Available in 1ml (PR3101-S-1) or 4ml per nucleotide (PR3101-S-4) formats. Store at &minus;20&deg;C.

100mM dNTP Set, dATP, dGTP, dTTP, dCTP, 250µl /25µmol of each

100mM dNTP Set, dATP, dGTP, dTTP, dCTP, 1ml/100µmol of each

dNTPs Mix

<h2 dir="ltr"> What is a dNTP Mix?</h2>
 A dNTP Mix is a premixed solution containing all four deoxynucleotide triphosphates - dATP, dCTP, dGTP, and dTTP - combined in equimolar amounts at a standard working concentration, commonly 10 mM each (40 mM total) when prepared from 100 mM individual stocks. The premix is ready for direct addition to a PCR, qPCR, or cDNA synthesis reaction without further dilution or balancing.&nbsp; Choose a premixed dNTP Mix for routine PCR setup where convenience and lot-to-lot consistency outweigh the need for custom nucleotide ratios.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li>High-purity nucleotide mixes for PCR and DNA synthesis applications, including PureStrand&trade; Ultra-Pure dNTP Mix (Azura)</li>
<li>Standard 10 mM each dNTP formulations suitable for routine PCR workflows, including dNTP Mix (10 mM each) formats</li>
<li>Higher-concentration nucleotide solutions, such as Accuris 40 mM dNTP Mix for optimized reaction setup flexibility</li>
<li>Ready-to-use balanced dNTP blends supporting DNA polymerase activity in PCR and related enzymatic amplification reactions</li>
<li>Nucleotide triphosphate formulations, including NTP Mix (G945), for broader enzymatic and molecular biology applications</li>
</ul>
&nbsp;
<h2>How to Choose a dNTP Mix</h2>
 Concentration Format Common premix formats include 10 mM each (40 mM total, a 50x working stock relative to the 0.2 mM final concentration) and 2.5 mM each (10 mM total, a 10x working stock). Select the format that aligns with your typical reaction volume and pipetting precision - more dilute stocks reduce pipetting error for small-volume reactions. Equimolar Accuracy Because all four nucleotides are pre-combined at equal concentrations, a premixed dNTP Mix removes the risk of manual equimolar-mixing error that can occur when combining four separate 100 mM stocks - unbalanced ratios increase misincorporation frequency during polymerisation. Throughput Considerations For high-throughput PCR setups across multi-well plates, a premixed dNTP Mix reduces the number of individual pipetting steps per reaction compared to adding four separate dNTP stocks, improving both speed and reproducibility. Compatibility with Master Mixes Many 2x PCR master mixes already include dNTPs at optimised concentrations - a separate dNTP Mix is primarily needed for labs assembling reactions from individual components (enzyme, buffer, dNTPs, primers) rather than using a pre-formulated master mix. Application Range A standard equimolar dNTP Mix supports PCR, qPCR, and cDNA synthesis (as substrate for reverse transcriptase). Confirm the concentration and purity grade align with the specific requirements of high-fidelity or long-range PCR, if applicable. 
<h2 dir="ltr"> Specifications Context</h2>
 To prepare a standard PCR reaction at the recommended 0.2 mM final concentration of each dNTP using a 10 mM-each premix, 1 &micro;L of the premix is added per 50 &micro;L reaction. Equal nucleotide concentrations in the premix are essential because unbalanced dNTP ratios increase the frequency of misincorporation during DNA synthesis - a factory-balanced premix removes this variable. dNTP Mix is typically supplied in water at pH 7.5, stable at &minus;20 &deg;C with documented multiple freeze-thaw tolerance; thawing and mixing thoroughly before use is recommended, especially for higher-concentration formats. 
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<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today and get high-purity dNTP mixes tailored for your laboratory workflows.

Accuris 40mM dNTP Mix

Accuris 40mM dNTP Mix (PR3040-M-1) by MBP is a ready-to-use equimolar dNTP mix (10 mM each of dATP, dCTP, dGTP, dTTP; 40 mM total). HPLC-purified, &gt;99% pure, 24-month shelf life. No dilution required. Available as PR3040-M-1 (1 ml) or PR3040-M-4 (4 ml). Store at &minus;20&deg;C.

40mM dNTP Mix (10mM/20µmol each), 0.5ml

40mM dNTP Mix (10mM/80µm each), 2ml

Accuris Fast Extraction PCR Kit Instruction Insert

Accuris Fast Extraction PCR Kit & Lysis Solution

Accuris Fast Extraction PCR Kit

Accuris Fast Extraction PCR Kit (PR1400-FE) by MBP enables rapid DNA extraction and PCR amplification from tissue, plant, saliva, and bacteria in a streamlined workflow. Available in standard FE (PR1400-FE-S / -100 / -400) and separate-lysis FLS formats (PR1400-FLS-S / -100 / -400) — 6 variant SKUs total. Store at &minus;20&deg;C.

Accuris Fast Extraction PCR Kit Sample 16 reactions

Accuris Fast Extraction PCR Kit 100 reactions

Accuris Fast Extraction PCR Kit 400 reactions

Accuris Fast Extraction Lysis Solution 16 reactions

Accuris Fast Extraction Lysis Solution 100 reactions

Accuris Fast Extraction Lysis Solution 400 reactions

High-Fidelity DNA Polymerase

<h2>What Are High-Fidelity DNA Polymerases?</h2>
&nbsp;
The development of high-fidelity thermostable DNA polymerases transformed PCR from a tool for detection and amplification into a precise DNA engineering platform. By combining thermostability with 3' to 5' proofreading exonuclease activity, modern high-fidelity enzymes detect and remove misincorporated bases immediately after insertion during DNA synthesis. Polymerase fidelity can significantly affect downstream results, so choosing an enzyme that meets your accuracy and performance requirements is essential.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>High-fidelity DNA amplification with proofreading activity using Azura TruFi&trade; II DNA Polymerase.</li>
<li>Proofreading polymerase formulations with matched reaction buffers, including ExtremeTaq&trade; DNA Polymerase with 5x Reaction Buffer.</li>
<li>Accurate PCR amplification with Accuris High Fidelity DNA Polymerase for cloning, sequencing, and mutagenesis workflows.</li>
<li>High-fidelity enzyme systems featuring proofreading activity, including MegaFi Pro Fidelity DNA Polymerase.</li>
</ul>
&nbsp;
<h2>How to Choose a High-Fidelity DNA Polymerase</h2>
&nbsp;
Enzyme Family Selection
High-fidelity polymerases differ in processivity, extension speed, fidelity, and template compatibility. Selection should consider amplicon length, GC content, template complexity, and downstream application requirements.
Format: Enzyme vs. Master Mix
Individual high-fidelity enzymes with optimized HF buffers suit custom reaction optimization, particularly for difficult templates requiring buffer additive titration. In contrast, 2x master mixes streamline routine high-fidelity amplification for cloning and mutagenesis workflows.
Error Rate Requirements
For applications where amplicons will be cloned and sequence-verified downstream, the approximately 50- to 100-fold lower error rate of high-fidelity enzymes compared with standard Taq polymerase substantially reduces the frequency of sequence-confirmed clones carrying PCR-introduced mutations.
Extension Speed and Cycling Time
High-fidelity polymerases often extend faster than standard Taq per kilobase, which can shorten overall cycling time for long amplicons. However, optimal cycling parameters are enzyme-specific and should follow the manufacturer's recommendations.
Cloning Method Compatibility
Some high-fidelity polymerases generate blunt-ended PCR products suited to Gibson Assembly or blunt-end cloning strategies, while others may require additional steps for TA cloning. Confirm compatibility with your intended downstream cloning method before selection.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
The development of high-fidelity thermostable DNA polymerases&mdash;combining thermostability with 3' to 5' proofreading exonuclease activity&mdash;transformed PCR from a detection and amplification tool into a precise DNA engineering platform, enabling reliable cloning, site-directed mutagenesis, and sequencing-grade amplification. The proofreading mechanism corrects misincorporated bases immediately after insertion, reducing error rates to approximately 10&minus;6 per nucleotide. Selection between high-fidelity polymerases often depends on template characteristics such as GC content, amplicon length, secondary structure, and downstream cloning requirements. High-fidelity enzymes are typically stored at &minus;20 &deg;C with matched HF buffer systems, and lot-specific Certificates of Analysis (CoAs) are available upon request. For sequencing-bound amplicons, confirm that the selected polymerase's documented error rate meets the level of sequence accuracy required, as even a 50- to 100-fold improvement over standard Taq may not be sufficient for applications demanding extremely low mutation rates across very long amplicons. Product availability reflects MBP's catalogue as of mid-2026.
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team at MBP </a>today to find high-fidelity DNA polymerase solutions for streamlining your laboratory workflows.

Accuris High Fidelity, Hot Start Master Mix

Accuris High Fidelity DNA Polymerase & Master Mix

Accuris High Fidelity DNA Polymerase

Accuris High Fidelity DNA Polymerase (PR1000-HF) by MBP is a proofreading PCR polymerase delivering up to 100&times; higher fidelity than Taq. Crude DNA compatible. Generates blunt-end or A-overhang products. Optimized buffers with PCR enhancers included. Sample, 200-, and 1,000-unit packs. Store at &minus;20&deg;C.

Accuris High Fidelity DNA Polymerase, sample, 20 units

Accuris High Fidelity DNA Polymerase, 200 units

Accuris High Fidelity DNA Polymerase, 1000 units

High-Fidelity Master Mix

<h2 dir="ltr">What Is a High-Fidelity PCR Master Mix?</h2>
 A high-fidelity PCR master mix is a 2x concentrated, pre-formulated solution containing a proofreading DNA polymerase (Phusion, Q5, KOD, or Pfu-equivalent), dNTPs, MgCl2, and reaction buffer &mdash; requiring only the addition of template and primers to set up a reaction. The proofreading polymerase's 3' to 5' exonuclease activity corrects misincorporated nucleotides during synthesis, reducing the error rate roughly 50-100-fold compared to standard Taq master mixes. Choose a high-fidelity master mix whenever the amplicon will be cloned, mutagenised, or sequenced &mdash; not for routine genotyping, where standard Taq is sufficient and lower cost.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li data-section-id="uyjmeg" data-start="418" data-end="539">Streamlined post-amplification analysis with high-fidelity 2X red mix formulations with direct gel-loading capability</li>
<li data-section-id="1rh0fvx" data-start="540" data-end="630">Pre-optimized high-fidelity 2X PCR master mixes containing proofreading DNA polymerase</li>
<li data-section-id="6drhog" data-start="631" data-end="735">Reduced non-specific amplification and primer-dimer formation compared to standard Taq-based systems</li>
<li data-section-id="1pa7u4r" data-start="736" data-end="826">High-fidelity amplification suitable for cloning workflows requiring sequence accuracy</li>
<li data-section-id="1n3ow6j" data-start="827" data-end="925">2X master mix formats designed for reproducible amplification across a range of template types</li>
</ul>
<h2 dir="ltr"> How to Choose a High-Fidelity Master Mix</h2>
 Downstream Application Cloning into expression vectors, site-directed mutagenesis, and sequencing-bound amplicons all benefit from the reduced error rate of a high-fidelity master mix. Routine genotyping or colony screening does not require this level of accuracy and is typically served by standard Taq master mixes at a lower cost. Template Difficulty (GC Content, Length) Some high-fidelity master mix formulations are specifically optimised for GC-rich templates or long amplicons (&gt;5 kb), where standard high-fidelity formulations may show reduced yield. Check product-specific template compatibility notes before ordering for difficult targets. Extension Time and Cycling Protocol High-fidelity polymerases often have different optimal extension times per kilobase compared to standard Taq &mdash; some extend faster, shortening overall cycling time for long amplicons. Follow the manufacturer's recommended cycling parameters rather than reusing a standard Taq protocol. Cloning Method Compatibility Some high-fidelity master mixes produce blunt-ended products suited to Gibson Assembly or blunt cloning strategies; others may need additional A-tailing for TA cloning. Confirm compatibility with your intended downstream cloning method before selecting a product. Format Convenience vs. Component Flexibility The 2x master mix format minimises pipetting steps and improves reproducibility for routine high-fidelity workflows. Researchers needing to titrate individual components (e.g., additional MgCl2 for a specific template) may prefer the individual high-fidelity enzyme plus separate buffer instead. 
<h2 dir="ltr"> Specifications Context</h2>
 A 2x high-fidelity master mix is set up identically to a standard 2x Taq master mix &mdash; combined with template and primers at the manufacturer-specified ratio to reach 1x working concentration &mdash; but the included proofreading polymerase detects and removes misincorporated bases immediately after insertion, reducing the per-cycle error rate to approximately 10⁻⁶ per nucleotide. This level of accuracy matters specifically because any error introduced during amplification is propagated into the final cloned construct or sequencing read. High-fidelity master mixes are typically stored at &minus;20 &deg;C; lot-specific CoAs documenting activity and quality control are available on request. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today and get pre-optimized High-Fidelity Master Mix solutions for your lab.

Accuris High Fidelity Hot Start Master Mix

Accuris High Fidelity Hot Start Master Mix (PR1001-HFHS) by MBP is a ready-to-use 2X proofreading PCR mix with Hot Start technology delivering up to 100&times; the fidelity of standard Taq. Ideal for cloning, mutagenesis, and sequencing. Available in sample, 200-reaction, and 500-reaction packs (PR1001-HFHS-S / -200 / -500). Store at &minus;20&deg;C.

Accuris High Fidelity Hot Start Master Mix, sample, 5 rxns

Accuris High Fidelity Hot Start Master Mix, 200 rxns

Accuris High Fidelity Hot Start Master Mix, 500 rxns

Accuris High Fidelity PCR Master Mix

Accuris High Fidelity PCR Master Mix (PR1001-HF) by MBP delivers up to 100&times; higher fidelity than Taq in a ready-to-use 2X format. Proofreading activity, crude DNA compatible, blunt or A-overhang products. Optimized buffers with PCR enhancers. Sample, 200-, and 500-reaction packs. Store at &minus;20&deg;C.

Accuris High Fidelity PCR Master Mix, sample, 5 rxns

Accuris High Fidelity Master Mix, 200 rxns

Accuris High Fidelity Master Mix, 500 rxns

Hot Start Taq Master Mix

<h2 dir="ltr">What Is a Hot Start Taq Master Mix?</h2>
 Hot start 2x master mixes combine the convenience of the ready-to-use master mix format with the improved specificity of hot-start technology. These products are the standard reagent format for high-throughput genotyping, clinical diagnostic PCR, and multiplex reactions where non-specific amplification would compromise results. The right hot-start master mix supports cleaner amplification and streamlined setup. Select a formulation designed for reliable PCR performance.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li>Hot-start formulations from Azura, Accuris, BlasTaq, and Zymo Research for reduced non-specific amplification and primer-dimer formation.</li>
<li>Antibody-mediated hot-start activation in selected products, including ZymoTaq PreMix and Accuris Hot Start Taq Master Mix.</li>
<li>2X master mix and premix formats containing hot-start Taq polymerase, MgCl₂, dNTPs, and optimized PCR buffers.</li>
<li>Red-dye formulations for direct gel loading, including Azura 2X HS Taq Red Mix and Accuris Hot Start Taq Master Mix Red Dye.</li>
<li>Buffer systems optimized for endpoint PCR, multiplex PCR, and challenging template amplification.</li>
</ul>
&nbsp;
<h2 dir="ltr">How to Choose a Hot Start Taq Master Mix</h2>
 Activation Mechanism Format Antibody-mediated hot-start master mixes activate during the standard initial denaturation step; chemically modified formats may require a longer or dedicated activation incubation &mdash; confirm cycling protocol compatibility before adopting a new product. Component Pre-Optimisation A 2x hot-start Taq master mix is a pre-formulated, double-concentrated solution containing hot-start Taq DNA polymerase, dNTPs, MgCl2, and PCR buffer &mdash; the hot-start polymerase remains inactive at room temperature until the activation step is reached during cycling. Multiplex Compatibility For multiplex PCR (multiple primer pairs in a single reaction), hot-start master mixes substantially reduce primer-primer cross-reactivity compared to standard Taq master mixes, improving reliable detection of all intended targets. Diagnostic and Clinical Applications High-specificity master mixes are the standard reagent format for clinical diagnostic PCR, where false-positive bands from non-specific amplification could affect result interpretation. Throughput and Format 2x hot-start master mixes are designed for high-throughput genotyping pipelines, requiring only template and primer addition &mdash; minimising pipetting steps across large sample sets. 
<h2 dir="ltr"> Specifications Context</h2>
 Hot-start 2x master mixes are set up like standard master mixes&mdash;combined with template and primers at the manufacturer-specified ratio to achieve a 1x working concentration&mdash;but the polymerase remains inactive until the activation step, typically during initial denaturation for antibody-mediated formats. This combination of convenience and specificity has made hot-start master mixes a widely used choice for high-throughput genotyping, multiplex PCR, and other applications requiring reliable target-specific amplification. Product availability reflects MBP's catalogue as of mid-2026. Labs validating a new hot-start master mix should evaluate performance using known positive and negative samples and document results by lot number to support quality assurance, audits, and troubleshooting. 
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP and get premium-quality Hot Start Taq Master Mix formulations for your lab today.

Accuris Hot Start Taq DNA Polymerase & Master Mix

Accuris Hot Start Taq Master Mix Red Dye

Accuris Hot Start Taq Master Mix Red Dye (PR1001-HSR) by MBP combines antibody-mediated hot start PCR with a red loading dye for direct gel loading — no additional loading buffer needed. Ideal for low copy, multiplex, and GC-rich PCR with streamlined gel analysis. Sample, 200-, and 1,000-reaction packs. Store at &minus;20&deg;C.

Accuris Hot Start Taq Master Mix Red Dye, 2X conc., sample, 5 reactions

Accuris Hot Start Taq Master Mix Red Dye, 2X conc., 200 reactions

Accuris Hot Start Taq Master Mix Red Dye, 2X conc., 1000 reactions

Accuris Hot Start Taq Mastermix

Accuris Hot Start Taq Mastermix (PR1001-HS) by MBP is a ready-to-use 2X PCR master mix with antibody-mediated hot start, allowing room-temperature reaction setup with no non-specific amplification. Exceptional sensitivity for low copy, multiplex, and GC-rich PCR. Sample, 200-, and 1,000-reaction packs. Store at &minus;20&deg;C.

Accuris Hot Start Taq Mastermix, sample, 5 reactions

Accuris Hot Start Taq Master Mix, 2X conc., 200 reactions

Accuris Hot Start Taq Master Mix, 2X conc., 1000 reactions

Hot Start Taq DNA Polymerase

<h2 dir="ltr">What Is Hot Start Taq DNA Polymerase?</h2>
 Hot-start Taq DNA polymerase is the enzyme of choice for PCR applications where non-specific amplification or primer dimer formation has been problematic with standard Taq. By keeping the polymerase inactive until a high-temperature activation step, hot-start formulations prevent the room-temperature primer extension that drives non-specific products in standard Taq reactions. Choose a polymerase suited to your assay requirements.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li data-section-id="1hsv5i3" data-start="233" data-end="391">Hot-start Taq DNA polymerases are designed to support multiplex PCR by reducing non-specific amplification and primer-primer interactions during reaction setup.</li>
<li data-section-id="bhgh5r" data-start="392" data-end="516">Formulations suitable for high-throughput PCR workflows requiring a stable room-temperature setup before thermal activation.</li>
<li data-section-id="1h2z623" data-start="517" data-end="640">Improved specificity for amplification of low-abundance targets compared with conventional non-hot-start Taq polymerases.</li>
<li data-section-id="1nifv8r" data-start="641" data-end="743">Cleaner amplicon generation for downstream applications such as cloning, sequencing, and genotyping.</li>
<li data-section-id="bof93a" data-start="744" data-end="892">Enzyme and buffer systems formulated to support amplification of challenging templates, including GC-rich regions and complex genomic DNA samples.</li>
</ul>
<h2 dir="ltr"> How to Choose Hot Start Taq DNA Polymerase</h2>
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Inactivation Mechanism Antibody-mediated formulations use a heat-sensitive antibody that reversibly binds and inhibits the enzyme until denatured during the initial high-temperature step. Chemically modified formulations use covalent modifications to active-site residues that are reversed by heat during cycling. Standard vs. Hot-Start Comparison Standard Taq DNA polymerase is a formulation of recombinant Taq that remains active at ambient temperatures, permitting non-specific primer extension during reaction setup &mdash; hot-start formulations are reversibly inactivated at ambient temperature specifically to prevent this. Buffer Compatibility As with standard Taq, optimised 10x PCR buffer formulations are designed to complement the specific hot-start enzyme's activation and activity profile. Activation Time Considerations Confirm whether your chosen hot-start formulation activates within a standard initial denaturation step or requires an extended/dedicated activation incubation, as this affects total cycling protocol time. Application Fit Hot-start Taq is recommended wherever specificity is a concern: multiplex PCR, low-template-abundance amplification, diagnostic PCR, and any workflow where primer dimer formation has been observed with standard Taq. 
<h2 dir="ltr"> Specifications Context</h2>
 Hot-start Taq DNA polymerase is a recombinant Taq formulation that remains inactive during reaction setup, preventing the non-specific primer extension that standard Taq can permit before thermal cycling begins. This improved specificity is particularly valuable for multiplex PCR, low-abundance templates, and applications where non-specific products could affect result interpretation. Hot-start enzymes are typically stored at &minus;20 &deg;C and commonly supplied with matched PCR buffer. Because antibody-mediated and chemically modified formats can require different activation conditions, initial denaturation parameters should be verified when introducing a new enzyme. Product availability reflects MBP's catalogue as of mid-2026. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today to request a quote and identify the most suitable hot start Taq DNA polymerase for your workflow.

Accuris Hot Start Taq Polymerase

Accuris Hot Start Taq Polymerase (PR1000-HS) by MBP is an antibody-mediated Hot Start enzyme for room-temperature reaction setup with high specificity. Ideal for multiplex PCR, GC-rich DNA, and low copy number targets. Available in sample, 500-, 1,000-, and 6,000-unit packs (PR1000-HS-S / PR1000-HS-500 / PR1000-HS-1000 / PR1000-HS-6000). Store at &minus;20&deg;C.

Accuris Hot Start Taq, sample, 50 units

Accuris Hot Start Taq, 500 units

Accuris Hot Start Taq, 1000 units

Accuris Hot Start Taq, 6000 units

One-Step RT-PCR Kits

<h2 dir="ltr">What Are One-Step RT-PCR Kits?</h2>
 A one-step RT-PCR kit combines reverse transcription and PCR amplification in a single reaction tube and buffer, using gene-specific primers throughout. The kit's enzyme mix typically pairs a reverse transcriptase -- commonly an M-MuLV-derived enzyme such as ProtoScript II or PrimeScript RT -- with a hot-start Taq DNA polymerase, sometimes including a proofreading component for higher-yield amplification.&nbsp; Choose a one-step kit for routine, single- or few-target RNA detection where simplicity and contamination control matter most; choose a two-step approach instead when one RNA sample needs to be tested against many different gene targets.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li style="font-family: arial, helvetica, sans-serif; color: #000000;">One-step RT-PCR kits combining reverse transcription and PCR amplification in a single reaction workflow, including&nbsp;Azura 1-Step Ultra RT-PCR Kit</li>
<li style="color: #000000;">Standard one-step RT-PCR systems for RNA detection and target amplification, including One-Step RT-PCR Kit (RT0201-00) and Accuris One-Step RT-PCR Kit</li>
<li style="color: #000000;">Multiplex and probe-based one-step RT-qPCR-compatible systems, including Accuris qMAX Probe One-Step Multiplex RT-qPCR Kit (No ROX)</li>
<li style="color: #000000;">High-performance one-step RT-PCR chemistry designed for robust RNA amplification, including the MegaFi One-Step RT-PCR Kit</li>
<li style="color: #000000;">Ready-to-use enzyme and buffer systems optimized for streamlined RT-PCR setup and reproducible results across RNA workflows</li>
</ul>
<h2 dir="ltr"> How to Choose a One-Step RT-PCR Kit</h2>
 Enzyme Mix Composition Kits commonly combine an M-MuLV-derived reverse transcriptase with reduced RNase H activity and increased thermostability (e.g., ProtoScript II-type or PrimeScript-type enzymes) with a hot-start Taq polymerase. Some formulations add a proofreading polymerase component for higher-yield, more accurate end-point amplification. Hot-Start Activation Mechanism Most one-step kits use an antibody-modified or aptamer-based hot-start Taq that remains inactive at room temperature, dissociating during an initial high-temperature step (commonly around 94-95 &deg;C for several minutes) to simultaneously activate the polymerase and inactivate the reverse transcriptase before PCR cycling begins. Template Difficulty and Amplicon Length Reverse transcriptases with reduced RNase H activity and enhanced thermostability are better suited to GC-rich or highly structured RNA templates. Some one-step kits are validated for amplifying long transcripts -- up to approximately 9 kb in certain formulations -- relevant for full-length transcript or large-gene RT-PCR. Single-Tube Enzyme Compatibility Combining reverse transcriptase and Taq polymerase in one buffer historically risked mutual inhibition between the two enzyme classes; modern one-step formulations use optimised buffer systems and enzyme ratios specifically designed to avoid this interference, a key differentiator between basic and well-optimised kits. Detection Format End-point one-step RT-PCR kits (gel-based detection) suit qualitative presence/absence screening. For quantitative results, a one-step RT-qPCR kit with a fluorescent dye or probe system is the appropriate choice instead. 
<h2 dir="ltr"> Specifications Context</h2>
 The one-step format integrates the three RT-PCR steps -- reverse transcription, polymerase activation, and amplification -- into a single continuous reaction without opening the tube between steps, directly reducing contamination risk relative to workflows that transfer reaction products between vessels. Historically, combining reverse transcriptase and Taq polymerase in a shared buffer was reported to cause mutual enzyme inhibition and reduced sensitivity; current one-step kits address this through optimised buffer chemistry and enzyme selection, such as RNase H-minus reverse transcriptases paired with hot-start Taq formulations. One-step kits are typically stored at &minus;20 &deg;C to &minus;30 &deg;C and protected from light, where fluorescent dyes are pre-included; lot-specific CoAs are available on request. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today and get high-precision One-Step RT-PCR Kits for your lab.

Accuris One-Step RT-PCR Kit

Accuris One-Step RT-PCR kit

Accuris One-Step RT-PCR Kit (PR1100) by MBP enables cDNA synthesis and PCR amplification in a single tube from as little as 1 pg total RNA. Includes thermostable reverse transcriptase and Hot-Start Taq. Available in sample, 50-reaction, and 100-reaction packs (PR1100-S / PR1100-50 / PR1100-100). Store at &minus;20&deg;C.

Accuris One-Step RT-PCR kit, sample 10 reactions

Accuris One-Step RT-PCR kit, 50 reactions

Accuris One-Step RT-PCR kit, 100 reactions

50bp DNA Ladders

<h2>What is a 50 bp DNA ladder?</h2>
&nbsp;
A 50 bp DNA ladder provides reference bands spaced at 50-base-pair intervals, most commonly covering 50 bp to 1000 bp (or up to 1500 bp in some extended formats), making it suitable for gel electrophoresis experiments where samples are very small DNA fragments that a 100 bp ladder cannot resolve accurately because 100 bp band spacing is too coarse. Common applications include microsatellite and STR genotyping, analysis of small restriction digest products, multiplex or nested PCR amplicons, and other short-fragment applications in the 50&ndash;500 bp range where precise size discrimination is needed.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
ZR 50 bp DNA Marker for precise analysis of smaller DNA fragments&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Azura PureView&trade; 50 bp DNA Ladder for high-resolution gel results in electrophoresis
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Accuris SmartCheck&trade; 50bp DNA Ladder for size determination of PCR products
</li>
</ul>
&nbsp;
<h2>How to choose and use a 50 bp DNA ladder</h2>
&nbsp;
Use a 50 bp ladder when your fragments differ by less than 100 bp and are below 500 bp
The primary reason to use a 50 bp ladder over a 100 bp ladder is when your samples include fragments with size differences of less than 100 bp that need to be resolved, such as microsatellite alleles or closely-sized PCR amplicons from multiplex reactions.
Run small-fragment gels on 2&ndash;4% agarose or polyacrylamide for adequate resolution
High-percentage agarose (2&ndash;4%) or polyacrylamide gels are needed to resolve very small DNA fragments as distinct bands rather than all migrating together near the gel front, since standard 1% agarose does not provide sufficient resolution for fragments below approximately 200 bp.
Use a reference band at a convenient size for quick orientation
Many 50 bp ladders include a brighter reference band at a convenient, easy-to-remember size such as 250 bp or 500 bp, which serves as an anchor for identifying surrounding bands without counting from the well each time.
Confirm the 50 bp ladder's smallest band is detectable with your staining system
Very small DNA fragments, especially below 100 bp, can be difficult to detect or may run off the gel front quickly, and confirming that the ladder's smallest defined bands are visible under your staining and imaging setup helps ensure the full ladder range is usable.
Consider polyacrylamide gels for the highest resolution of fragments below 200 bp
Polyacrylamide gel electrophoresis provides substantially higher resolution than high-percentage agarose for fragments below 100&ndash;200 bp, making it the preferred format when single-base or very fine size discrimination is needed in this range, such as for SSR or STR genotyping.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Standard 50 bp DNA ladders typically cover from 50 bp to 1000 bp with bands at 50 bp intervals, and many include a brighter reference band at 250 bp or 500 bp for quick orientation. As of 2026, the 50 bp ladder remains the standard small-fragment size reference for microsatellite and STR genotyping workflows, whether on standard agarose or capillary electrophoresis platforms where defined size standards are loaded alongside samples.
<a href="https://mbpinc.net/contact-us">Contact the expert team of Molecular Biology Products Inc. (MBP)</a> and get premium-quality 50bp DNA ladders for your next experiment.

Accuris SmartCheck™ 50bp DNA Ladder, 500µl / 100 lanes

Accuris SmartCheck™ 50bp DNA Ladder, 5 x 500µl / 500 lanes

Accuris SmartCheck™ 100bp DNA Ladder, 500µl / 100 lanes

Accuris SmartCheck™ 100bp DNA Ladder, 5 x 500µl / 500 lanes

Accuris SmartCheck™ 1kb DNA Ladder, 500µl / 100 lanes

Accuris SmartCheck™ 1kb DNA Ladder, 5 x 500µl / 500 lanes

Accuris SmartCheck™ DNA Ladders

Accuris SmartCheck™ 100bp DNA Ladder

Accuris SmartCheck™ 100bp DNA Ladder (PR4010) by MBP is a ready-to-use DNA size standard for the 100 bp range with higher intensity reference bands and loading buffer included. Load 5 &mu;l per lane (100 lanes/500 &mu;l). Available as PR4010-100 (100 lanes) or PR4010-500 (500 lanes). Ships ambient; store at &minus;20&deg;C.