PCR Reagents & Kits

<h2 dir="ltr">What Is Taq DNA Polymerase?</h2>
 Taq DNA polymerase, isolated from the thermophilic bacterium Thermus aquaticus, was the enzyme that made modern PCR possible. Its thermostability &mdash; retaining activity after repeated denaturation cycles at 94-95&deg;C &mdash; eliminated the need to add fresh enzyme after each cycle, a limitation of earlier PCR approaches using non-thermostable polymerases.
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<h2 dir="ltr">What you will find:</h2>
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High-Purity Enzymes: Versatile standalone polymerases, including Azura&trade; and Accuris series, available in flexible formats from 500 to 6000 units to suit both small-scale projects and high-volume industrial applications.
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Optimized Performance: Specialized formulations designed for superior processivity and flexible reaction tuning, allowing for high-yield synthesis across diverse and challenging DNA templates.
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<h2 dir="ltr"> How to Choose Taq DNA Polymerase</h2>
 Standard vs. Hot-Start Standard Taq is active immediately at room temperature, suitable for most routine genotyping and screening applications. Hot-start Taq formulations remain reversibly inactive until a high-temperature activation step, improving specificity for multiplex or low-abundance template reactions. Buffer System Compatibility Optimised 10x PCR buffers are formulated to complement the enzyme's activity profile &mdash; using mismatched buffer systems from other suppliers can affect yield and specificity, so matched buffer-enzyme pairs are recommended. MgCl2 Titration Needs MgCl2 concentration is one of the most influential variables in PCR specificity and yield. Separate MgCl2 solutions allow titration for templates or primer sets requiring optimisation beyond standard buffer concentrations. Concentration and Unit Format Enzyme is typically supplied in units (U) reflecting incorporation activity per unit time &mdash; confirm the unit concentration matches your typical reaction scale to avoid excessive dilution or waste. Application Scope Genotyping, colony screening after transformation, diagnostic band confirmation, and general routine amplification are the primary applications for standard and hot-start Taq DNA polymerase. 
<h2 dir="ltr"> Specifications Context</h2>
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Taq DNA polymerase&rsquo;s thermostability &mdash; the ability to withstand repeated 94&ndash;95 &deg;C denaturation cycles without loss of activity &mdash; enabled practical PCR workflows based on a single thermostable enzyme. The enzyme lacks 3&prime;&rarr;5&prime; proofreading exonuclease activity, resulting in a higher error rate than high-fidelity polymerases (e.g., Phusion, Q5, KOD, Pfu-based systems), making it suitable for genotyping and screening but less appropriate for cloning- or sequencing-grade amplification.
Standard storage is at &minus;20 &deg;C, and many formulations are generally tolerant to multiple freeze&ndash;thaw cycles depending on buffer composition; lot-specific CoAs are available on request. In laboratories using both standard and hot-start Taq formulations, clear labelling and separation of storage conditions help prevent cross-use, particularly in assays where hot-start specificity is critical. A side-by-side validation on a known template when adopting a new Taq formulation can help establish expected amplification efficiency and specificity before routine use. Product availability reflects MBP&rsquo;s catalogue as of mid-2026. 
Refine your amplification results&mdash;<a href="https://mbpinc.net/contact-us" title="contact the MBP team" style="color: #236fa1;">contact the MBP team</a> today for a quote on our professional Taq Polymerase solutions.

Taq DNA Polymerase

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PCR Product Guide

G009 Taq DNA Polymerase by Applied Biological Materials is a thermostable Taq enzyme for cost-effective routine PCR, supplied with 5X Taq Buffer (1.5 mM Mg2+). Produces 3&prime;-dA-tailed, TA-cloning-compatible amplicons. 200 rxn (200 µl); ISO 13485:2016 MDSAP certified; store at &minus;20&deg;C.

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<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.
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<h2 dir="ltr">What you will find:</h2>
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<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>
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<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. 
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<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.

Hot Start Taq DNA Polymerase

Ultra-Pure BlasTaq™ 2X PCR MasterMix

G885 Ultra-Pure BlasTaq&trade; 2X PCR MasterMix by Applied Biological Materials is an ultra-pure, human DNA-free 2X fast PCR master mix with BlasTaq&trade; DNA Polymerase (6 kb/min; 40&ndash;70% faster than Taq) and integrated gel loading dye, for sensitive PCR applications requiring contamination-free reagents in forensic, clinical, metagenomic, and food safety workflows.