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Kura One-Step RT-qPCR Kit

A sensitive, highly specific real-time RT-qPCR kit designed for rapid rapid reverse transcription and cDNA amplification across a wide range of template inputs in a single step.

Robust inhibitor tolerance in complex extracts

High qPCR efficiency across a wide range of RNA input and target types. 

High Sensitivity for Low-Input RNA Samples 

Format:One-Step RT-qPCR kit

PRUEBA copia
SKU Product Name Reactions

 24200

 One-Step RT-qPCR Kit 200 reactions

 200

24300

One-Step RT-qPCR Kit 1000 reactions

1000

Product Overview

Kura One-Step RT-qPCR Kit is designed to streamline detection, quantitative testing and gene expression profiling. By consolidating reverse transcription and amplification into a single step, it delivers consistent quantification precision even in extended cycling and challenging sample matrices.

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Wide template input compatibility

Delivers efficient, sensitive, and linear quantification across highly variable target concentrations with demonstrated performance down to 0.1 pg. 

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High specificity and yield

Utilizes an aptamer-based hot-start mechanism to prevent non-specific amplification, guaranteeing distinct target signal clarity even past 45 cycles.

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Robust inhibitor tolerance

Maintains high enzymatic accuracy and reaction efficiency when processing challenging biological samples or complex extraction residues.

Product format

OPTIMIZED FOR ACCURATE LIBRARY AMPLIFICATION
DeCodi-Fi™ Alpha
2X All-In-One Mix


Provides our DeCodi-Fi™ high-fidelity polymerase in a 2X MasterMix optimized for NGS library amplification. This mix includes all essential PCR components: dNTPs, MgCl₂, and stabilizers, within a proprietary buffer designed to enhance fidelity and coverage. Just add primers and template.

  • Product Type: All-In-One / MasterMix

  • Polymerase: DeCodiFi™ Alpha Hotstart High-Fidelity Polymerase

  • Format: 5 mL

  • Reactions: 400

  • Storage: -20°C

Product format

     OPTIMIZED FOR EFFICIENT RNA DETECTION AND QUANTIFICATION  

 

Kura One-Step RT-qPCR

A flexible kit format with the Reverse Transcriptase enzyme in a 20X Mix and the 2X qPCR MasterMix supplied separately, that contains a HotStart Taq DNA polymerase, dNTPs, and enhancers in an optimized buffer.

Product Type: One-Step RT-qPCR

Enzymes: Reverse Transcriptase and HotStart Taq Polymerase

Format: Kit including 20X RT Enzyme, 2X qPCR Mastermix, 20X Low ROX, and nuclease-free water

Format: 200 reactions and 1000 reactions

Storage: -20°C

Need a Non-Hot-Start version?

DeCodi-Fi™ is also available in a non-hot-start version, made on request and customizable to your workflow needs.

PERFORMANCE DATA

 

High amplification efficiency across a broad input range

High amplification efficiency (100%) and reproducible performance across a broad range of RNA inputs (0.1–1000 pg)

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Figure 1. Evaluation of the One-Step RT-qPCR kit demonstrates amplification efficiency and reproducible performance. RT-qPCR targeting Listeria spp. was performed using the One-Step RT-qPCR Kit with five input RNA concentrations (0.1–1000 pg; 3 technical replicates per input). Reactions were performed according to the recommended protocol (A) Amplification plots show robust amplification across the entire RNA input range with minimal variation between technical replicates, demonstrating high assay reproducibility. (B) Mean Ct values, Ct standard deviations(Ct SD), endpoint fluorescence (RFU), and RFU standard deviations(RFU SD) for each input concentration. Low Ct variability and consistent fluorescence signals across the dilution series indicate high assay precision. (C) Standard curve generated from the mean Ct values demonstrates linearity over five orders of magnitude (R² = 0.999), with a calculated PCR efficiency of 100.8%, supporting accurate quantitative detection across the tested input range.

Detect different viral targets with high sensitivity

The kit provides consistent, high-performance amplification of major aquaculture viruses, guaranteeing precise and reliable detection

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Figure 2. Performance evaluation of the One Step RT-qPCR Kit for key salmonid viral pathogen detection. The One Step RT-qPCR Kit demonstrates amplification of major salmonid viruses, including Infectious Salmon Anemia Virus (ISAV), Piscine Orthoreovirus (PRV), and Infectious Pancreatic Necrosis Virus (IPNV) at medium (IPNV++) and high (IPNV+++) viral loads. (A) Representative amplification curves exhibit the expected sigmoidal profiles for all viral targets, confirming reliable detection across different viral targets. (B) The summary table shows mean Ct values ranging from 15.57 to 31.41 with low Ct standard deviations(Ct SD).

Enhanced sensitivity for earlier detection across different viral loads

Achieve faster, more sensitive results. The One Step RT-qPCR Kit consistently detects viral targets 5.6 to 6.8 cycles earlier than the competition.

Amplification Plot One Step RT-qPCR kit

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KAPA PROBE FAST One-Step qRT-PCR Master Mix

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Figure 4. Performance comparison of the One Step RT-qPCR Kit and KAPA PROBE FAST One-Step for the detection of Piscine orthoreovirus-1 (PRV-1) across different viral loads. Across four relative viral loads (high ++++, medium-high +++, medium-low ++, and low +), the One Step RT-qPCR Kit (top) demonstrated enhanced performance, detecting viral targets 5.6 to 6.8 cycles earlier (Ct) than KAPA PROBE FAST One-Step (bottom) across all concentration ranges, while maintaining strong fluorescence signals (ΔRn, ROX-normalized and baseline-corrected).

 

APPLICATIONS

DNA Amplification & PCR

One-Step RT-qPCR supports RNA-based molecular workflows where reverse transcription and real-time PCR are performed within a single reaction setup.

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qPCR & RT-qPCR

For workflows focused on RNA target detection or quantification using real-time RT-PCR in a one-step format.

APPLICATIONS

Animal Health

One-Step RT-qPCR supports molecular monitoring workflows involving RNA targets associated with infectious agents, disease tracking, or outbreak-related investigation.

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Pathogen detection

For workflows focused on detecting RNA targets associated with animal pathogens. 

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Epidemiological Surveillance

For molecular monitoring workflows that enable the detection and analysis of target RNA molecules in research samples or surveillance programs.

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Outbreak Control

For outbreak-related investigation workflows where RT-qPCR helps evaluate RNA targets within a validated assay. 

APPLICATIONS

Food Safety & Quality

One-Step RT-qPCR can be relevant for food safety and quality workflows where RNA-based molecular assays are used for research, monitoring, or method development.

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Pathogen Monitoring

For workflows focused on monitoring RNA targets associated with microorganisms relevant to food safety research. 

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Pathogen Root Cause Analysis

For the evaluation of contamination patterns or potential sources, when the assay has been validated for the intended context. 

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Facility Monitoring

For environmental or facility monitoring programs where RNA-based targets are part of the molecular testing strategy. 

 

RESOURCES

Technical documentation

Technical Data Sheet / Protocol

 

RESOURCES

Technical Documentation

Technical Data Sheet / Protocol

DeCodi-Fi™ All-In-One Mix TDS / Protocol

VIEW 


DeCodi-Fi™ All-In-One Mix TDS / Protocol

VIEW 

Brochure

Quick Start Guides

DeCodi-Fi™ All-In-One Mix Quick Start Guide

VIEW


DeCodi-Fi™ PCR Kit Quick Start Guide

VIEW

 

Testimonials

Recurso 29-3
Kura Biotech's enzyme generates more homogeneous products, requires less template to amplify, and also needs shorter extension times in each amplification cycle. Therefore, it is more efficient and has proofreading activity that enables the generation of more homogeneous products.

Carlos Loncoman, Ph.D.

Assistant Professor, Universidad Austral de Chile
Recurso 24-4
I just tested DeCodi-Fi™ and compared it to the one I regularly use in the lab for cloning. The yield (amount of product) is higher, and without a doubt, I can say that I like the product because it is so simple and fast to work with, while also giving me confidence that it is a high-fidelity enzyme. The kit is very easy to use since everything comes ready to go, which is really convenient.

Cristian Droppelmann, Ph.D.

Research Associate/Team Leader, The University of Western Ontario
Recurso 12-Oct-13-2025-05-48-14-6057-PM
I want to highlight the speed of the PCR—it shortens the reaction time by about 20–30 minutes. The PCR product yield is great, making it easy to identify the desired fragment. I'm very satisfied with the product. One of the diseases I study involves a candidate gene with high GC content and pseudogenes, which makes PCR quite challenging. I work with limited amounts of DNA and still achieve high yields of the desired product. When dealing with patient samples, where material is low, that's a major advantage.

Paola Krall, Ph.D.

Academic, Universidad de Chile
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Kura Biotech's enzyme is of excellent quality and surpasses many of the options currently available on the market. The objective of the experiment was to generate a plasmid encoding a truncated protein using the overlap PCR technique. The results with DeCodi-Fi™ were very positive: we managed to correctly generate the desired plasmid, and the PCRs were fast and consistent. No errors or aberrant products were observed at any point in the process.

Ignacio Valencia

Researcher, Platech Company

SUPPORT

Frequently Asked Questions

 

When should I choose DeCodiFi™ Alpha?

Choose DeCodiFi™ Alpha when your workflow requires ultra-high fidelity NGS library amplification, uniform coverage, robust low-input performance, and stability when additional PCR cycles are needed.

How is DeCodiFi™ Alpha different from DeCodiFi™ High-Fidelity Polymerase?

DeCodiFi™ High-Fidelity Polymerase is designed for broader high-fidelity PCR and sequencing workflows. DeCodiFi™ Alpha is designed specifically for ultra-high fidelity NGS library amplification, with emphasis on polymerase error rate, coverage uniformity, low-input performance, and library complexity.

What should I evaluate when choosing a polymerase for NGS library amplification?

Evaluate polymerase error rate, coverage uniformity, GC bias, library yield, input DNA requirements, overcycling tolerance, and compatibility with your downstream sequencing workflow.

Can DeCodiFi™ Alpha help reduce PCR errors in sequencing libraries?

DeCodiFi™ Alpha is designed to reduce polymerase-introduced errors during NGS library amplification. In draft performance data, DeCodiFi™ Alpha was evaluated against multiple high-fidelity polymerase mixes using error per million in Illumina libraries of the complete E. coli genome.

Does DeCodiFi™ Alpha support uniform coverage?

Yes. DeCodiFi™ Alpha is designed to support uniform coverage across genomic landscapes and help reduce amplification bias during library amplification. Draft performance data includes coverage analysis from E. coli Illumina libraries.

Is DeCodiFi™ Alpha suitable for low-input NGS library prep?

DeCodiFi™ Alpha is designed to support low-input library amplification workflows, showing robust library yields from 5 pg DNA under tested conditions.

Is DeCodiFi™ Alpha intended for long-read sequencing?

DeCodiFi™ Alpha is positioned for demanding short-read NGS applications. For long-read sequencing or long-fragment amplification workflows, DeCodiFi™ Long&Complex may be a more relevant starting point.

Can I get technical support for evaluating DeCodiFi™ Alpha?

Yes. Our team can help evaluate whether DeCodiFi™ Alpha fits your NGS library amplification workflow, especially if you are working with low-input DNA, amplification bias, overcycling, or variant-sensitive applications.

CONTACT US

Ready to evaluate Kura Biotech’s One-Step RT-qPCR Kit?

Request product information or connect with our team here

 

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