New England Biolabs' SARS-CoV-2 Rapid Colorimetric LAMP Assay Kit Enables Visual Detection of Novel Coronavirus In 30 Minutes

The research use only kit can be used as a simple alternative to RT-qPCR for SARS-CoV-2 analysis

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New England Biolabs

Jul 10, 2020, 10:00 ET

IPSWICH, Mass., July 10, 2020 /PRNewswire/ -- New England Biolabs® (NEB®) today announced the launch of the SARS-CoV-2 Rapid Colorimetric LAMP Assay Kit, a Research Use Only (RUO) product that can be used for the detection of novel coronavirus, SARS-CoV-2 RNA. The kit serves as a simple alternative to RT-qPCR and enables visual detection of amplification of SARS-CoV-2 nucleic acid in just 30 minutes.

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Rapid, simple, color-based detection of SARS-CoV-2 RNA. The SARS-CoV-2 Rapid Colorimetric LAMP Assay was carried out using the indicated controls and either positive sample (human total RNA + synthetic SARS-CoV-2 RNA) or negative sample (human total RNA alone). Valid results for Non-Template Control (NTC, pink), Positive Control (PC, yellow) and Internal Control (IC, yellow) are shown. In the positive test sample, isothermal amplification of SARS-CoV-2 RNA leads to a color change from pink to yellow
Rapid, simple, color-based detection of SARS-CoV-2 RNA. The SARS-CoV-2 Rapid Colorimetric LAMP Assay was carried out using the indicated controls and either positive sample (human total RNA + synthetic SARS-CoV-2 RNA) or negative sample (human total RNA alone). Valid results for Non-Template Control (NTC, pink), Positive Control (PC, yellow) and Internal Control (IC, yellow) are shown. In the positive test sample, isothermal amplification of SARS-CoV-2 RNA leads to a color change from pink to yellow

The kit utilizes loop-mediated isothermal amplification (LAMP) to detect specific segments of the viral genome. This system provides a clear visual detection of amplification, based on the generation of protons and the subsequent drop in pH that occurs from the extensive DNA polymerase activity in a LAMP reaction. The decrease in pH produces a color change, with pink indicating a negative result and yellow indicating a positive result.

"RT-qPCR, the predominant nucleic acid amplification technology, requires a laboratory with sophisticated equipment, and can take hours to produce a readout," said Steven Chiu, Product Marketing Manager, DNA Amplification at NEB. "With the SARS-CoV-2 Rapid Colorimetric LAMP Assay Kit, all you need is a simple heat source and 30 minutes to visually detect amplification of SARS CoV-2 RNA. This assay thus has the potential to be very beneficial in a low-resource or point-of-care setting."

The kit includes WarmStart® Colorimetric LAMP 2X Master Mix with UDG (NEB #M1804) and a primer mix targeting the N and E regions of the viral genome. The WarmStart mix is an optimized formulation of Bst 2.0 WarmStart DNA Polymerase and WarmStart RTx in a special low-buffer reaction solution containing a visible pH indicator for rapid and easy detection of LAMP and RT-LAMP reactions. The inclusion of dUTP and UDG in the master mix reduces the possibility of carryover contamination between reactions.

Key features of the kit include:

  • Constant reaction temperature eliminates the need for sophisticated instrumentation, including thermocyclers
  • Assay targets N and E regions of the SARS-CoV-2 genome, enabling optimized sensitivity and specificity
  • Includes non-template control, positive control, and internal control to verify assay performance

"Many NEB products are already being used by our customers for the development and manufacture of diagnostic tools and vaccines for this novel coronavirus," said Ted Davis, Executive Director, Business and Product Development at NEB. "This kit further solidifies NEB's position as a supplier for virologists and molecular diagnostics developers alike, and we are proud to continue our support of COVID-19 research."

To learn more about how LAMP is well-suited for point-of-care and field diagnostics, as well as other LAMP assays designed to date, visit here. To learn more about NEB's efforts to support COVID-19 research, visit here.

This RUO product is not approved by the U.S. Food and Drug Administration, or any foreign equivalent, for diagnostic use.

About New England Biolabs

Established in the mid 1970's, New England Biolabs, Inc. (NEB) is the industry leader in the discovery and production of enzymes for molecular biology applications and now offers the largest selection of recombinant and native enzymes for genomic research. NEB continues to expand its product offerings into areas related to PCR, gene expression, sample preparation for next generation sequencing, synthetic biology, glycobiology, epigenetics and RNA analysis. Additionally, NEB is focused on strengthening alliances that enable new technologies to reach key market sectors, including molecular diagnostics development. New England Biolabs is a privately held company, headquartered in Ipswich, MA, and has extensive worldwide distribution through a network of exclusive distributors, agents and eight subsidiaries located in Australia, Canada, China, France, Germany, Japan, Singapore and the UK. For more information about New England Biolabs visit www.neb.com.

NEB®,NEW ENGLAND BIOLABS®, and WarmStart® are registered trademarks of New England Biolabs, Inc.

SOURCE New England Biolabs

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http://www.neb.com

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