Related Experiment Video
Updated: Sep 4, 2025

Amplification, Next-generation Sequencing, and Genomic DNA Mapping of Retroviral Integration Sites
Published on: March 22, 2016
Toehold-controlled ligation and transcription for accurate COVID-19 genotyping
Yanmin Gao1, Taoxue Wang1, Jiaojiao Li1
1School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300350, China; Zhejiang Shaoxing Research Institute of Tianjin University, Zhejiang, 312369, China.
Abstract:
The global pandemic of coronavirus disease 2019 (COVID-19) has significant impact on the entire human society. However, in the face of continually emerging more contagious SARS-CoV-2 variant, the risk to bog down into more severe crisis is around us anytime. Here, we introduce an isothermal, ultrasensitive method for identifying important SNV mutations of SARS-CoV-2. It is based on combined specificity of toehold-assisted linear probe ligation and in vitro transcription signal enlargement, TLT. A ready-to-use panel of TLT assay is developed including detection of 80 crucial SARS-CoV-2 SNVs, by which people could response to the next coming contagious virus variant more rapidly. These advanced point-of-care features make TLT one good approach for large scale population testing of special SARS-CoV-2 variants of interesting.

