一种核酸测序方法、反应体系和试剂盒

By using ddNTPs to terminate the sequencing reaction at different positions on the nucleic acid template, the problems of short read lengths and resource waste in high-throughput sequencing are solved, enabling the reading of longer sequence fragments and simultaneous sequencing of multiple samples, thus improving sequencing quality and efficiency.

CN108330186BActive Publication Date: 2026-07-17MGI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MGI TECH CO LTD
Filing Date
2017-01-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing high-throughput sequencing technologies suffer from problems such as short read lengths and data waste, especially in next-generation sequencing, where short read lengths lead to low sequence assembly efficiency and insufficient resource utilization when sequencing multiple samples.

Method used

Dideoxynucleotides (ddNTPs) are used to sequence at different positions on the nucleic acid template. Sequencing is blocked by a termination reaction, and excess ddNTPs are removed by elution reagents to achieve multi-segment sequencing of the same nucleic acid template. ddNTPs are used to ligate the ends of the generated sequencing strand to block the first segment of sequencing, and new primers are used to hybridize at other positions to perform the next segment of sequencing.

Benefits of technology

The sequencing read length was increased, the amount of data was increased, and simultaneous sequencing of multiple samples was achieved, thereby improving resource utilization and sequencing quality.

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Abstract

本申请公开了一种核酸测序方法、反应体系和试剂盒。本申请的核酸测序方法包括在同一核酸模板的不同位置进行测序,并且,在第一位置测序完成后,向反应液中加入双脱氧核苷酸进行终止反应,反应终止后洗脱去除多余的双脱氧核苷酸,然后再对同一核酸模板进行第二位置的测序。本申请的核酸测序方法,采用ddNTP对测序反应进行终止,以方便进行第二段测序,为核酸测序提供了一种高效、温和的终止方法,不会影响后续的测序质量,提高了测序质量与产量;为同一核酸模板实现高效的两段或多段测序奠定了基础。
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