Target region enrichment method based on multiplex PCR, and reagent

    公开(公告)号:US10435736B2

    公开(公告)日:2019-10-08

    申请号:US15537396

    申请日:2015-12-09

    Abstract: Provided are a target region enrichment method based on multiplex PCR, and a reagent, the method comprising: connecting a first linker and a second linker respectively at two ends of a nucleic acid segment containing target regions to be enriched so as to obtain a linker-connected product; performing a PCR amplification on the linker-connected product using a first primer specifically bound to the first linker and a second primer specifically bound to the second linker to obtain an amplified product, the first primer or the second primer having a first affinity label; capturing a single strand having the first affinity label in the amplified product using a solid phase carrier; performing single primer linear amplification using a third primer with the captured single strand as a template; performing exponential amplification using the third primer and the first primer, with the linearly amplified product as the template, to obtain a product containing the target regions.

    Method and a sequence combination for producing nucleic acid fragments

    公开(公告)号:US10344317B2

    公开(公告)日:2019-07-09

    申请号:US15518760

    申请日:2014-10-13

    Abstract: Disclosed are a nucleic acid fragmentation method and a sequence combination. The method comprises the following steps: subjecting a denatured nucleic acid to annealing and an extension reaction by using a single-stranded 5′-end extension primer, wherein the single-stranded 5′-end extension primer comprises a sequencing platform adaptor sequence of a 5′ end and a connected random sequence, and the random sequence is subjected to annealing on a random site of the denatured nucleic acid; and directionally connecting a double-stranded 3′-end adaptor sequence to the 3′ end of the nucleic acid generated in the extension reaction, and carrying out denaturalization and purification to obtain a fragmented single-stranded nucleic acid with adaptor sequences on two ends.

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