{"id":3032,"date":"2024-06-26T00:14:39","date_gmt":"2024-06-25T16:14:39","guid":{"rendered":"https:\/\/opentrons.com.cn\/?post_type=knowledge2&p=3032"},"modified":"2024-09-02T18:56:55","modified_gmt":"2024-09-02T10:56:55","slug":"lyswift2sturbo-dnawksjhzot-2kszb","status":"publish","type":"post","link":"https:\/\/opentrons.com.cn\/en\/news\/lyswift2sturbo-dnawksjhzot-2kszb\/","title":{"rendered":"Quickly prepare high-quality next-generation sequencing libraries using the Swift2S\u2122 Turbo DNA Library Kit for OT-2"},"content":{"rendered":"\n
Summary The Swift2S\u2122 Turbo DNA Library Kit is automated with OT-2 for rapid and robust preparation of high-quality libraries for next-generation sequencing. .Libraries with 100 and 1 ng input were prepared from mixtures of bacteria with varying GC content, including: Staphylococcus aureus, Escherichia coli, and Streptomyces avermida. .The performance of hand-prepared libraries and openteronOT-2 is comparable in terms of scale and throughput. Metrics such as complexity, coverage, and relative representation were also observed for similar sequencing.<\/p>\n\n\n\n
Introduction Next-generation sequencing (NGS) library preparation requires multiple steps for fragmentation, polishing, adenylation, ligation, and PCR, requiring 2 to 5 master mix additions, incubations, and SPRI cleanup. Laboratory automation can reduce the hands-on time of a technique while increasing the reliability of experiments due to human error and contamination. Opt-2 is an affordable liquid handling platform, starting from $5,000, that enables automation of complex library preparation. Automation and implementation using the powerful fluidics of the Swift2S\u2122 Turbo DNA Library Kit (1) ensures fast and consistent performance for next-generation sequencing. A two- to three-hour Turbocharger protocol allowing varying input amounts of DNA (1 to . 250 ng), volumes, and sample types has been demonstrated. Featuring a simulated bacterial community, the Swift2S\u2122 Turbo DNA Library Kit with OT-2 is a fast and ideal library preparation solution for whole-genome sequencing, targeted exomes, genotyping, and metagenomics. Learning and other applications.<\/p>\n\n\n\n
Methods and Materials A library was prepared using the genomic DNA of three bacteria with different GC contents, namely Staphylococcus aureus (ATCC 25923D-5), Escherichia coli (ATCC 700926) and Streptomyces (ATCC 31267), mixed at the same molar concentration of DNA. . Libraries are hand-prepared by experienced Swift developers with 6 or 8 DNA Technology replicates, with 100 ng and 1 ng input per library ready. 8 technical replicates. Both inputs were also prepared on OT-2. The fragment master mix used in the 100 ng input sample prepared on OT-2 included RegentDE to slow down the fragmentation reaction (2). Add 5 ul of reagent DE to each reaction without adding reagent K2, increase the fragmentation time to 15 minutes, and prepare a total insert size of 350 bp. Use the PCR method to combine each indicator with 100 ng and 1 ng for 5 and 11 cycles respectively. 8. Randomly select libraries for sequencing, including input from OT-2 and manual sequencing. All sequencing is on Illumina MiSeq standard V2 PEx150. conduct. The rotor temperature and magnetic modules are used for active cooling of enzymes and magnetic bead cleaning protocols on the OT-2. For comparability analyses, reads were normalized to 1.9 million reads per sample.<\/p>\n\n\n\n