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Pyromark q24 application software 2

Manufactured by Qiagen
Sourced in Germany

The PyroMark Q24 Application Software 2.0 is a software package designed to operate the PyroMark Q24 system, a real-time pyrosequencing platform. The software enables the management and analysis of pyrosequencing data generated by the PyroMark Q24 instrument.

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4 protocols using pyromark q24 application software 2

1

PIK3CA Mutation Detection by Pyrosequencing

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DNA extraction for mutational analysis was performed using the QIAamp DNA FFPE Tissue Kit (Qiagen, Hilden, Germany). Thereafter, pyrosequencing was used to detect PIK3CA mutations of exons 4, 7, 9, and 20 (Fig. 2 and 3). For pyrosequencing, the regions of interest were amplified via polymerase chain reaction (PCR) using the PyroMark PCR Kit (Qiagen, Hilden, Germany). We used the PCR primers for PIK3CA exons 20 and 9 as in Nosho et al. [38 (link)]. However, while the sequencing primers for PIK3CA exon 20 were based on the primers in Nosho et al., we slightly modified them for PIK3CA exon 9 (9RS-1 and 9RS-3) [38 (link)].
Pyrosequencing was performed on a PyroMark Q24 MDx Instrument according to the manufacturer’s user manual (Qiagen, Hilden, Germany). To design the different pyrosequencing assays and to analyze the results, we used the PyroMark Q24 Application Software 2.0 (version 2.0.6) (Qiagen, Hilden, Germany).
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2

Pyrosequencing of BRAF, KRAS, and PIK3CA

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Pyrosequencing of BRAF (codon 600), exon 3 of KRAS (codons 12 and 13), and PIK3CA (exon 9) was performed using the PyroMark Q96 ID QIAGEN software 2.5 system according to the manufacturer’s manual. For pyrosequencing, we used specific primers one of which was biotinylated to immobilize with streptavidin beads (GE healthcare) and to amplify each target region. The pyrosequencing reaction applied to Roche PCR 480 contained 20 ng of genomic DNA and results were analyzed by PyroMark Q24 Application Software 2.0 (v.2.0.6, Qiagen, Hilden, Germany). Finally, the results were double-checked by a High-Resolution Melting (HRM) analysis [21 (link)].
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3

Epigenetic Profiling of RIG-I/DDX58 Promoter

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Pyrosequencing was conducted for four CpGs sites within the RIG-I/DDX58 promoter region. Briefly, 500 ng of each genomic DNA sample was bisulfite-converted using the EpiTect Plus DNA bisulfite kit (Qiagen, Hilden, Germany). The primer sequences used for bisulfate pyrosequencing are listed in Supplementary Table S1. The PCR program was 95 °C for 5 min, 40 cycles of 94 °C for 30 s, 56 °C for 30 s and 72 °C for 30 s, followed by a final extension at 72 °C for 10 min. Single-stranded DNA templates were prepared from the biotinylated PCR product using streptavidin-coated sepharose beads (streptavidin sepharose high performance, GE Healthcare, Inc., Chicago, IL, USA), where the sequence primer was annealed. Primed templates were sequenced using the PyroMark Q24 System (Qiagen, Inc.) and the assay setup was generated using PyroMark Q24 Application Software 2.0 (Qiagen, Inc.).
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4

DNA Methylation Analysis by Pyrosequencing

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Pyrosequencing was conducted for 4 of 5CpGs including the Target id: cg25152348 according to the standard protocol (Fig 1). Briefly, 500 ng of each genomic DNA sample was bisulfite-converted using EpiTect Plus DNA Bisulfite Kit (Qiagen, Inc.), purified and recovered. Amplifications were performed in a total volume of 25 μl containing 12.5 μl of 2✕ PyroMark PCR Master Mix, 2.5 μl of 10✕ CoralLoad Concentrate, 0.5 μl of 10 μM forward primer (5′-GTTTAAATTGGTGGTAGTTTAAAGT-3′), 0.5 μl of 10 μM biotin labeled reverse primer (5′- -biotin-TCCACCTCCCAATTCTTAATAAAATC-3′), 1.0 μl of the bisulfited DNA, and PCR-grade water. The thermal profile was 95°C for 15 min, 45 cycles of 94°C for 30 sec, 56°C for 30 sec and 72°C for 30 sec, followed by a final extension at 72°C for 10 min. Single-stranded DNA templates were prepared from 20 μL of the biotinylated PCR product using Streptavidin-coated Sepharose beads (Streptavidin Sepharose High Performance. GE Healthcare, Inc.) and 0.3 μM sequence primer (5′-TTTGGGAGGGAATAGTAAAA-3′) annealed to this. Primed templates were sequenced using PyroMark Q24 System (Qiagen, Inc.) and the assay setup generated using PyroMark Q24 Application Software 2.0 (Qiagen, Inc.).
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