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Pyromark assay design software

Manufactured by Qiagen
Sourced in Germany, United States, United Kingdom

The PyroMark Assay Design software is a tool developed by Qiagen for designing pyrosequencing assays. It is used to create and optimize pyrosequencing assays for various applications, including gene expression analysis, DNA methylation studies, and SNP genotyping.

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107 protocols using pyromark assay design software

1

Genotyping of OPRM1 Variant Using Pyrosequencing

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Genomic DNA (gDNA) was extracted from whole blood collected into EDTA tubes using an in-house salting-out method49 (link) at the Genomics Research Centre, Queensland University of Technology, Brisbane. A NanoDrop™ ND-1000 spectrophotometer (ThermoFischer Scientific Inc., Waltham, MA, USA) was used to measure DNA concentration and purity before dilution to 15–20 ng/μL and storing as stock gDNA at 4 °C. Genotyping of OPRM1 (rs1799971, 118A>G N40D) was conducted via pyrosequencing with primers designed using Pyromark Assay Design software (QIAGEN): 5ʹ CACTGATGCCTTGGCGTAC, 5ʹ GGGCACAGGCTGTCTCTC (biotinylated) and sequencing primer 5ʹ CAACTTGTCCCACTTAGAT. Pyrosequencing was performed on a QSeq platform (BioMolecular Systems) using Pyromark Gold Q24 reagents (QIAGEN). Sequencing traces were analyzed with QSeq software, version 2.1.3 (BioMolecular Systems). All genotyping was conducted by investigators blinded to sample identity. Genotypes were assigned using all of the data from the study simultaneously and not in batches.
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2

Pyrosequencing Methylation Analysis of Sperm DNA

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Primers were designed for genes of interest using PyroMark Assay Design software (Qiagen, United States) (Supplementary Table S1). Bisulfite conversion of 40 ng of spermatic DNA was prepared by EZ DNA Methylation-Gold kit (Zymo Research, United States). Twenty ng of bisulfite converted DNA were amplified for pyrosequencing using Pyromark Q24 kit (Qiagen, United States) and Pyromark Q24 Vacuum workstation (Qiagen, United States) according to the manufacturer’s instructions.
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3

Bisulfite Pyrosequencing of Leptin Promoter Methylation

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DNA samples (500 ng) were sodium bisulfite-modified using the EZ DNA methylation Kit (Zymo Research, Irvine, CA, USA), following the manufacturer’s protocols. For methylation detection, bisulfite pyrosequencing was employed. Primers (Integrated DNA Technologies, Inc, Coralville, IA) were designed using the PyroMark Assay Design software version 2.0.1.15 (Qiagen) in a region previously associated with leptin expression (Bouchard et al., 2010 (link); Melzner et al., 2002 (link); Yokomori, Tawata, & Onaya, 2002 (link)). The PyroMark PCR kit (Qiagen) and PCR primers (Table S1) were used to amplify a 383 base pair region in the leptin promoter; cycling conditions were 94 °C for 15 min followed by 50 cycles of 94 °C for 1 min, 56 °C for 1 min and 72 °C for 1 min with a final extension of 10 min at 72 °C. Pyrosequencing was performed in triplicate using the Pyromark MD (Qiagen) instrument with two forward assays covering a total of 23 CpG loci (Tables S1 and S2). Non-CpG cytosines within each read served as internal controls to verify bisulfite DNA modification efficiency (>95% in all samples) and each pyrosequencing run included a no template control; all samples were sequenced by the same operator. DNA methylation results were analyzed with the PyroMark CpG software, version 1.0.11 (Qiagen).
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4

Pyrosequencing of MEG3 Locus

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Pyrosequencing was performed to technically validate BisPCR2 at the MEG3 locus. Forward and reverse primers designed with Qiagen® PyroMark Assay Design software were used for both methods, and for pyrosequencing the reverse primer was biotinylated. Pyrosequencing primer sequences were as follows: Forward: 5′-GGGGTGATAGTTTTTGGTTTATATT-3′, Reverse: 5′-CCATAACCAACACCCTATAAT-3′, Sequencing: 5′-TTTTTATATATTGTGTTTGAATTTA-3′. Bisulfite-converted genomic DNA from human islets, processed as described above, was amplified with the Qiagen® PyroMark PCR Kit (Cat. No. 978703) per the manufacturer’s protocol. The pyrosequencing reaction was carried out using Qiagen® PyroMark Gold Q96 CDT Reagents on the PyroMark Q96 MD (QIAGEN) according to the manufacturer’s instructions.
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5

Quantifying TERT Promoter Methylation in Thyroid Cancer

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Methylation density at the TERT promoter was quantified in MTCs, normal thyroid samples and MTC cell lines by Pyrosequencing. Genomic DNA (150 ng) was subjected to sodium bisulfate modification using the EpiTect Bisulfite Kit (Qiagen AB, Sweden) according to the recommendations of the manufacturer. Converted DNA was then used as template for PCR amplification at 58°C annealing temperature. A Pyrosequencing assay targeting eight CpGs in the TERT promoter (Figure 1) was designed using PyroMark Assay Design software version 2.0 (Qiagen). The assay included the following primers: 5′-GGGTTTGTGTTAAGGAGTTTAAGT-3′ (forward biotinylated); 5′-AAACCCAAAACTACCTCCA-3′ (reverse); and 5′-CCAAAACTACCTCCAAAT-3′ (sequencing). The PCR products were immobilized to streptavidin-coated Sepharose beads and were captured using a pump with filter. Pyrosequencing reactions were run in a PyroMark Q24 and the data were analysed with the PyroMark Q24 software (Qiagen AB, Sweden). For each sample, a methylation index (Met I) was calculated as the mean methylation level of all CpG dinucleotides covered [28 (link)]. The methylation status in MTCs was defined based on the comparison to the normal thyroid samples.
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6

Targeted Bisulfite Pyrosequencing for DNA Methylation

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DNA extraction and sodium bisulfite treatment were performed in the same manner as above for WGBS sample processing. Bisulfite pyrosequencing primers were designed using PyroMark Assay Design software (Qiagen, Hilden, Germany) to target CpGs within DMRs from the male replication comparison. Bisulfite-converted DNA from each sample was amplified in triplicate for each primer set using the PyroMark PCR kit (Qiagen, Hilden, Germany) according to the manufacturer’s instructions, except using 50 ng of bisulfite-converted DNA and 40 PCR cycles. Each PCR product was checked with gel electrophoresis for specific amplification. Pyrosequencing was conducted using PyroMark Gold Q96 SQA Reagents (Qiagen, Hilden, Germany) with the PyroMark Q96 instrument (Qiagen, Hilden, Germany) according to the manufacturer’s instructions. Mean percent methylation for each region was compared to diagnosis outcome using linear regression and compared to WGBS methylation using Pearson’s r.
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7

DNA Methylation Quantification Protocol

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Bisulfite‐treated genomic DNA was amplified using a set of primers designed with PyroMark Assay Design Software version 2.0.01.15 (QIAGEN GmbH, Table S4). The target region for sequencing began 10 nucleotides (nt) before and ended 26 nt after cg15126544. PCR product pyrosequencing and methylation quantification were performed with sequencing primers using the PyroMark 24 Pyrosequencing System, version 2.0.6 (QIAGEN GmbH), according to the manufacturer's instructions.
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8

Bisulfite Conversion and PCR Amplification

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Bisulfite-converted DNA was PCR-amplified using primers designed in the Pyromark Assay Design Software (Qiagen, Germantown, MD, USA), with details of the assay and quality control previously published [22 (link)]. PCR and sequencing primers are listed in Table S1.
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9

Methylation Analysis of ccRCC Tissues

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Genomic DNAs from the 19 ccRCC tissues were extracted with TaKaRa MiniBEST Universal Genomic DNA Extraction Kit Ver.5.0. DNA concentrations were measured with a NanoDrop2000 spectrophotometer (USA). The methylation levels of CpG sites were evaluated with pyrosequencing. PyroMark Assay Design software (Qiagen) was used to design specific sets of primers for CpG PCR amplification and sequencing. The cg08995609 forward primer: GAGGGTTTTAGTTGGGGGATGTTA, reverse primer: ACCTAAAACCAAAAACAAATAAACAACT, sequencing primer: GTTGGGGGATGTTAT. All manipulations of bisulfite conversions, PCRs and pyrosequencings were previously described33 (link). DNA methylation of RAB25 promoter was quantified by MassARRAY EpiTYPER assays (Sequenom, San Diego, CA, USA). Primers were designed using the software sequenom®EpiDesigner, RAB25 sequences of PCR primers used in the study, tag-forward: aggaagagagGTATTGTTGGGTTTTTGGAATTTGT; tag-reverse: cagtaatacgactcactatagggagaaggctATCTCAACCCCTAAAACCTCTACC. Procedures of methylation assessments and quality controls had been described previously49 (link).
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10

Validating Methylation Differences in GDM

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We sought to validate a few selected DMPs with relatively larger methylation differences between GDM and control groups in the epigenome wide association analysis. The study subjects were an independent random sample of 47 pairs of GDM and controls from the Shanghai Birth Cohort. 4 DMPs (CpG sites) were chosen as the corresponding delta betas were in the top 30 DMPs and the corresponding genes have been related to glucose homeostasis (30 (link), 31 (link)). These CpG sites were annotated to WSC Domain Containing 2 (WSCD2), phosphodiesterase 1C (PDE1C), and protocadherin Beta 15 (PCDHB15). DNA was sodium-bisulfite treated (EZ DNA Methylation-Lighting) and PCR-amplified with primers designed by PyroMark Assay Design software (version 2.0; Qiagen). Pyrosequencing was performed using PyroMark Q48 (Qiagen, appendix –Methodology in the pyrosequencing study).
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