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7 protocols using perfecta qpcr fastmix 2

1

Frozen Epididymal Adipose Tissue RNA Isolation and qPCR

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Frozen epididymal adipose tissue was homogenized in Tri-Reagent (Fisher) and total RNA was isolated using Direct-zol RNA MiniPrep kit (Genesee). cDNA synthesis was performed using qScript cDNA supermix (QuantaBio) using a BioRad iQ5 thermocycler. Real-time qPCR was performed using PerfeCTa qPCR FastMix II (QuantaBio) and mouse specific TaqMan assays (ThermoFisher) on a 7500 fast Dx thermocycler. The delta-delta CT method was used to determine relative gene expression normalized to 18s expression. Reactions were performed in duplicate.
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2

Quantitative PCR Protocol for MNV Detection

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RNA from tissues was extracted via RiboZol (VWR) protocols, and RNA from cells was extracted with the ZR Viral RNA kit (Zymoresearch, Irvine, CA). DNA contamination was removed with Turbo DNase (ThermoFisher), and 1ug of RNA was used to generate cDNA with the ImpromII reverse transcriptase (Promega, Madison, WI). Quantitative PCR was performed using PerfeCTa qPCR FastMix II (QuantaBio, Beverly, MA), and the following oligo/probes were used for detection: MNV genomic RNA—Forward primer CACGCCACCGATCTGTTCTG, Reverse primer GCGCTGCGCCATCACTC, and Probe TGCGCTTTGGAACAATGG; RPS29—Forward primer GCAAATACGGGCTGAACATG, Reverse primer GTCCAACTTAATG AAGCCTATGTC, and Probe CCTTCGCGTACTGCCGGAAGC.
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3

Quantifying Virus and Immune Genes in Tissues

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RNA from tissues was isolated using RiboZol (Amresco) and RNA from cells or fluids was isolated using the ZR Viral RNA Kit (Zymoresearch). DNA contamination was removed using the DNAfree kit (Life Technologies). cDNA was generated with the ImPromII reverse transcriptase (Promega). Quantitative PCR was performed using PerfeCTa qPCR FastMix II (QuantaBio) ant the following primers and probes: MNV genomes - Forward primer CACGCCACCGATCTGTTCTG, Probe TGCGCTTTGGAACAATGG, Reverse primer GCGCTGCGCCATCACTC; Ifnb1 - Forward primer CTCCAGCTCCAAGAAAGGAC, Probe CAGGAGCTCCTGGAGCAGCTGA, Reverse primer GCCCTGTAGGTGAGGTTGAT; Ifnl2/Ifnl3 - Forward primer GGACCTGAAGCAGCTGCA, Probe GGCGCTCTTGGACCTGCAG, Reverse primer TTCTCCCAGACCTTCAGGGT; Ccl2 - Integrated DNA technologies (IDT) assay #Mm.PT.58.42151692; Il1a - IDT assay #Mm.PT.58.32778767. Absolute copy number was determined by comparing Ct values to a standard curve generated using DNA of known copy number encoding the target sequence. Samples are graphed as absolute copy number of the indicated target divided by absolute copy number of the housekeeping gene, Rps29. Samples with fewer than 1,000 copies of Rps29 were excluded.
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4

Liver RNA Isolation and qPCR

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For RNA isolation, 25 mg of frozen liver tissue was homogenized in Tri-Reagent (Fisher) and extracted using Direct-zol RNA MiniPrep kit (Genesee) according to manufacturer’s instructions. cDNA was synthesized on a BioRad iQ5 thermocycler using qScript cDNA supermix (QuantaBio) according to manufacturer’s instructions. Real-time RT-PCR analysis was performed using PerfeCTa qPCR FastMix II (QuantaBio) and TaqMan assay (ThermoFisher) on a 7500 fast Dx thermocycler. Relative gene expression was normalized to 18s expression and determined using the delta-delta CT method. All sample reactions performed in duplicate. All TaqMan assays used can be found in STAR methods.
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5

Quantifying Gene Expression by qRT-PCR

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Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted using PerfeCTa qPCR FastMix II (QuantaBio) together with 6-FAM/ZEN/IBFQ primer/probe sets (PrimeTime qPCR Assays, IDT) and VIC-labeled TaqMan Ribosomal RNA Control Reagents (Applied Biosystems) on Roche LightCycler 96 according to manufacturers’ protocols. Triplicate samples from three independent mice were analyzed for each group. Relative gene expression was calculated using the formula 2^−[Ct(target gene)−Ct(18S)] where Ct refers to the cycle threshold.
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6

Quantitative Analysis of Lipogenic Genes

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Total RNA was isolated from mouse liver using the Direct-zol RNA MicroPrep Kits (Zymo Research). RNA purity and concentration was determined using a nanodrop. cDNA was made using qScript cDNA SuperMix (Quantabio) and subjected to real-time polymerase chain reaction (RT-PCR) amplification with gene-specific primer using PerfeCTa qPCR FastMix II (Quantabio). The following primers were used for Taqman gene expression assay (Thermo Fisher Scientific): fatty acid synthase (FASN, #Mm00662319_m1); sterol regulatory element binding transcription factor 1-C (SREBP1-C, #Mm00550338_m1); acetyl-CoA carboxylase (ACC1, #Mm01304258_m1), stearoyl-CoA desaturase 1 (SCD1, #Mm00772290_m1), phosphatidate phosphatase (LPIN3, #Mm00499095_m1). Relative abundance of mRNA was normalized to endogenous control 18S.
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7

Quantitative Analysis of SULT2B1 Expression

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Total RNA was isolated using TRIzol Reagent (Thermo Fisher) according to the manufacturer's protocol. cDNA was synthesized with M-MuLV Reverse Transcriptase (New England Biolabs, Ipswich, MA) as described previously.18 (link) Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted on LightCycler 96 (Roche, Basel, Switzerland) using PerfeCTa qPCR FastMix II (Quantabio, Beverly, MA) according to the manufacturer's protocol. PrimeTime qPCR Assay probes specific for human SULT2B1b (Hs.PT.58.22508626) or for mouse Sult2b1 (Mm.PT.58.5982373) (Integrated DNA Technologies, Skokie, IL) were used and the transcript levels were normalized using TaqMan Ribosomal RNA Control Reagents (Thermo Fisher).
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