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14 protocols using kapa biosystems kit for library quantitation

1

RNA-Seq Library Preparation and Sequencing

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RNA samples were submitted to the Genomics Core Laboratory in the Heflin Center for Genomic Sciences at our institution for sample preparation and sequencing. mRNA‐sequencing was performed on the Illumina HiSeq2000. The quality of the total RNA was assessed using the Agilent 2,100 Bioanalyzer followed by two rounds of poly A+ selection and conversion to cDNA. TruSeq library generation kits were utilized as per the manufacturer's instructions (Illumina, San Diego, CA). The cDNA libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA) prior to cluster generation. Clusters were generated to yield approximately 725–825 K clusters/mm2. Cluster density and quality were determined during the run after the first base addition parameters were assessed. Paired end 2X50bp sequencing runs were performed to align the cDNA sequences to the reference genome.
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2

Illumina-based mRNA Sequencing Protocol

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mRNA-sequencing was performed on the Illumina HiSeq2500 using the sequencing reagents and flow cells providing up to 300 Gb of sequence information per flow cell. Briefly, the quality of the total RNA was assessed using the Agilent 2100 Bioanalyzer followed by two rounds of polyA+ selection and conversion to cDNA. We used the stranded mRNA library generation kits per manufacturer's instructions (Agilent, Santa Clara, CA). Library construction consists of random fragmentation of the polyA mRNA, followed by cDNA production using random primers with inclusion of Actinomycin D in the first strand reaction. The ends of the cDNA are repaired, A-tailed and adaptors ligated for indexing (four different barcodes per lane) during the sequencing runs. The cDNA libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA) before cluster generation. Clusters were generated to yield approximately 725 to 825 K clusters per mm2. Cluster density and quality were determined during the run after the first base addition parameters were assessed. We ran paired end 2 × 50 bp sequencing runs to align the cDNA sequences to the reference genome.
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High-throughput RNA-seq library preparation

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Approximately 500 ng of RNA from each sample was used to prepare individually barcoded strand-specific RNA-seq libraries. rRNA and mitochondrial RNA was removed using Ribo-Zero Gold Removal Magnetic Kit for human/mouse/rat (Epicentre, now Illumina) following the manufacturer’s instructions. mRNA was purified using Agencourt RNAClean XP kit. Libraries were constructed using ScriptSeq™ Complete Kit (Epicentre, now Illumina) as per manufacturer’s instructions. Quality and quantity of the libraries were determined using a Bioanalyzer (Agilent) and Qubit® (Invitrogen), respectively. Libraries were then quantified by qPCR in an Applied Biosystems® 7500 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems). Next-generation sequencing was performed using an Illumina HiSeq 2000 flow cell with one 150-bp end run. The NCBI Gene Expression Omnibus (GEO) accession number for the RNA-seq data reported in this paper is GSE88801.
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4

RNA-Seq Workflow with Illumina HiSeq2000

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RNA-sequencing was performed on Illumina HiSeq2000 in UAB Heflin Genomic Core Facility. cDNA libraries were constructed with TruSeq library generation kits (Illumina). The cDNA ends were repaired, A-tailed, and adaptor ligated for indexing. The cDNA library was then quantitated by real time PCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems) prior to cluster generation. Clusters were then generated to yield approximately 725–825 K clusters/mm2 and the density and quality were determined after the first base addition. Paired end 2 × 50bp sequencing runs were performed for all samples. After sequencing, the data was converted to FASTQ Sanger format and then aligned to mouse reference genome mm9 by TopHat49 (link). Cufflinks was used to assemble transcripts, estimate the abundances, and test for differential expression. Cuffmerge was used to compare the assembled transcripts to the reference annotation across multiple experiments. Cuffdiff was then used to determine the change in transcript levels. Cufflinks, Cuffmerge and Cuffdiff analyses were performed as described previously50 . Gene ontology analysis was performed using DAVID (http://david.abcc.ncifcrf.gov/).
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5

Illumina HiSeq2500 RNA Sequencing Protocol

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Sequencing of the total RNA was performed at the University of Alabama at Birmingham (UAB) Heflin Center for Genomic Science Core Laboratories. mRNA-sequencing was performed on the Illumina HiSeq2500 using the latest versions of the sequencing reagents and flow cells providing up to 300 Gb of sequence information per flow cell. Briefly, the quality of the total RNA was assessed using the Agilent 2100 Bioanalyzer followed by 2 rounds of poly A+ selection and conversion to cDNA. We used the TruSeq library generation kits as per the manufacturer’s instructions (Illumina, San Diego, CA, USA). Library construction consists of random fragmentation of the polyA mRNA, followed by cDNA production using random primers. The ends of the cDNA were repaired and A-tailed, and adaptors ligated for indexing (up to 12 different barcodes per lane) during the sequencing runs. The cDNA libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA) prior to cluster generation. Clusters were generated to yield approximately 725–825 K clusters/mm2. Cluster density and quality were determined during the run after the first base addition parameters were assessed. We ran paired end 2 × 50 bp sequencing runs to align the cDNA sequences to the reference genome (Table S1).
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6

RNA-Seq Workflow with Illumina HiSeq2000

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RNA-sequencing was performed on Illumina HiSeq2000 in UAB Heflin Genomic Core Facility. cDNA libraries were constructed with TruSeq library generation kits (Illumina). The cDNA ends were repaired, A-tailed, and adaptor ligated for indexing. The cDNA library was then quantitated by real time PCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems) prior to cluster generation. Clusters were then generated to yield approximately 725–825 K clusters/mm2 and the density and quality were determined after the first base addition. Paired end 2 × 50bp sequencing runs were performed for all samples. After sequencing, the data was converted to FASTQ Sanger format and then aligned to mouse reference genome mm9 by TopHat49 (link). Cufflinks was used to assemble transcripts, estimate the abundances, and test for differential expression. Cuffmerge was used to compare the assembled transcripts to the reference annotation across multiple experiments. Cuffdiff was then used to determine the change in transcript levels. Cufflinks, Cuffmerge and Cuffdiff analyses were performed as described previously50 . Gene ontology analysis was performed using DAVID (http://david.abcc.ncifcrf.gov/).
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7

Transcriptome Profiling via RNA-Seq

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Total cellular RNA was extracted using the RNeasy kit (Qiagen) according to the manufacturer’s protocol. RNA was sent to the UAB Genomics Core for sample quality control (QC), library preparation, and sequencing. Briefly, the quality of the total RNA was assessed using the Agilent 2100 Bioanalyzer followed by 2 rounds of poly A+ selection and conversion to cDNA. The NEBNext® Ultra Directional RNA Library Prep Kit for Illumina® library generation kit (New England Biolabs) was used per the manufacturer’s instructions. The libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA). Subsequently, sequencing was performed on the Illumina NextSeq500 using the latest versions of the sequencing reagents and flow cells with single-end 75 bp reads. Raw and processed data were deposited in Gene Expression Omnibus (GEO, Accession # GSE164082).
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8

Illumina HiSeq2500 mRNA Sequencing

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mRNA-sequencing was carried out on the Illumina HiSeq2500 following the established protocols. RNA-seq library preparation was done using the Agilent SureSelect Stranded kit (Agilent, Santa Clara, CA) as per the manufacturer's instruction. The libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA) both immediately prior to and after library construction. We conducted paired end 50-bp sequencing for downstream analyses.
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9

RNA-Seq Analysis of hns Mutant

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RNA-Seq was performed on the Illumina HiSeq2000 system using the latest versions of sequencing reagents and flow cells providing up to 300 Gb of sequence information per cell. The quality of the RNA was assessed using the Agilent 2100 Bioanalyzer and samples were subsequently converted to cDNA. Libraries were constructed using the TruSeq library generation kits as per the manufacturer’s instructions (Illumina, San Diego, CA). The cDNA libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA) prior to cluster generation. Clusters were generated to yield approximately 725K – 825K clusters/mm2. Paired-end 50 bp sequencing runs were conducted to align the cDNA sequences to the reference genome. The TopHat software and the short read aligner Bowtie were used to align the raw RNA-Seq fastq reads to the reference genome (Tables 1 and 2). Transcripts assembly, abundance and evaluation of differential expression were accomplished using the Cufflinks software. Genes exhibiting a fold change ≥ ±2.0 and q-value < 0.05 were considered differentially expressed in the hns mutant.
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10

RNA-Seq Workflow for Mouse Transcriptome Analysis

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RNA-Seq was performed using 50nt paired-end reads on the Illumina HiSeq 2500 system at the UAB Heflin Center for Genomic Sciences. RNA quality was assessed using an Agilent 2100 Bioanalyzer and samples were subsequently converted to cDNA. Libraries were constructed using the TruSeq library generation kits as per the manufacturer’s instructions (Illumina, San Diego, CA). cDNA libraries were quantitated using qPCR in a Roche LightCycler 480 with the Kapa Biosystems kit for library quantitation (Kapa Biosystems, Woburn, MA) prior to cluster generation. Clusters were generated to yield approximately 725 K–825 K clusters/mm2.
The quality of the sequencing reads was verified with FastQC (version 0.11.3; http://www.bioinformatics.babraham.ac.uk/projects/fastqc/). The mean Phred quality score at almost every position was found to be above 30, except in one sample, which was excluded from further analysis. Reads were aligned using Tophat 2.0.10 against the mm10 mouse reference downloaded from Illumina’s iGenome resource (https://support.illumina.com/sequencing/sequencing_software/igenome.html) (60 (link)). MultiQC was used to produce a combined QC report for sequence quality and alignment (61 (link)).
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