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Accession IconSRP135775

Transcriptome analysis of total RNA in human osteosarcoma cell line U2OS before and after inhibition of zinc finger protein ZNF768

Organism Icon Homo sapiens
Sample Icon 8 Downloadable Samples
Technology Badge IconIllumina HiSeq 1500

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Inhibition of ZNF768 function was achieved by conditional over expression expression of the C-terminal zinc finger of ZNF768 for 12h. For preparation of total RNA cells were resuspended in TRIzol reagent (Life Technologies) at 0.9Mio/ml and snap-frozen. After thawing RNA was extracted from 0.4ml of TriZol lysate using the direct-zol RNA Miniprep (Zymo Research, Irvine CA, USA) as described in the manufacturer's protocol. RNA was assessed for purity by UV-vis spectrometry (Nanodrop) and for integrity by Bioanalyzer (Agilent Bioanalyzer 2100, Agilent, Santa Clara USA)). RNA was of high purity (abs. 260/280 >1.9, abs 269/239>2.1) and integrity (Bioanalyzer RIN>9 ) and thus used for further processing. For production of RNA-seq libraries total RNA was DNAse treated (dsDNAse, Fermentas) and 100 ng of this RNA was processed with a strand-specific protocol (RNA-seq complete kit, NuGEN, San Carlos, USA). In brief the RNA was reverse transcribed to cDNA with a reduced set of hexamer primers, avoiding excessive representation of rRNA in the cDNA. Second strand cDNA synthesis was done in presence of dUTP. After ultrasonic fragmentation of the cDNA and end repair, Illumina-compatible adapter were ligated. Adapters contained uracil in one strand, allowing complete digestion of the second-strand derived DNA. After strand selection the libraries were amplified, assessed for correct insert size on the Agilent Bioanalyser and diluted to 10nM. Barcoded libraries were mixed in equimolar amounts and sequenced on an Illumina HiSeq1500 in single-read mode with a read length of 100 b. Overall design: ZNF768-deltaN
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