title: GSM2825796: w96h3 (miRNA); Homo sapiens; miRNA-Seq
library_construction_protocol: Total RNA was extracted from cells using TRIzol reagent (Invitrogen) cDNA Library Construction:  The cDNA libraries were constructed for each pooled RNA sample using the VAHTSTM Total RNA-seq (H/M/R) according to the manufacturer's instructions. Generally, the protocol consists of the following steps: depletion of rRNA and fragmented into 150-200 bp using divalent cations at 94 ℃ for 8 min. The cleaved RNA fragments were reverse-transcribed into first-strand cDNA, second-strand cDNA synthesis, fragments were end repaired, A-tailed and ligated with indexed adapters. Target bands were harvested through VAHTSTM DNA Clean Beads .The products were purified and enriched by PCR to create the final cDNA libraries and quantified by Agilent2200. The tagged cDNA libraries were pooled in equal ratio and used for 150 bp paired-end sequencing in a single lane of the Illumina Xten with 51 plus 7 cycles by NovelBio Corp. Laboratory, Shanghai.   miRNA Library Construction and RNA Sequencing:  The complementary DNA (cDNA) libraries for single-end sequencing were prepared using Ion Total RNA-Seq Kit v2.0 (Life Technologies) according to the manufacturer's instructions. The cDNA library had been size selected by PAGE Gel electrophoresis for miRNA sequencing. The cDNA libraries were then processed for the Proton Sequencing process according to the commercially available protocols. Samples were diluted and mixed, the mixture was processed on a OneTouch 2 instrument (Life Technologies) and enriched on a OneTouch 2 ES station (Life Technologies) for preparing the template-positive Ion PI™ Ion Sphere™ Particles (Life Technologies) according to Ion PI™ Template OT2 200 Kit v2.0 (Life Technologies). After enrichment, the mixed template-positive Ion PI™ Ion Sphere™ Particles of samples was loaded on to 1 P1v2 Proton Chip (Life Technologies) and sequenced on Proton Sequencers according to Ion PI Sequencing 200 Kit v2.0 (Life Technologies) by NovelBio Corp. Laboratory, Shanghai.
attributes.tag: GEO Accession
attributes.value: GSM2825796