title: GSM2668006: S2_scRNA_Trp_2_R1; Drosophila melanogaster; ncRNA-Seq
library_construction_protocol: scRNA protocol was adapted fron Nechaev et al, Science 2010.For each condition 20 10^6 of Triptolide treated drosophila cells were spiked with 2 10^6 untreated mouse embryonic stem cells. scRNA protocol was adapted from (Nechaev et al., 2010). Cells were re-suspended in ice-cold lysis buffer (10mM Tris (pH=7.4), 10mM NaCl, 3mM Mgcl2, 0.1mM EDTA, 0.5% NP40), incubated 10min on ice, span down. Nuclei were washed with ice cold (10mM Tris (pH=7.4), 10mM NaCl, 3mM Mgcl2, 0.1mM EDTA) and nuclear pellets were dissolved in Trizol (Thermofisher). RNA was size selected (17-200bp) using a two-step column purification strategy (RNA clean and concentrator, Zymo-R1016). 10μg of purified RNA was successively treated by 5’ dephosphorylation  - 20U at 37°C for 30min (Epicentre - RP8092H); 5’ terminator exonuclease - 1U in Buffer A at 30°C for 60min (Epicentre - TER51020); cap-clip decapping enzyme – 5U  at 37°C for 90min. After each reaction, short RNA was column purified (RNA clean and concentrator, Zymo-R1016). The resulting RNA was used for library preparation using TruSeq small RNA library  (Illumina). Libraries were purified on 6% TBE gels (150-300bp – Novex - EC6265BOX). Size distribution of the libraries were controlled on Bioanalyser High sensitivity (Agilent 5067-4626). Two biologically independent inhibition time courses were performed. The samples were run on an Illumina NextSeq generating 38bp paired-end reads.
attributes.tag: GEO Accession
attributes.value: GSM2668006