title: GSM5732484: Flox_4; Mus musculus; RNA-Seq
library_construction_protocol: Trizol mRNA from eukaryotic organisms was enriched using oligo(dT) beads. mRNA was fragmented randomly by adding fragmentation buffer, then the cDNA was synthesized by using mRNA template and random hexamers primer, after which a custom second-strand synthesis buffer (Illumina) , dNTPs, RNase H and DNA polymerase I were added to initiate the second-strand synthesis. Second, after a series of terminal repair, A ligation and sequencing adaptor ligation, the double-stranded cDNA library was completed through size selection and PCR enrichment.