title: GSM5121221: P1 molar epithelium; Mus musculus; RNA-Seq
library_construction_protocol: Molars were dissected with sharp tweezers from seven littermates of P7 Krt14-RFP mice. Single cell dissociation was essentially performed as previously described (Li et al. 2015). Briefly, dissected incisors were incubated in 4 mg/ml Dispase II (Roche) for 14 min at 37°C. Then incisors were placed in cold DMEM/F12 and dental epithelium and mesenchyme were separated under microscope. The tissues are then placed in Accutase (Sigma) for 30min at 37°C. After pipetting up and down using 1000 μm tips, single cell suspension was further produced through a 70 μm sterile cell strainer. The cells were resuspended with 0.04% BSA containing cold PBS. Single-cell suspensions were loaded onto a 10X Chromium Controller (10X Genomics) and library preparation was performed according to the manufacturer's instructions for the 10X Chromium Next GEM Single Cell Library kit v3 (10X Genomics).  Libraries were then pooled and sequenced on 4 lanes on a NextSeq500 sequencer (Illumina) using 10X Genomics recommended reads configuration.