title: GSM6755931: E15_5_ATAC_1; Mus musculus; ATAC-seq
library_construction_protocol: Fetal pancreas were harvest at E11.5, E13.5 and E15.5, digested in  TrypLE™ Express (ThermoFisher 12605010) and then purified by flow cytometry. DNA libraries were constructed following the manufacturer's instructions of the Trueprep index kit v2 (Vazyme, TD202) and thereafter sequenced to an average of 20 million reads per sample