title: GSM9306539: HygTK expression cassette with human PGK promoter at Ptn locus, nascent RNA, replicate 2; Mus musculus; OTHER
library_construction_protocol: Repli-seq and Bru-seq sample extraction methods have been described in PMC6546437. Repli-seq and Bru-seq library preparation methods have been described in PMC6546437.