GSM7886407: 7-wk control AT2 cell NKX2-1 ChIP-seq rep1; Mus musculus; ChIP-Seq
Whole lung ChIP-seq were performed as described in the associated paper and cell type specific ChIp-seqs were performed on chromatin from sorted nulcei based on a SunGFP reporter induced by recombination undercontrol of cell type specific Cre or CreERs. ChIP DNA quantity was measured using the Qubit dsDNA HS Assay Kit (Invitrogen, Q32851). 2-5ng of sample DNA was used to generate sequencing libraries using the NEB Next Ultra II DNA Library Prep Kit for Illumina (NEB, E7645). Step 3.1 in the NEB protocol was skipped to improve sample retention per manufacturer's recommendation. Samples were PCR amplified for 12 cycles and barcoded using indexing primers (New England BioLabs, E7335s or E7500S) followed by a final (.65 x -1 x bead volume) size selection and purification step using a SPRIselect reagent (Beckman Coulter, B23318). Samples were then verified for library size by gel electrophoresis and concentration measured using the Qubit HS dsDNA assay. Samples were then sequenced on the Illumina NextSeq500.