title: GSM4566959: Brg1AID/AID_Vec_Tir1_D-3_ATAC; Mus musculus; ATAC-seq
library_construction_protocol: 5 × 10e4 freshly collected cells were aliquoted into a new tube and spun down at 500 × g for 5 min at 4 °C. The cell pellet was incubated in 50 µl of ATAC-RSB buffer (10 mM Tris-HCl pH 7.4, 10 mM NaCl, 3 mM MgCl2) containing 0.1% NP-40, 0.1% Tween-20, and 0.01% digitonin (Promega) on ice for 3 min and was washed out with 1 ml of ATAC-RSB buffer containing 0.1% Tween-20. Nuclei were collected by centrifugation at 500 × g for 10 min at 4 °C, then resuspended in 50 µl of transposition reaction buffer (25 µl 2x Tagment DNA buffer, 2.5 µl transposase (100 nM final; Illumina), 16.5 µl PBS, 0.5 µl 1% digitonin, 0.5 µl 10% Tween-20, 5 µl H2O). The reaction was incubated at 37 °C for 30 min with mixing (1000 r.p.m.) and directly subjected to DNA purification using the MinElute Reaction Cleanup Kit (Qiagen) according to the manufacturer's instructions. DNA was amplified with PCR using Nextera i7- and i5-index primers for Illumina protocols.
attributes.tag: GEO Accession
attributes.value: GSM4566959