title: GSM7849841: titration_S2-Zld-DBD_400_rep1; Drosophila melanogaster; ATAC-seq
library_construction_protocol: 2×10^5 cells were harvested for ATAC-seq by centrifugation at 600 × g for 3 minutes at RT. Cells were washed once in 100 µL 1X PBS and resuspended in 100 µL ATAC lysis buffer (10 mM Tris pH 7.5, 10 mM NaCl, 3 mM MgCl2,0.1% NP-40). Cells were centrifuged at 600 × g for 10 minutes at 4°C. Supernatant was removed and pellet was resuspended in 47.5 µL buffer TD (Illumina). 2.5 uL of Tagment DNA Enzyme (Illumina) was added and samples were incubated at 37°C for 30 minutes. Tagmented DNA was purified using MinElute Reaction Cleanup Kit (Qiagen) and eluted in 10 µL of buffer EB. DNA was PCR amplified for 12 cycles with the following conditions:72°C for 5 minutes, 98°C for 30 seconds, then 12 cycles of 98°C for 10 seconds, 63°C for 30 seconds and 72°C for 1 minute. Amplified libraries were purified using a 1.2X ratio of Axygen paramagnetic beads.