title: GSM6797355: ATAC (TET2bed) Rv-1928z+41BBL, Day 90 -2; Homo sapiens; ATAC-seq
library_construction_protocol: 50,000 fresh T cells were washed in cold PBS and lysed. The transposition reaction containing TDE1 Tagment DNA Enzyme (Illumina catalogue # 20034198) was incubated at 37°C for 30 minutes. The DNA was cleaned with the MinElute PCR Purification Kit (QIAGEN catalogue # 28004) and material was amplified for 5 cycles using NEBNext High-Fidelity 2X PCR Master Mix (New England Biolabs catalogue # M0541L). After evaluation by real-time PCR, 8 additional PCR cycles were done. The final product was cleaned by aMPure XP beads (Beckman Coulter catalogue # A63882) at a 1X ratio, and size selection was performed at a 0.5X ratio. Libraries were sequenced on a HiSeq4000 in a PE50 run, using the HiSeq 3000/4000 SBS Kit (Illumina).  An average of 108 million paired reads were generated per sample.