title: GSM8656978: LPS input; Mus musculus; ChIP-Seq
library_construction_protocol: Add final concentration of 1% Formaldehyde solution for Cross-Linking of DNA and Protein. Then stoped the cross-linking reaction by adding final concentration of 125mM glycine. Extract chromatin from cross-linked cells by adding Lysis Buffer The sequencing libraries of immunoprecipitated chromatin DNA were generated with varied index label by NEBNext® UltraTM DNA Library Prep Kit for Illumina (NEB, USA, cat. E7645L). Add End Repair Reaction Buffer (10X) and End Prep Enzyme Mix for end repair by the following condition: 20°C for 30min, 65°C for 30min.  And then NEBNext Adaptor and Blunt/TA Ligase Master Mix was added to ligate adaptor at 20°C for 15min. USER Enzyme was added to remove base U of adaptor at 37°C for 5min. After purification with beads, products are amplified with PCR by the following conditions: initial denaturation at 98℃ for 10 sec; denaturation at 98℃ for 10 sec, annealing at 65℃ for 30 sec, and extension at 72℃ for 30 sec. The library size was selected and then purified with AMPure XP Beads.