lowest e-value for a high complexity de novo motif
Metadata from Sequence Read Archive
Cells were cross-linked by 1% formaldehyde, and DNA was sonicated to 200- 400 bp fragments. Antibodies (5 µg) were added and collected using protein G Sepharose (GE). Cross-links were reversed and proteins digested by incubation with proteinase K at 65 °C overnight. DNA was then purified using Qiagen PCR purification kit. Libraries were constructed according to Illuminas standard protocol. The concentration of the library was determined by Nanodrop spectrophotometer (Thermo Fisher Scientific Inc.) and 10 pmol of the DNA was applied for one flow-cell lane. Sequencing was performed using one lane of Illumina GAIIx, or alternatively, samples were indexed with DNA barcodes and four to six different samples were multiplexed in one library and sequenced using Illumina HiSeq 2000 (single 36 bp reads).