library_construction_protocol: 5mm skin punch biopsies were stored in PaxGene tissue containers (PreAnalytiX) at -80°C until isolation of total RNA with the Qiagen AllPrep DNA/RNA Mini Kit preceded by an additional disruption/homogenization step with innuSPEED Lysis Tubes W (Analytik Jena) and Qiagen QIAshredder spin-columns. RNA samples were prepared for sequencing using the Illumina Truseq® Stranded total RNA Protocol in combination with the RiboZero rRNA removal Kit and sequenced on the HiSeq2500 with 2x125bp.