GBM cells derived from a patinet were UV-irradiated and subjected to CLIP with  anti-NOVA1 antibody (ab183024 from Abcam) and anti-AGO antibody (2A8: from Dr. Zissimos Mourelatos) and RNAseq (shControl vs shNOVA1KD1 & 2). CLIP: Partial RNase A digestion, linker ligation, reverse transcription, criculation and PCR amplificiation. RNAseq: Illumina High-throughput TruSeq RNA Sample preparation: ribozero or poly(A) selection.