6SJD:
reference: Binding specificities of human RNA-binding proteins toward structured and linear RNA sequences., Jolma A, Zhang J, Mondragon E, Morgunova E, Kivioja T, Laverty KU, Yin Y, Zhu F, Bourenkov G, Morris Q, Hughes TR, Maher LJ 3rd, Taipale J, Genome Res. 2020 Jul;30(7):962-973. doi: 10.1101/gr.258848.119. Epub 2020 Jul 23. PMID: 32703884

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