6FQL:
reference: Evolutionary plasticity of the NHL domain underlies distinct solutions to RNA recognition., Kumari P, Aeschimann F, Gaidatzis D, Keusch JJ, Ghosh P, Neagu A, Pachulska-Wieczorek K, Bujnicki JM, Gut H, Grosshans H, Ciosk R, Nat Commun. 2018 Apr 19;9(1):1549. doi: 10.1038/s41467-018-03920-7. PMID: 29674686

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