Puzzle 9
Sequence (5' to 3'):
GGACACUGAUGAUCGCGUGGAUAUGGCACGCAUUGAAUUGU
UGGACACCGUAAAUGUCCUAACACGUGUCC
Puzzle: 5-hydroxytryptophan aptamer
Crystal structure kindly provided by: Robert T. Batey
Reference: Ely B Porter, Jacob T Polaski, Makenna M Morck & Robert T Batey. Recurrent RNA motifs as scaffolds for genetically encodable small-molecule biosensors. Nature Chemical Biology volume 13, pages 295–301 (2017)
PDB id: 5kpy