Puzzle 3
Sequence (5' to 3'): CUCUGGAGAGAACCGUUUAAUCGGUCGCCGAAGGAGCAAGCUCUGCGCAUAUGC AGAGUGAAACUCUCAGGCAAAAGGACAGAG
Puzzle: The crystallized sequence was slightly different (an apical loop was replaced by a GAAA loop) but it was not mentioned to protect the crystallographers.
Crystal structure kindly provided by: Dinshaw Patel
Reference: Huang L, Serganov A, Patel DJ. 2010. Structural Insights into Ligand Recognition by a Sensing Domain of the Cooperative Glycine Riboswitch. Mol. Cell. 40, 774-786.
PDB id: 3owz