Extended Data Fig. 7: Excerpts of exemplary SAM riboswitch structures.
From: Structure and catalytic activity of the SAM-utilizing ribozyme SAMURI
a, b. Characteristic interactions involving the adenosine unit in SAM riboswitches displaying H-bond networks (a) and stacking interactions (b). Pymol figures were prepared from the models of T. tengcogensis SAM I riboswitch (PDB: 2GIS), metX SAM II riboswitch (PDB: 2QWY), E. faecalis SAM III riboswitch (PDB: 3E5C) and the SAM-SAH riboswitch (PDB: 6YL5).
