Fig. 2: The overall structure of the pseudoknot-containing hammerhead ribozyme.
From: The structure and catalytic mechanism of a pseudoknot-containing hammerhead ribozyme
A Schematic of the secondary structure of the PK hammerhead ribozyme. Highly-conserved nucleotides are written in red. The coloring of the helices matches those in the images of the 3D structure. B Parallel-eye stereoscopic view of the 3D structure of the PK hammerhead ribozyme observed in the crystal structure. For clarity in viewing the overall structure, each nucleotide is depicted as a bar in this image. The coloring of the helices matches the schematic shown in (A). The −1 and +1 nucleotides flanking the scissile phosphate are colored cyan.
