Hammerhead Ribozyme

Hammerhead Ribozyme.

"The hammerhead ribozyme is a RNA molecule motif that catalyzes reversible cleavage and joining reactions at a specific site within an RNA molecule. It serves as a model system for research on the structure and properties of RNA, and is used for targeted RNA cleavage experiments, some with proposed therapeutic applications."
--https://en.wikipedia.org/wiki/Hammerhead_ribozyme

This model is of the Hammerhead ribozyme (1hmh-A_fixed.stl; blue in the figures) in complex with a DNA substrate analogue (1hmh-B_fixed.stl; red in the figures)

Model of based on the Protein Data Bank entry 1HMH:
http://www.rcsb.org/pdb/explore/explore.do?structureId=1hmh

STL file created using VMD:
http://www.ks.uiuc.edu/Research/vmd/