Tertiary Structure
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The tertiary structure of a nucleic acid is its precise 3-dimensional structure. RNA and DNA molecules are capable of diverse functions ranging from molecular recognition to catalysis. Such functions require a precise 3-dimensional arrangement. While such structures are diverse and seemingly complex, they are composed of recurring tertiary structure motifs that serve as molecular building blocks. Some of the most common motifs for RNA are:
- Multiplexes (triplex, quadruplex, and even more)
- Coaxial Stacking
- Tetraloop-receptor interactions
- A-minor motif
- Ribose zipper
