Fig. 2From: antaRNA – Multi-objective inverse folding of pseudoknot RNA using ant-colony optimizationPseudoknot Types a regular simple hairpin pseudoknot (H), b bulge hairpin pseudoknot (B), c complex hairpin pseudoknot (cH), d kissing hairpin pseudoknot (K). The complexity order is H <B<cH<K. Technically B-type and cH-type are more complex forms of H-type pseudoknotsBack to article page