Z-RNA

Meanings

1. A configuration of RNA, left-hand twisting double helix, that takes up a zigzagging form due to the natural right-hand twisting tendency of double-stranded RNA.
2. An RNA helix in such a configuration.

Etymology

From Z + RNA. Blend of Z-DNA + RNA. From zigzagging of the zigzag configuration RNA, an RNA analogue of the previously discovered Z-DNA.