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date: 07 August 2020

Z-DNA 

Source:
A Dictionary of Biomedicine
Author(s):

John Lackie

, Brian NationBrian Nation

A left-handed helical form of DNA adopted by sequences of alternating *purines and *pyrimidines which winds in a zigzag pattern (hence Z) and there is a single deep groove. It may only exist as a transient conformation for relief of supercoiling or to allow access of transcriptional complexes. ... ...

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