G-quadruplex

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In molecular biology, G-quadruplex secondary structures (G4) are formed in nucleic acids by sequences that are rich in guanine. They are helical in shape and contain guanine tetrads that can form from one, two or four strands.

Excerpt from the Wikipedia article “G-quadruplex”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Harold f at English Wikipedia, Public domain, via Wikimedia Commons.