Sheared G.A
From Eterna Wiki
Sheared GA is a basepairing between a Guanine and an Adenine.
<img src="https://lh6.googleusercontent.com/Hl60zGs32_Rs8webv-JzEVqlJVkpHZhu1P_fd0hLn3Gm04aqf1QwKeEcn4B0ZCZ-21dviShA3VWdOE3hP_d6ED-rFI640SF89dSTTzMcN68KQBUmKbIKEMwL5v1unRfsESHx" alt="" width="576px;" height="429px;" />
Picture by Nando on how a sheared GA line up in postion to the backbone, compared to a GC-pair. Notice the bases position along the magenta lines. Also check out Nando's blog post on other "famous" non-canonical Base Pairs.
