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| Description: These models show two of the possible ring conformations for b-D-ribofuranose. In both of them, C-1, O, and C-4 define a plane. In the C-2 endo conformation (a), C-2 is above the plane. In the C-3 endo conformation (b), C-3 is above the plane. These isomers are the two most common conformations for ribose and deoxyribose in nucleic acids. A C-3 exo conformation would look like the figure in (b), but C-3 would be flipped below the plane Picture Stats: Views: 248 Filesize: 113.77kB Height: 658 Width: 370 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34271 |