Hexoses
From Proteopedia
The objective of this article is to illustrate and visualize the structures and concepts of glucose (aldohexose[1]) and fructose (ketohexose[2])that are difficult to visualize and illustrate by viewing two dimensional structures.
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The figure to the left contains glucose drawn as a Fischer projection structure. When drawing the Fischer projection the most oxidized group, in this case the aldehyde group, is is drawn at the top, all horizontal bonds project to the front of the plane of the screen and all vertical bonds project behind the plane of the screen. As shown in the scene to the right if glucose is set in the Fischer projection conformation in Jmol carbon #6 (green) circles around to meet carbon #1 (orange).
