Fischer projection
From Proteopedia
(New page: The Fischer projection is a two-dimensional representation of a linear monosaccharide showing the stereochemistry. 500px <Struc...) |
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| - | The Fischer projection is a two-dimensional representation of a linear monosaccharide showing the stereochemistry. | + | The Fischer projection is a two-dimensional representation of a linear monosaccharide showing the stereochemistry. The figure below shows - from left to right - (a) a wedge-and-dashes representation of glucose in a relaxed conformation, (b) glucose in a conformation where the carbon chain is in an all-syn conformation, (c) with the carbon chain on the vertical axis and (d) the Fischer projection. This insightful series of images is from https://commons.wikimedia.org/wiki/File:Fischer_projection_-_projection_of_D-glucose.png |
| - | [[Image:Fischer projection - projection of D-glucose.png|500px]] | ||
| - | <Structure load='' size='350' frame='true' align='right' caption='Insert caption here' scene=' | + | [[Image:Fischer projection - projection of D-glucose.png|800px]] |
| + | |||
| + | |||
| + | <Structure load='' size='350' frame='true' align='right' caption='Insert caption here' scene='85/856021/Overall/1' /> | ||
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| + | The 3D image shows glucose in the all-syn conformation. You can rationalize the Fischer projection by centering on each carbon atom, keeping carbon 1 (the aldehyde function) on top and the carbon chain curved backwards. | ||
| + | The coordinates of glucose are from https://sites.science.oregonstate.edu/~gablek/CH334/Chapter5/fischer.htm. | ||
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| + | <jmol> | ||
| + | <jmolLink> | ||
| + | <script> set zshade on; set zshadepower 2; moveto 1.0 { 511 -545 664 171.11} 133.56 0.0 0.0 {-0.43 -1.4969999999999999 -0.31} 4.711404157531831 {0 0 0} 0 0 0 3.0 0.0 0.0; | ||
| + | </script> | ||
| + | <text>carbon 1 (not chiral)</text> | ||
| + | </jmolLink> | ||
| + | </jmol> | ||
| + | |||
| + | <jmol> | ||
| + | <jmolLink> | ||
| + | <script> moveto 1.0 { 421 -394 817 166.63} 133.56 0.0 0.0 {0.395 -1.242 0.9540000000000001} 4.711404157531831 {0 0 0} 0 0 0 3.0 0.0 0.0; | ||
| + | </script> | ||
| + | <text>carbon 2</text> | ||
| + | </jmolLink> | ||
| + | </jmol> | ||
| + | |||
| + | <jmol> | ||
| + | <jmolLink> | ||
| + | <script> moveto 1.0 { -1 -48 999 165.59} 133.56 0.0 0.0 {0 0 1.749} 4.711404157531831 {0 0 0} 0 0 0 3.0 0.0 0.0; | ||
| + | </script> | ||
| + | <text>carbon 3</text> | ||
| + | </jmolLink> | ||
| + | </jmol> | ||
| + | |||
| + | <jmol> | ||
| + | <jmolLink> | ||
| + | <script> moveto 1.0 { -421 403 813 166.5} 133.56 0.0 0.0 {-0.395 1.242 0.9540000000000001} 4.711404157531831 {0 0 0} 0 0 0 3.0 0.0 0.0; | ||
| + | </script> | ||
| + | <text>carbon 4</text> | ||
| + | </jmolLink> | ||
| + | </jmol> | ||
| + | |||
| + | <jmol> | ||
| + | <jmolLink> | ||
| + | <script> moveto 1.0 { -236 -719 -654 132.38} 133.56 0.0 0.0 {0.427 1.496 -0.305} 4.711404157531831 {0 0 0} 0 0 0 3.0 0.0 0.0; | ||
| + | </script> | ||
| + | <text>carbon 5</text> | ||
| + | </jmolLink> | ||
| + | </jmol> | ||
| + | |||
| + | <jmol> | ||
| + | <jmolLink> | ||
| + | <script> moveto 1.0 { -245 -922 300 163.36} 133.56 0.0 0.0 {-0.115 0.754 -1.525} 4.711404157531831 {0 0 0} 0 0 0 3.0 0.0 0.0; | ||
| + | </script> | ||
| + | <text>carbon 6 (not chiral)</text> | ||
| + | </jmolLink> | ||
| + | </jmol> | ||
Current revision
The Fischer projection is a two-dimensional representation of a linear monosaccharide showing the stereochemistry. The figure below shows - from left to right - (a) a wedge-and-dashes representation of glucose in a relaxed conformation, (b) glucose in a conformation where the carbon chain is in an all-syn conformation, (c) with the carbon chain on the vertical axis and (d) the Fischer projection. This insightful series of images is from https://commons.wikimedia.org/wiki/File:Fischer_projection_-_projection_of_D-glucose.png
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The 3D image shows glucose in the all-syn conformation. You can rationalize the Fischer projection by centering on each carbon atom, keeping carbon 1 (the aldehyde function) on top and the carbon chain curved backwards. The coordinates of glucose are from https://sites.science.oregonstate.edu/~gablek/CH334/Chapter5/fischer.htm.
