Backbone representations
From Proteopedia
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| - | + | Backbone representations are simplified 3D depictions of proteins or nucleic acids that enable the polymer chain structure to be seen. | |
| - | == | + | <StructureSection load='' size='400' side='right' caption='' scene='59/599354/Helix/1'> |
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| - | <scene name='59/599354/Helix/2'> | + | ==Protein Main Chain== |
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| + | Here is a small alpha helix (15 amino acids)<ref>Residues 23-37 from [[1pgb]].</ref> In the <scene name='59/599354/Helix/1'>initial scene</scene>, all atoms are shown. | ||
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| + | *First, we'll simplify by <scene name='59/599354/Helix/2'>hiding the hydrogen atoms</scene>. [[Hydrogen]] atoms make up almost exactly 50% of the atoms in proteins. | ||
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| + | *Next, we'll simplify by <scene name='59/599354/Helix/3'>hiding the amino acid side chains</scene>. What remains is called the main chain. Each amino acid's main chain atoms are N-C-C, where the first C is the alpha carbon, and the second, the carboxyl carbon with its double-bonded oxygen (double bonds not shown). We could also <scene name='59/599354/Helix/4'>hide the oxygen atoms</scene>, leaving only the atoms that are part of the '''main chain''', also called the backbone. | ||
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| + | ==Protein Backbone Trace== | ||
| - | <scene name='59/599354/Helix/3'>no sides</scene> | ||
| - | <scene name='59/599354/Helix/4'>no o</scene> | ||
<scene name='59/599354/Helix/5'>backbone</scene> | <scene name='59/599354/Helix/5'>backbone</scene> | ||
Revision as of 17:09, 19 September 2014
Backbone representations are simplified 3D depictions of proteins or nucleic acids that enable the polymer chain structure to be seen.
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