Backbone representations

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==Protein Backbone Trace==
==Protein Backbone Trace==
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<scene name='59/599354/Helix/5'>Backbone Trace</scene>: Now we'll draw a <font style="background:black;color:yellow;">&nbsp;yellow line&nbsp;</font> between alpha carbons (balls). This line is called a <font style="background:black;color:yellow;">&nbsp;backbone trace&nbsp;</font>.
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*<scene name='59/599354/Helix/6'>Hiding all atoms except alpha carbons</scene> makes the backbone trace even clearer.
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<scene name='59/599354/Helix/5'>backbone</scene>
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*Here is the <scene name='59/599354/Helix/7'>backbone trace by itself</scene>.
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<scene name='59/599354/Helix/6'>bb only with ca</scene>
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==Smoothed Protein Backbone Trace==
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<scene name='59/599354/Helix/7'>bb</scene>
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A <scene name='59/599354/Helix/8>smoothed backbone trace</scene> is another common backbone representation. Here, the <font style="background:black;color:#00ff00;">&nbsp;smoothed backbone trace is green&nbsp;</font>.
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<scene name='59/599354/Helix/8>bb + trace</scene>
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*Here is the <scene name='59/599354/Helix/9'>smoothed backbone trace alone</scene>.
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<scene name='59/599354/Helix/9'>treace</scene>
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==Ribbon Backbone Trace==
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<scene name='59/599354/Helix/10'>trace + cartoon</scene>
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Perhaps the most common backbone representation is the <scene name='59/599354/Helix/10'>ribbon</scene>. Here the <font style="color:#ff0080;">&nbsp;ribbon is violet&nbsp;</font>, the standard secondary structure color for alpha helices.
<scene name='59/599354/Helix/2'>cartoon only</scene>
<scene name='59/599354/Helix/2'>cartoon only</scene>

Revision as of 18:18, 19 September 2014

THIS ARTICLE IS UNDER DEVELOPMENT AND IS CURRENTLY INCOMPLETE. Eric Martz 20:18, 19 September 2014 (IDT)

Backbone representations are simplified 3D depictions of proteins or nucleic acids that enable the polymer chain structure to be seen. In proteins, a simple  backbone trace  connects alpha carbons (balls) but the  backbone trace line  does not coincide with any of the covalent bonds in the main chain ().

Drag the structure with the mouse to rotate

References

  1. Residues 23-37 from 1pgb.

Proteopedia Page Contributors and Editors (what is this?)

Eric Martz, Margaret Franzen

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