Dihedral/Dihedral angles in proteins

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{{Theoretical_model}}
{{Theoretical_model}}
==Dihedral angles in proteins: Phi and Psi==
==Dihedral angles in proteins: Phi and Psi==
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<!-- StructureSection load='1iy4_34-36.pdb' size='400' side='right' caption='a tripeptide' scene='61/611457/Initial_display/1'>
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<table>
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The model on the right is a tripeptide (Trp<sub>34</sub>&ndash;Glu<sub>35</sub>&ndash;Ser<sub>36</sub> within the protein lysozyme).
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<td>
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The model displayed on the right is a tripeptide (Trp<sub>34</sub>&ndash;Glu<sub>35</sub>&ndash;Ser<sub>36</sub> within the protein lysozyme).
This page illustrates the meaning of phi (&#x03D5;) and psi (&#x03C8;) angles, both around the alpha carbon of the central residue (Glu<sub>35</sub>).
This page illustrates the meaning of phi (&#x03D5;) and psi (&#x03C8;) angles, both around the alpha carbon of the central residue (Glu<sub>35</sub>).
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Bright magenta cylinders are displayed where neighbour atoms collide (hence there is an unfavourable conformation for those ϕ, ψ values).
Bright magenta cylinders are displayed where neighbour atoms collide (hence there is an unfavourable conformation for those ϕ, ψ values).
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The scene does not work well:
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Animation of rotation:
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<scene name='61/611457/Phi_rotation/2'>Animate changes in the phi angle</scene>.
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<jmol>
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<jmolButton>
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<script>anim play;
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</script>
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<text>animate/resume</text>
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</jmolButton>
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</jmol>
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<jmol>
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<jmolButton>
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<script>anim pause;
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</script>
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<text>pause</text>
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</jmolButton>
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</jmol>
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</StructureSection -->
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Let's try with a tag:
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<jmolApplet>
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<color>white</color>
<color>white</color>
<uploadedFileContents>1iy4_34-36.pdb</uploadedFileContents>
<uploadedFileContents>1iy4_34-36.pdb</uploadedFileContents>
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<pspeed>2</pspeed>
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<pspeed>8</pspeed>
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</jmolApplet>
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<script>script /wiki/images/c/ce/Phi-rot_uni.spt;
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<jmol>
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<jmolButton>
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<script>script wiki/images/c/ce/Phi-rot_uni.spt;
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<text>animation of rotation</text>
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</jmolApplet>
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</jmolButton>
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</jmol>
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</td>
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</table>

Revision as of 16:41, 14 July 2016

Theoretical Model: The protein structure described on this page was determined theoretically, and hence should be interpreted with caution.

Dihedral angles in proteins: Phi and Psi

The model displayed on the right is a tripeptide (Trp34–Glu35–Ser36 within the protein lysozyme). This page illustrates the meaning of phi (ϕ) and psi (ψ) angles, both around the alpha carbon of the central residue (Glu35).

You can run animations that continuously rotate the model changing one of the angles, or use the slider or controls to manually progress through different values of the angles. Bright magenta cylinders are displayed where neighbour atoms collide (hence there is an unfavourable conformation for those ϕ, ψ values).

Animation of rotation:

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

Angel Herraez

Retrieved from "http://52.214.119.220/wiki/index.php/Dihedral/Dihedral_angles_in_proteins"
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