Alpha helix: Difference between revisions
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==Structure and hydrogen bonding== | ==Structure and hydrogen bonding== | ||
<StructureSection load='3nir' size='400' side='right' caption='alpha helix' scene=''> | <StructureSection load='3nir' size='400' side='right' caption='alpha helix' scene=''> | ||
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In an alpha helix, the main chain arranges in a <scene name='77/778341/Ribbon/1'>right-handed helix</scene> with the side chains (green) pointing away from the helical axis. The alpha helix is stabilized by <scene name='77/778341/Hbonds/2'>hydrogen bonds</scene> from amino acid n to n+4. There are <scene name='77/778341/Wheel/1'>3.6 residues per turn</scene>. If you <jmol> | In an alpha helix, the main chain arranges in a <scene name='77/778341/Ribbon/1'>right-handed helix</scene> with the side chains (green) pointing away from the helical axis. The alpha helix is stabilized by <scene name='77/778341/Hbonds/2'>hydrogen bonds</scene> from amino acid n to n+4. There are <scene name='77/778341/Wheel/1'>3.6 residues per turn</scene>. If you <jmol> | ||
<jmolLink> | <jmolLink> | ||
<script> select visible; | <script> select visible; spacefill 50%; delay 0.4; spacefill 100% | ||
</script> | </script> | ||
<text>increase the sphere radii</text> | <text>increase the sphere radii</text> | ||