Alpha helix: Difference between revisions

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Karsten Theis (talk | contribs)
Karsten Theis (talk | contribs)
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</jmol> to a [[spacefilling representation]], you can see how tightly packed the main chain is (no space in the middle). [The previous scenes were inspired by a [https://www.ncbi.nlm.nih.gov/books/NBK22580/figure/A322/?report=objectonly beautiful set of figures] in Stryer's biochemistry textbook.]  
</jmol> to a [[spacefilling representation]], you can see how tightly packed the main chain is (no space in the middle). [The previous scenes were inspired by a [https://www.ncbi.nlm.nih.gov/books/NBK22580/figure/A322/?report=objectonly beautiful set of figures] in Stryer's biochemistry textbook.]  


Apart from the characteristic hydrogen bonding patters, the other identifying feature of alpha helices are the main chain torsion angles <jmol>
Apart from the characteristic hydrogen bonding patterns, the other identifying feature of alpha helices are the main chain torsion angles <jmol>
<jmolLink>
<jmolLink>
<script>  select 9-12:A; draw rama; restrict selected; restrict backbone; hbonds off
<script>  select 9-12:A; draw rama; restrict selected; restrict backbone; hbonds off