User:Karsten Theis/turns
From Proteopedia
(Difference between revisions)
| Line 166: | Line 166: | ||
<script> | <script> | ||
define current selected; | define current selected; | ||
| - | select 68.CA or 68.C or 69.N or 69.H or 69.CA; | + | select 68.C or 68.O or 69.N or 69.H; |
| + | spacefill 30%; | ||
| + | select 68.CA or 68.C or 68.O or 69.N or 69.H or 69.CA; | ||
selectionHalos on; | selectionHalos on; | ||
| - | delay 0. | + | delay 0.8; |
selectionHalos off; | selectionHalos off; | ||
| + | select 68.C or 68.O or 69.N or 69.H; | ||
| + | spacefill off; | ||
| + | select selected and | ||
select current; | select current; | ||
</script> | </script> | ||
Revision as of 21:34, 7 February 2025
A beta turn is a secondary structure element consisting of four consecutive amino acids (or three peptide planes). The geometry of turns correspond to a change in the direction of the polypeptide backbone, allowing them to connect alpha helices and beta strands at the surface of a globular protein. Of the six main chain hydrogen bonding partners of a turn, a maximum of two are engaged in hydrogen bonding, and turns are rarely found in the hydrophobic core.
Exploring turns
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