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| Description: Each of these turn types allows an abrupt change in polypeptide chain direction. In the type II turn, residue 3 is usually glycine, presumably because a bulky R group would clash with the carbonyl oxygen of residue 2. Picture Stats: Views: 290 Filesize: 129.27kB Height: 738 Width: 411 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34095 |