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. Author manuscript; available in PMC: 2010 Feb 16.
Published in final edited form as: Polymer (Guildf). 2005 Nov 28;46(25):11904. doi: 10.1016/j.polymer.2005.09.012

Fig. 3.

Fig. 3

Schematic diagram of a polypeptide chain. The torsion angle of the C–N bond is nearly fixed as 180°. In numerical examples, βω and βω1 are assumed 63.8° and 58.3°, respectively.