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. Author manuscript; available in PMC: 2009 Dec 8.
Published in final edited form as: J Chem Theory Comput. 2008 Aug 1;4(8):1386–1400. doi: 10.1021/ct800063d

Figure 1.

Figure 1

The UNRES model of the polypeptide chain. Dark circles represent united peptide groups (p) and open circles represent the Cα atoms. Ellipsoids represent side chains, with their centers of mass at the SCs. The ps are located halfway between two consecutive Cα atoms. The virtual-bond angles, θ, the virtual-bond dihedral angles, γ, and the angles, αSC and βSC, that define the location of a side chain with respect to the backbone, are also indicated.