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. 2009 Nov 5;78(5):1311–1325. doi: 10.1002/prot.22651

Figure 2.

Figure 2

α-Carbon 4-mer and pseudohydrogen bond geometry. (a) 4-mer letter angles and distance bins. (b) Pseudohydrogen bonding where τhb is the dihedral angle defined by Cαi − N′i − N′j − Cαj. O′ is defined to be 1 Å from N′ in the direction (Cαi+1 − Cαi) × (Cαi+2 − Cαi+1).