A method for predicting type I and II β-turns using nuclear magnetic resonance (NMR) chemical shifts is proposed. Isolated β-turn chemical-shift data were collected from 1,798 protein chains. One-dimensional statistical analyses on chemical-shift data of three classes β-turn (type I, II, and VIII) showed different distributions at four positions, (i) to (iÂ*+Â*3). Considering the central two residues of type I β-turns, the mean values of Cο, Cα, HN, and NH chemical shifts were generally (iÂ*+Â*1)Â*>Â*(iÂ*+Â*2). The mean values of Cβ and Hα chemical shifts were (iÂ*+Â*1)Â*
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Type I and II β-turns prediction using NMR chemical shifts
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