Table 3. Relative Populations of Different Regions (α_R, β and α_L) in the (ϕ/ψ) Distribution for Amino Acids Obtained from the Experimental Protein Structures (Dunbrack Library) and GBEMP Simulations of Dipeptides.

	αR		β		αL
amino acid	experiment	GBEMP	experiment	GBEMP	experiment	GBEMP
Ala	0.463	0.464	0.450	0.447	0.040	0.033
Arg	0.568	0.654	0.389	0.271	0.022	0.049
Asn	0.471	0.587	0.362	0.269	0.097	0.101
Asp	0.522	0.651	0.366	0.296	0.044	0.034
Cys	0.601	0.577	0.356	0.412	0.026	0.000
Gln	0.601	0.588	0.356	0.325	0.026	0.050
Glu	0.644	0.639	0.324	0.326	0.018	0.022
His	0.476	0.617	0.454	0.382	0.033	0.000
Ile	0.429	0.380	0.564	0.619	0.001	0.000
Leu	0.567	0.570	0.413	0.388	0.007	0.014
Lys	0.581	0.589	0.373	0.410	0.029	0.000
Met	0.560	0.715	0.408	0.284	0.013	0.000
Phe	0.450	0.475	0.512	0.478	0.015	0.046
Ser	0.468	0.462	0.484	0.503	0.016	0.000
Thr	0.455	0.485	0.512	0.501	0.003	0.010
Trp	0.489	0.589	0.475	0.368	0.012	0.004
Tyr	0.452	0.563	0.506	0.432	0.016	0.000
Val	0.378	0.355	0.614	0.618	0.001	0.013