Table II.

Coverage of φ/ψ space by Gly- and Ala-based pentapeptide systems in control and denaturing conditions

Residue	Water 298		8 M urea		Water 498 K
	GGXGG (%)	AAXAA (%)	GGXGG (%)	AAXAA (%)	GGXGG (%)	AAXAA (%)
Ala	59 ± 1a	61a	61 ± 1a	63 ± 2a	62 ± 1a	62a
Arg	48	50	52	50	50	53
Asn	46	50	46	49	52	53
Asp	38	37	37	36	51	52
Ash	43	44	45	46	48	50
Cys	52	56	54	53	54	53
Gln	48	50	49	50	53	53
Glu	48	50	50	49	51	51
Glh	49	48	50	53	53	52
Gly	79	81	80a	81a	79	79
Hid	50	50	53	51	52	55
Hie	52	51	54	52	53	54
Hip	40	52	46	53	51	50
Ile	34	39	37	39	38	39
Leu	49	50	49	51	48	52
Lys	48	50	51	48	50	52
Met	50	51	53	49	51	53
Phe	49	51	48	49	51	50
Pro	16	13	16	15	19	18
Ser	53	51	53	55	55	54
Thr	38	39	35	36	41	42
Trp	50	50	50 ± 2a	53 ± 1a	52	53
Tyr	47	53	50	44	51	53
Val	37	38	34	40	41	40
Meanb	48 ± 7	49 ± 11	49 ± 7	52 ± 13	51 ± 6	52 ± 10

^aAverages across triplicate simulations; standard deviations omitted when they were <0.5%.

^bMean coverage is calculated excluding glycine and proline values.