Table 1.

Chou and Fasman’ conformation parameters of the 20 amino acids.

Helical Residues	Pα	β-Sheet residues	Pβ
Glu(−)	1.53	Met	1.67
Ala	1.45	Val	1.65
Leu	1.34	Ile	1.60
His(+)	1.24	Cys	1.30
Met	1.20	Tyr	1.29
Gln	1.17	Phe	1.28
Trp	1.14	Gln	1.23
Val	1.14	Leu	1.22
Phe	1.12	Thr	1.20
Lys(+)	1.07	Trp	1.19
Ile	1.00	Ala	0.97
Asp(−)	0.98	Arg(+)	0.90
Thr	0.82	Gly	0.81
Ser	0.79	Asp(−)	0.80
Arg	0.79	Lys(+)	0.74
Cys	0.77	Ser	0.72
Asn	0.73	His(+)	0.71
Tyr	0.61	Asn	0.65
Pro	0.59	Pro	0.62
Gly	0.53	Glu(−)	0.26