Table 2.

Amino acids properties[15]

Amino acid	Polar	Hydropathy	Molecular
	Requirement (PR)	Index (HI)	Volume (MV)
Ala	7	1.8	31
Arg	9.1	-4.5	124
Asp	13	-3.5	54
Asn	10	-3.5	56
Cys	4.8	2.5	55
Glu	12.5	-3.5	83
Gin	8.6	-3.5	85
Gly	7.9	-0.4	3
His	8.4	-3.2	96
Ile	4.9	4.5	111
Leu	4.9	3.8	111
Lys	10.1	-3.9	119
Met	5.3	1.9	105
Phe	5	2.8	132
Pro	6.6	-1.6	32.5
Ser	7.5	-0.8	32
Thr	6.6	-0.7	61
Trp	5.2	-0.9	170
Tyr	5.4	-1.3	136
Val	5.6	4.2	84