CryoProtect: A Web Server for Classifying Antifreeze Proteins from Nonantifreeze Proteins

Table 2

Propensity score of 20 amino acids, composition difference, and summary of statistical analysis of AFPs and non-AFPs. The rank of propensity score and Gini index are shown in parenthesis.

Amino acid	Propensity score		Gini index		AFP (%)	Non-AFP (%)	Difference (%)	p value
Cys	1000		47.16		3.6	1.5	2.1	>0.05
Ala	944		18.88		9.5	8.2	1.3	>0.05
Ser	890		10.93		8.4	6.9	1.5	>0.05
Thr	867		15.49		6.6	5.3	1.3	>0.05
Gly	858		12.93		7.4	6.4	1.0	>0.05
Trp	777		30.40		2.5	1.3	1.2	>0.05
Gln	615		10.18		4.4	4.0	0.4	0.081
Asn	572		8.31		4.8	4.3	0.5	>0.05
Pro	560		9.14		4.5	4.7	−0.2	>0.05
His	559		5.52		2.4	2.2	0.2	0.066
Asp	502		7.68		4.9	5.4	−0.5	0.090
Tyr	471		11.69		2.9	3.3	−0.3	>0.05
Glu	433		12.48		5.7	6.7	−1.0	>0.05
Phe	407		9.52		3.6	4.1	−0.5	0.233
Met	404		13.48		2.2	2.5	−0.4	>0.05
Val	379		9.94		5.6	6.5	−0.9	>0.05
Arg	249		21.41		4.5	5.7	−1.2	>0.05
Ile	191		16.36		4.1	5.6	−1.5	>0.05
Lys	159		9.60		5.1	6.0	−0.8	>0.05
Leu	0		18.54		7.5	9.5	−2.0	>0.05