Table 2.

Summary of 13 different sequence-based feature descriptors along with their corresponding description and dimension.

Order	Descriptors	Description	Dimension	References
1	AAC	Frequency of 20 amino acids	20	46,47
2	AAI	Different biochemical and biophysical properties extracted from the AAindex database	11	46,48
3	APAAC	Amphiphilic pseudo-amino acid composition	22	49
4	CTDC	Percentage of particular amino acid property groups	39	46,50,51
5	CTDD	Percentage of mutual conversion in amino acid properties	39	46,50,51
6	CTDT	Distribution of amino acid properties in sequences	195	46,50,51
7	DDE	Dipeptide deviation from expected mean	400	52
8	DPC	Frequency of 400 dipeptides	400	47,53,54
9	EAAC	Enhance amino acid composition	20	52
10	PAAC	Pseudo amino acid composition	21	49
11	PSSM_AAC	Traditional AAC from the primary sequence to the PSI-BLAST profile	20	55
12	PSSM_DP	Traditional PDC from the primary sequence to the PSI-BLAST profile	400	55
13	PSSM_COM	Position-specific scoring matrix composition	400	55