enDNA-Prot: Identification of DNA-Binding Proteins by Applying Ensemble Learning

Table 2

The three groups of amino acids for each physicochemical property.

Physicochemical property	The 1st group	The 2nd group	The 3rd group
Hydrophobicity	RKEDQN	GASTPHT	CVLIMFW
Normalized van der Waals volume	GASCTPD	NVEQIL	MHKFRYW
Polarity	LIFWCMVY	PATGS	HQRKNED
Polarizability	GASDT	CPNVEQIL	KMHFRYW
Charge	KR	ANCQGHILMFPSTWYV	DE
Surface tension	GQDNAHR	KTSEC	ILMFPWYV
Secondary structure	EALMQKRH	VIYCWFT	GNPSD
Solvent accessibility	ALFCGIVW	RKQEND	MPSTHY