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. 2013 Feb 27;8(2):e57225. doi: 10.1371/journal.pone.0057225

Table 1. Amino acid classifications.

Method Number Amino acid classification Reference
HP 2 (ALIMFPWV) (DENCQGSTYRHK) [48]
DHP 4 (ALVIFWMP) (STYCNGQ) (KRH) (DE) [49]
7-Cat 7 (AGV) (ILFP) (YMTS) (HNQW) (RK) (DE) C [50]
20-Cat 20 A G V I L F P Y M T S H N Q W R K D E C -
ms 6 (AVLIMC) (WYHF) (TQSN) (RK) (ED) (GP) [51]
lesk 6 (AST) (CVILWYMPF) (HQN) (RK) (ED) G [51]
F-Ic4 7 (AWM) (GST) (HPY) (CVIFL) (DNQ) (ER) K [51]
F-Ic2 9 (AWM) (GS) (HPY) (CVI) (FL) (DNQ) (ER) K T [51]
F-IIIc4 9 (ACV) (HPL) (DQ) S (ERGN) F (IMT) (KW) Y [51]
F-Vc4 8 (AWHC) G (LEPV) (KYMT) (IN) Q D S [51]
Murphy8 8 (LVMIC) (AG) (ST) P (FYW) (DENQ) (KR) H [52]
Murphy15 15 (LVIM) C A G S T P (FY) W E D N Q (KR) H [52]
Letter12 12 (LVIM) C (AG) (ST) P (FY) W (ED) N Q (KR) H [53]
Hydrophobicity 3 (RKEDQN) (GASTPHY) (CLVIMFW) [36]
Normalized van der Waals 3 (GASTPD) (NVEQIL) (MHKFRYW) [36]
Polarity 3 (LIFWCMVY) (PATGS) (HQRKNED) [36]
Polarizability 3 (GASDT) (CPNVEQIL) (KMHFRYW) [36]
Charge 3 (KR) (ANCQGHILMFPSTWYV) (DE) [36]
Secondary structure 3 (EALMQKRH) (VIYCWFT) (GNPSD) [36]
Solvent accessibility 3 (ALFCGIVW) (PKQEND) (MPSTHY) [36]