TABLE 2.

Energetically favorable pairs (<−0.2 kcal/mol) within topmost 50 preferred pairs

S. no.	Pair	Pair preference a	Energy (kcal/mol)	S. no.	Pair	Pair preference a	Energy (kcal/mol)
1	YY	11.69	−0.32	24	KD	2.30	−0.23
2	FY	5.84	−0.38	25	RY	2.28	−0.43
3	YI	5.75	−0.21	26	FD	2.20	−0.26
4	YN	5.60	−0.25	27	NG	2.19	−0.43
5	KY	4.70	−0.39	28	EY	1.91	−0.38
6	YR	4.61	−0.35	29	KS	1.81	−0.38
7	GY	4.03	−0.28	30	YL	1.80	−0.39
8	EH	3.91	−0.42	31	FF	1.78	−0.25
9	YG	3.73	−0.24	32	NF	1.77	−0.34
10	YS	3.72	−0.40	33	LY	1.65	−0.42
11	YF	3.60	−0.36	34	YD	1.65	−0.37
12	FR	3.42	−0.44	35	EW	1.60	−0.23
13	YW	3.30	−0.37	36	QN	1.54	−0.56
14	AN	3.28	−0.49	37	AF	1.49	−0.22
15	FM	2.67	−0.42	38	FW	1.47	−0.22
16	QW	2.54	−0.21	39	EN	1.46	−0.30
17	RN	2.54	−0.64	40	GG	1.42	−0.31
18	NR	2.42	−0.30	41	YT	1.38	−0.35
19	YM	2.40	−0.39	42	LM	1.35	−0.30
20	DY	2.40	−0.26	43	GF	1.33	−0.32
21	QY	2.39	−0.37	44	QS	1.32	−0.40
22	ER	2.33	−0.43	45	TF	1.26	−0.27
23	QM	2.32	−0.36	46	RS	1.25	−0.28

^a The pair preference values are multiplied by 10³.