Table 1.

Number of over-exposed residues with their exposed surface area (ASA) greater than the Ala-X-Ala extended state ASA (ESA).

Res.	Freq (%)	Res.	Freq (%)	Res.	Freq (%)	Res.	Freq (%)
A	0.66	G	2.35	M	0.36	S	1.91
C	0.10	H	0.62	N	3.31	T	0.94
D	3.45	I	0.05	P	0.45	V	0.15
E	2.54	K	0.76	Q	1.22	W	0.11
F	0.15	L	0.09	R	0.88	Y	0.20

Typically, polar and charged residues have a significant number of such cases.