Residue volume

http://prowl.rockefeller.edu/aainfo/volume.htm

	Residue Volume	Surface Area	Side Chain pKa
A	88.6	115	-
R	173.4	225	~12
D	111.1	150	4.5
N	114.1	160	-
C	108.5	135	9.1-9.5
E	138.4	190	4.6
Q	143.8	180	-
G	60.1	75	-
H	153.2	195	6.2
I	166.7	175	-
L	166.7	170	-
K	168.6	200	10.4
M	162.9	185	-
F	189.9	210	-
P	112.7	145	-
S	89.0	115	-
T	116.1	140	-
W	227.8	255	-
Y	193.6	230	9.7
V	140.0	155

 a-amino pKa = 6.8 - 7.9, a-carboxyl pKa = 3.5 - 4.3



References
Volume:
A.A. Zamyatin, Protein Volume in Solution, Prog. Biophys. Mol. Biol. 24(1972)107-123.
Accessible surface area
(calculated for the residue X in the tripeptide G-X-G)
C. Chotia, The Nature of the Accessible and Buried Surfaces in Proteins, J. Mol. Biol., 105(1975)1-14.
pKa:
C. Tandford, Adv. Protein Chem. 17(1962)69-165.