Amino Acids Properties

Amino Acid Abbrev Side Chain Hydro-
phobic
pKa Polar pH Small Tiny Aromatic or Aliphatic van der Walls Volume
AlanineAAlaCH3X---XX-67
CysteineCCys-CH2SHX8.18-acidicX--86
Aspartic acidDAsp-CH2COOH-3.9XacidicX--91
Glutamic acidEGlu-CH2CH2COOH-4.07Xacidic---109
PhenylalanineFPhe-CH2C6H5X-----Aromatic135
GlycineGGly-HX---XX-48
HistidineHHis-CH2-C3H3N2-6.04Xweak basic--Aromatic118
IsoleucineIIle-CH(CH3)CH2CH3X-----Aliphatic124
LysineKLys-(CH2)4NH2-10.54Xbasic---135
LeucineLLeu-CH2CH(CH3)2X-----Aliphatic124
MethionineMMet-CH2CH2SCH3X------124
AsparagineNAsn-CH2CONH2--X-X--96
PyrrolysineOPyl
ProlinePPro-CH2CH2CH2-X---X--90
GlutamineQGln-CH2CH2CONH2--X----114
ArginineRArg-(CH2)3NH-C(NH)NH2-12.48Xstrongly basic---148
SerineSSer-CH2OH--X-XX-73
ThreonineTThr-CH(OH)CH3--Xweak acidicX--93
SelenocysteineUSec-CH2SeHX5.73--X--
ValineVVal-CH(CH3)2X---X-Aliphatic105
TryptophanWTrp-CH2C8H6NX-----Aromatic163
TyrosineYTyr-CH2-C6H4OH-10.46X---Aromatic141