The Single-Letter Amino Acid Code

GGlycineGly PProlinePro
AAlanineAla VValineVal
LLeucineLeu IIsoleucineIle
MMethionineMet CCysteineCys
FPhenylalaninePhe YTyrosineTyr
WTryptophanTrp HHistidineHis
KLysineLys RArginineArg
QGlutamineGln NAsparagineAsn
EGlutamic AcidGlu DAspartic AcidAsp
SSerineSer TThreonineThr

The structures of the amino acids is shown overleaf.