amino-acid,letter
Ala,A
Arg,R
Asn,N
Asp,D
Cys,C
Gln,Q
Glu,E
Gly,G
His,H
Ile,I
Leu,L
Lys,K
Met,M
Phe,F
Pro,P
Ser,S
Thr,T
Trp,W
Tyr,Y
Val,V
STOP,*