20 asam amino penyusun protein adalah: Serin (Ser,S), Threonine (Thr,T), Cysteine (Cys,C), Asparagine (Asn,N), Glutamine (Gln,Q) dan Tyrosine (Tyr , Y), Glisin (Gly,G), Alanin (Ala,A), Valin (Val,V), Leusin (Leu,L), Isoleusin (Ile,I), Metionin (Met,M), Prolin (Pro, P ), Fenilalanin (Phe,F) dan Triptofan (Trp,W), Asam Aspartat (Asp,D) dan Asam Glutamat (Glu,E), Lisin (Lys,K), Arginin (Arg,R) dan Histidin (Nya , jam)
[1 ] Alanin (Ala,A)
[2 ] Asam glutamat (Glu,E)
[3 ] Leusin (Leu,L)
[4 ] Serin (Ser,S)
[5 ] Arginin (Arg,R)
[6 ] Glutamin (Gln,Q)
[7 ] Lisin (Lys,K)
[8 ] Treonin (Thr,T)
[9 ] Asparagin (Asn,N)
[10 ] Glisin (Gly,G)
[11 ] Metionin (Met,M)
[12 ] Triptofan (Trp,W)
[13 ] Asam aspartat (Asp,D)
[14 ] Histidin (Nya,H)
[15 ] Fenilalanin (Phe,F)
[16 ] Tirosin (Tyr,Y)
[17 ] Sistein (Cys,C)
[18 ] Isoleusin (Ile,I)
[19 ] Prolin (Pro,P)
[20 ] Valin (Val,V)