Amino Acid Encoded, Including the Property and Formula of Its Side Chain  mRNA Codon  % of Each Base for mRNA Codons with Four Synonyms  
1^{st} Position (Left)  2^{nd} Position (Middle)  3^{rd} Position (Right)  1^{st} and 2^{nd} Positions  All Three Positions  
Threonine (Thr) polar CHCH_{3}OH  ACA ACG ACU ACC 
% of A 4/32 = 12.5%
% of U 4/32 = 12.5%
% of G 12/32 = 37.5%
% of C 12/32 = 37.5%

% of A 0/32 = 0%
% of U 8/32 = 25%
% of G 8/32 = 25%
% of C 16/32 = 50%

% of A 8/32 = 25%
% of U 8/32 = 25%
% of G 8/32 = 25%
% of C 8/32 = 25%

% of A 4/64 = 6.2%
% of U 12/64 = 18.8%
% of G 20/64 = 31.2%
% of C 28/64 = 43.8%

% of A 12/96 = 12.5%
% of U 20/96 = 20.8%
% of G 28/96 = 29.2%
% of C 36/96 = 37.5%

Serine (Ser) polar CH_{2}OH  UCA UCG UCU UCC  
Valine (Val) hydrophobic CH(CH_{3})_{2}  GUA GUG GUU GUC  
Glycine (Gly) hydrophobic H  GGA GGG GGU GGC  
Alanine (Ala) hydrophobic CH_{3}  GCA GCG GCU GCC  
Leucine (Leu) hydrophobic CH_{2}CH(CH_{3})_{2}  CUA CUG CUU CUC  
Arginine (Arg) positively charged ${\text{CH}}_{2}{\text{CH}}_{2}{\text{CH}}_{2}\text{NHC}{\left({\text{NH}}_{2}\right)}_{2}^{+}$  CGA CGG CGU CGC  
Proline (Pro) hydrophobic CH_{2}CH_{2}CH_{2}  CCA CCG CCU CCC 