Oregon State University in the Fall 


Oregon State University
| College of Science | Biology Program | General Biology | BI 101 | BI 102 | BI 103

Amino Acid Translation Table

Use this table to translate an mRNA code into an amino acid sequence.

1) Locate the first nitrogenous base (A, U, C, or G) of the codon you are translating. Then match it with the "First Letter" row of the table [large shaded white (A or C) or salmon (U or G) rows].
2) Next working in the "First Letter" row, match the second base to the "Second Letter" column, cells outlined in black, red, blue, or green.
3) Finally, you are now down to four options depending upon the "Third Letter" color coded row, the text is color coded A,U,C,G.

A
U
C
G
A
AAA
Lysine
AUA
Isoleucine
ACA
Threonine
AGA
Arginine
A
AAU
Asparagine
AUU
Isoleucine
ACU
Threonine
AGU
Serine
U
AAC
Asparagine
AUC
Isoleucine
ACC
Threonine
AGC
Serine
C
AAG
Lysine
AUG
Initiation Codon;
Methionine
ACG
Threonine
AGG
Arginine
G
U
UAA
Stop Codon
UUA
Leucine
UCA
Serine
UGA
Stop Codon
A
UAU
Tyrosine
UUU
Phenylalanine
UCU
Serine
UGU
Cysteine
U
UAC
Tyrosine
UUC
Phenylalanine
UCC
Serine
UGC
Cysteine
C
UAG
Stop Codon
UUG
Leucine
UCG
Serine
UGG
Tryptophan
G
C
CAA
Glutamine
CUA
Leucine
CCA
Proline
CGA
Arginine
A
CAU
Histidine
CUU
Leucine
CCU
Proline
CGU
Arginine
U
CAC
Histidine
CUC
Leucine
CCC
Proline
CGC
Arginine
C
CAG
Glutamine
CUG
Leucine
CCG
Proline
CGG
Arginine
G
G
GAA
Glutamic Acid
GUA
Valine
GCA
Alanine
GGA
Glycine
A
GAU
Aspartic Acid
GUU
Valine
GCU
Alanine
GGU
Glycine
U
GAC
Aspartic Acid
GUC
Valine
GCC
Alanine
GGC
Glycine
C
GAG
Glutamic Acid
GUG
Valine
GCG
Alanine
GGG
Glycine
G

Oregon State University | College of Science | Biology Program | General Biology | BI 101 | BI 102 | BI 103