Fig. 2: The Genetic Code - Codons

 
U
C
A
G
  
U
 UUU = Phe
UUC = Phe
UUA = Leu
UUG = Leu		 UCU = Ser
UCC = Ser
UCA = Ser
UCG = Ser		 UAU = Tyr
UAC = Tyr
UAA = Stop
UAG = Stop		 UGU = Cys
UGC = Cys
UGA = Stop
UGG = Trp		 U
C
A
G
C
 CUU = Leu
CUC = Leu
CUA = Leu
CUG = Leu		 CCU = Pro
CCC = Pro
CCA = Pro
CCG = Pro		 CAU = His
CAC = His
CAA = Gln
CAG = Gln		 CGU = Arg
CGC = Arg
CGA = Arg
CGG = Arg		 U
C
A
G
A
 AUU = Ile
AUC = Ile
AUA = Ile
AUG = Met		 ACU = Thr
ACC = Thr
ACA = Thr
ACG = Thr		 AAU = Asn
AAC = Asn
AAA = Lys
AAG = Lys		 AGU = Ser
AGC = Ser
AGA = Arg
AGG = Arg		 U
C
A
G
G
 GUU = Val
CUC = Val
GUA = Val
GUG = Val
 GCU = Ala
GCC = Ala
GCA = Ala
GCG = Ala		 GAU = Asp
GAC = Asp
GAA = Glu
GAG = Glu		 GGU = Gly
GCG = Gly
GGA = Gly
GGG = Gly		 U
C
A
G

AUG = start codon
UAA, UAG, and UGA = stop (nonsense) codons

Amino Acids

Phe = phenylalanine
Leu = leucine
Ile = isoleucine
Met = methionine
Val = valine		 Ser = serine
Pro = proline
Thr = threonine
Ala = alanine
Tyr = tyrosine		 His = histidine
Gln = glutamine
Asn = asparagine
Lys = lysine
Asp = aspartic acid		 Glu = glutamic acid
Cys = cysteine
Trp = tryptophan
Arg = arginine
Gly = glycine

Gary E. Kaiser, Ph.D.
Professor of Microbiology
The Community College of Baltimore County, Catonsville Campus
This work is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at http://faculty.ccbcmd.edu/~gkaiser/index.html.

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Last updated: August, 2018
Please send comments and inquiries to Dr. Gary Kaiser