Codon Chart

A reference codon chart for the three-letter RNA codes and their corresponding amino acids. Below are the nucleotides and their abbreviations, followed by amino acids and their full name, three letter code, and single letter abbreviations.

	2^nd position
1^st position	U	C	A	G	3^rd position
U	Phe	Ser	Tyr	Cys	U
U	Phe	Ser	Tyr	Cys	C
U	Leu	Ser	stop	stop	A
U	Leu	Ser	stop	Trp	G
C	Leu	Pro	His	Arg	U
C	Leu	Pro	His	Arg	C
C	Leu	Pro	Gln	Arg	A
C	Leu	Pro	Gln	Arg	G
A	Ile	Thr	Asn	Ser	U
A	Ile	Thr	Asn	Ser	C
A	Ile	Thr	Lys	Arg	A
A	Met	Thr	Lys	Arg	G
G	Val	Ala	Asp	Gly	U
G	Val	Ala	Asp	Gly	C
G	Val	Ala	Glu	Gly	A
G	Val	Ala	Glu	Gly	G

Nucleotide Abbreviations
A	Adenine
G	Guanin
C	Cytosine
T	Thymine
U	Uracil

Amino Acid Abbreviations
Alanine	Ala	A
Asparagine	Asn	N
Aspartic acid	Asp	D
Arginine	Arg	R
Cysteine	Cys	C
Glutamic Acid	Glu	E
Glutamine	Gln	Q
Glycine	Gly	G
Histidine	His	H
Isoleucine	Ile	I
Lysine	Lys	K
Leucine	Leu	L
Methionine	Met	M
Phenylalanine	Phe	F
Proline	Pro	P
Serine	Ser	S
Threonine	Thr	T
Tryptophan	Trp	W
Tyrosine	Tyr	Y
Valine	Val	V