Amino Acid and Codon Table

Amino Acid

Symbol SLC

DNA codons

Isoleucine  

Ile

I

ATT, ATC, ATA

Leucine   Leu

L

CTT, CTC, CTA, CTG, TTA, TTG
Valine Val

V

GTT, GTC, GTA, GTG
Phenylalanine   Phe

F

TTT, TTC
Methionine Met M ATG
Cysteine  Cys C

TGT, TGC

Alanine       Ala

A

GCT, GCC, GCA, GCG

Glycine   Gly

G

GGT, GGC, GGA, GGG
Proline       Pro

P

CCT, CCC, CCA, CCG
Threonine   Thr

T

ACT, ACC, ACA, ACG
Serine        Ser S TCT, TCC, TCA, TCG, AGT, AGC

Tyrosine  

Tyr Y TAT, TAC
Tryptophan   Trp W TGG
Glutamine   Gln Q CAA, CAG
Asparagine   Asn N AAT, AAC
Histidine  His

H

CAT, CAC
Glutamic acid   Glu

E

GAA, GAG

Aspartic acid 

Asp

D

GAT, GAC
Lysine        Lys

K

AAA, AAG
Arginine   Arg

R

CGT, CGC, CGA, CGG, AGA, AGG
Stop codons Stop * TAA, TAG, TGA

20 Amino acids, their symbols, single-letter data-base codes (SLC), and corresponding DNA codons.

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