Codon
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A codon is three bases in a DNA or RNA sequence which specify a single amino acid.
Amino acid codon codes
| Amino Acid | Single Letter Code | DNA Codons |
|---|---|---|
| Isoleucine | I | ATT, ATC, ATA |
| Leucine | L | CTT, CTC, CTA, CTG, TTA, TTG |
| Valine | V | GTT, GTC, GTA, GTG |
| Phenylalanine | F | TTT, TTC |
| Methionine | M | ATG |
| Cysteine | C | TGT, TGC |
| Alanine | A | GCT, GCC, GCA, GCG |
| Glycine | G | GGT, GGC, GGA, GGG |
| Proline | P | CCT, CCC, CCA, CCG |
| Threonine | T | ACT, ACC, ACA, ACG |
| Serine | S | TCT, TCC, TCA, TCG, AGT, AGC |
| Tyrosine | Y | TAT, TAC |
| Tryptophan | W | TGG |
| Glutamine | Q | CAA, CAG |
| Asparagine | Q | AAT, AAC |
| Histidine | Q | CAT, CAC |
| Glutamic acid | Q | GAA, GAG |
| Aspartic acid | Q | GAT, GAC |
| Lysine | Q | AAA, AAG |
| Arginine | Q | CGT, CGC, CGA, CGG, AGA, AGG |
| Start Codons | Start | ATG, rarely GTG |
| Stop Codons | Stop | TAA, TAG, TGA |