|
Codons and amino acids |
|
NOTE - starting VarNomen version 3 the '*' is used to indicate a translation stop codon, replacing the 'X' used previously (see Background).
| Nucleotide position in codon | |||||
|---|---|---|---|---|---|
| first | second | third | |||
| 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 - * UAG - * |
UGU - Cys UGC - Cys UGA - * 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 GUC - Val GUA - Val GUG - Val |
GCU - Ala GCC - Ala GCA - Ala GCG - Ala |
GAU - Asp GAC - Asp GAA - Glu GAG - Glu |
GGU - Gly GGC - Gly GGA - Gly GGG - Gly |
U C A G |
| One letter code |
Three letter code |
Amino acid | Possible codons |
|---|---|---|---|
| A | Ala | Alanine | GCA, GCC, GCG, GCT |
| B | Asx | Asparagine or Aspartic acid | AAC, AAT, GAC, GAT |
| C | Cys | Cysteine | TGC, TGT |
| D | Asp | Aspartic acid | GAC, GAT |
| E | Glu | Glutamic acid | GAA, GAG |
| F | Phe | Phenylalanine | TTC, TTT |
| G | Gly | Glycine | GGA, GGC, GGG, GGT |
| H | His | Histidine | CAC, CAT |
| I | Ile | Isoleucine | ATA, ATC, ATT |
| K | Lys | Lysine | AAA, AAG |
| L | Leu | Leucine | CTA, CTC, CTG, CTT, TTA, TTG |
| M | Met | Methionine | ATG |
| N | Asn | Asparagine | AAC, AAT |
| P | Pro | Proline | CCA, CCC, CCG, CCT |
| Q | Gln | Glutamine | CAA, CAG |
| R | Arg | Arginine | AGA, AGG, CGA, CGC, CGG, CGT |
| S | Ser | Serine | AGC, AGT, TCA, TCC, TCG, TCT |
| T | Thr | Threonine | ACA, ACC, ACG, ACT |
| V | Val | Valine | GTA, GTC, GTG, GTT |
| W | Trp | Tryptophan | TGG |
| X | X | any codon | NNN |
| Y | Tyr | Tyrosine | TAC, TAT |
| Z | Glx | Glutamine or Glutamic acid | CAA, CAG, GAA, GAG |
| * | * | stop codon | TAA, TAG, TGA |
| Property | Amino acids | |
|---|---|---|
| small | Ala, Gly | |
| acidic / amide | Asp, Glu, Asn, Gln | |
| charged | negative | Asp, Glu |
| positive | Lys, Arg | |
| polar | Ala, Gly, Ser, Thr, Pro | |
| hydrophobic | Val, Leu, Ile, Met | |
| size | big | Glu, Gln, His, Ile, Lys, Leu, Met, Phe, Trp, Tyr |
| small | Ala, Asn, Asp, Cys, Gly, Pro, Ser, Thr, Val | |
| aliphatic | Ile, Leu, Val | |
| aromatic | His, Phe, Tyr, Trp | |
| Top of page | MutNomen
homepage | Check-list |
| Recommendations: DNA, RNA, protein, uncertain |
| Discussions | Symbols, codons, etc. | FAQ's | History |
| Example descriptions: QuickRef / symbols,
DNA, RNA, protein |
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