Yeast mitochondrial code
The yeast mitochondrial code is a genetic code used by the mitochondrial genome of yeasts, notably Saccharomyces cerevisiae, Candida glabrata, Hansenula saturnus, and Kluyveromyces thermotolerans.The code
Bases: adenine, cytosine, guanine and thymine or uracil.
Amino acids: Alanine, Arginine, Asparagine, Aspartic acid, Cysteine, Glutamic acid, Glutamine, Glycine, Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Proline, Serine, Threonine, Tryptophan, Tyrosine, Valine.| DNA codons | RNA codons | This code | | Standard code |
| ATA | AUA | Met | | Ile |
| CTT | CUU | Thr | | Leu |
| CTC | CUC | Thr | | Leu |
| CTA | CUA | Thr | | Leu |
| CTG | CUG | Thr | | Leu |
| TGA | UGA | Trp | | STOP = Ter |
| CGA | CGA | Absent | | Arg |
| CGC | CGC | Absent | | Arg |
- The remaining CGN codons are rare in Saccharomyces cerevisiae and absent in Candida glabrata.
- The AUA codon is common in the gene var1 coding for the single mitochondrial ribosomal protein, but rare in genes encoding the enzymes.
- The coding assignments of the AUA and CUU are uncertain in Hansenula saturnus.
- The coding assignment of Thr to CUN is uncertain in Kluyveromyces thermotolerans.
