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The codon->amino acid table is not always expressed in the same way within human cells. Mitochondria utilize different codons for the same amino acids compared
by abcc8 7y ago
The codon->amino acid table is not always expressed in the same way within human cells. Mitochondria utilize different codons for the same amino acids compared to the nuclear genome.
- king07828 7y agoFascinating. Multiple different DNA based instruction set architectures. https://en.wikipedia.org/wiki/Human_mitochondrial_genetics https://en.wikipedia.org/wiki/Human_mitochondrial_genetics Genetic Code Variants For most organisms the "stop codons" are "UAA", "UAG", and "UGA". In vertebrate mitochondria "AGA" and "AGG" are also stop codons, but not "UGA", which codes for tryptophan instead. "AUA" codes for isoleucine in most organisms but for methionine in vertebrate mitochondrial mRNA. wikipedia cites to https://www.ncbi.nlm.nih.gov/Taxonomy/Utils/wprintgc.cgi https://www.ncbi.nlm.nih.gov/Taxonomy/Utils/wprintgc.cgi?