Some archaea uses different start codons

Thread starter nemzy
Start date Jun 5, 2007

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SUMMARY

Some archaea predominantly utilize the TTG start codon instead of the conventional ATG. This variation in start codon usage suggests significant evolutionary implications, indicating that eukaryotic DNA processes likely did not originate from these archaea. The discussion highlights the diversity of start codons among different organisms, including bacteria, and raises questions about the evolutionary pathways of genetic coding.

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Jun 5, 2007

nemzy

in some archaea, it uses TTG start codon most of the time, rather than the conventional ATG.. Does anyone know what the significance of this is?

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Jun 5, 2007

jim mcnamara

Mentor

There are several different start codons used by bacteria and cousins.
All that implies (IMO) is that eucaryotic DNA "operations" probably did not derive from those groups.