Code as an Analogy of DNA?

[Mercer (John Mercer)]

@DMath

I don’t know that this helps the argument that DNA does not use a code…it just means the code’s conversion table is implemented by the aminoacyl-tRNA-synthetase enzymes.

There are no abstractions in that process.

@DMath

The are many human defined codes that have stop symbol but no start symbol.

There are none AFAIK that have an elaborate system for working around the “messages” that require the start character to be removed.

An intelligently designed genetic code would have a beginning that is as intelligently designed as the end, with a start codon that allows the desired N-terminal amino acid residue to follow it.

@DMath

My understanding is that there is an error control function to the specifics of the stop codons in that many frame shift mutations actually increase the frequency of stop codons that prevent long strings of malformed amino acid strings from gumming up the works.

I’m having trouble parsing that sentence, but whatever you mean, you’re missing the point that (at least in bacteria) suppressor mutations in tRNA genes that cause them to recognize stop codons, cause amino acids to be inserted instead of stopping. The run-on proteins are tolerated, which is why stop codons are amenable to change.