[spiritbear14]

I think the idea is that this different codon sequence "may" be able to be used by the biological organism in a as yet to be discovered way. So, it wouldn't be useful in producing more proteins but may be able to affect the cell in some other way. I've never heard of anything like that though and the redundant codons is probably just the most thermodynamically efficient route to protein production. Interesting thought though

[asdff]

Redundant codons allows for more fidelity in signal. If you notice for most codons in the codon table the third base in the codon can mutate and still encode for the same amino acid. Now that position in the DNA is more tolerant of receiving a mutation to the point we call it a silent mutation if one is there.