Summary
Amino acid sequences are often said to code for proteins. Taking that statement literally, we propose a methodology in which protein sequences appear as messages and as such are amenable to the techniques of signal analysis. Not only does this view of amino acid sequences as messages appear to be tenable, but the clarity of expression of these sequences seems to increase, i.e., the noisiness decreases, consonant with notions of ascendancy in the hierarchy of morphological taxonomy.
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Reichert, T.A., Yu, J.M.C. & Christensen, R.A. Molecular evolution as a process of message refinement. J Mol Evol 8, 41–54 (1976). https://doi.org/10.1007/BF01738881
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DOI: https://doi.org/10.1007/BF01738881