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Arbitrariness is not enough: towards a functional approach to the genetic code.

Ľudmila Lacková1, Vladimír Matlach2, Dan Faltýnek2

  • 1Department of General Linguistics, Palacký University, Křížkovského 14, 771 47, Olomouc, Czech Republic. ludmila.lackova01@upol.cz.

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The genetic code may be more than just arbitrary base pairings. A semiotic perspective suggests protein function, not just nucleic acid sequences, defines the genetic code

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Area of Science:

  • Molecular Biology
  • Biosemiotics
  • Linguistics

Background:

  • The genetic code is often viewed as arbitrary, linking amino acids to nucleobases.
  • A purely relational view may be insufficient for a complete understanding of biological codes.

Purpose of the Study:

  • To propose a semiotic model of the genetic code.
  • To redefine the genetic code beyond its relational aspects.
  • To explore the functional meaning within protein synthesis.

Main Methods:

  • Semiotic analysis of the genetic code.
  • Functional definition of meaning in biological systems.
  • Critique of existing models of the genetic code.

Main Results:

  • Arbitrariness alone does not fully define the genetic code.
  • A functional perspective is crucial for understanding the genetic code's meaning.
  • Protein function acts as the 'meaning' or 'object' of the genetic code.

Conclusions:

  • The current model of the genetic code is not exhaustive.
  • A semiotic approach offers a more comprehensive model.
  • Reconsidering the expression of the genetic code is necessary.