Beta-turn-driven early evolution: the genetic code and biosynthetic pathways.

  title={Beta-turn-driven early evolution: the genetic code and biosynthetic pathways.},
  author={Jerzy Jurka and Temple F. Smith},
  journal={Journal of molecular evolution},
  volume={25 1},
The physicochemical properties of beta-turns suggest their biological importance prior to the formation of the genetic code. These properties include ones potentially affecting the preference for either L- or D-amino acids. The abundance of certain amino acids in beta-turns is correlated with their assignment to a small, well-defined part of the genetic code and with their role as metabolic precursors for other amino acids. It is proposed that in the prebiotic environment, beta-turns became… CONTINUE READING

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