Skip to main content
Log in

Computer and Experimental Simulation of Alloxazine Synthesis from Gamma Irradiation of Amino Acids on Iceland Spar: A Prebiotic Chemistry Perspective

  • Original Article
  • Published:
Journal of Molecular Evolution Aims and scope Submit manuscript

Abstract

On ancient Earth, environmental conditions favored prebiotic chemical reactions. In the Archean, some molecules with conjugated rings might have been synthesized, displaying structural stability in the Archean in the presence of ionizing radiation and hydration–dehydration events. Additionally, it is suggested that on ancient Earth, calcite was a common mineral promoting organic compound synthesis. In the present work a study of the interaction of amino acid mixtures with the (104) surface of calcite is presented. Our preliminary results show the abiotic synthesis of alloxazine (a flavin with relevant photochemical properties). Computer simulations were performed in HyperChem 8.0.1. by means of MM+ molecular mechanics and PM3 semi-empirical methods, in 27 possible amino acid trimers of alanine, glycine and lysine. Alloxazine formation is possible by the gamma irradiation of amino acids. The computer simulations show that trimers GGG and GGA promote the further transformation from diketopiperazines (DKP’s) and KGK to alloxazine. The computer simulations with free radicals are not stable when alloxazine is interacting with the calcite surface. Experiments in anoxygenic environments with hydration–dehydration events in gamma irradiated samples allow the abiotic formation of flavins, DKP’s and a heterocycle compound with possible relevance in prebiotic chemistry.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgements

Bach. (in Chem.) Ms. Claudia Consuelo Camargo Raya, M. in Sci. Isabel Mejía Luna (Departamento de Física, Facultad de Ciencias, UNAM) M. in Sci. Benjamín Leal Acevedo, Tech. Francisco García Flores y Tech. Acad. Mr. José Rangel (AH) to PAPIIT Project RN210119. We also thank M. in Sc. Audra Patterson for the edition and English version of this manuscript and to M. in Sc. Luciano Díaz González, Martín Cruz Villafañe, Luis Miguel Valdez Pérez, Ing. Juan Eduardo Murrieta León, Antonio Ramírez Fernández, Mat. Enrique Palacios Boneta for their technical assistance. We acknowledge the relevant work from the Reviewers for the clear improvement of our manuscript.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Alejandro Heredia.

Additional information

Handling editor: Andrew Ellington.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Mendoza-Torres, E., Cruz-Catañeda, J., Negrón-Mendoza, A. et al. Computer and Experimental Simulation of Alloxazine Synthesis from Gamma Irradiation of Amino Acids on Iceland Spar: A Prebiotic Chemistry Perspective. J Mol Evol 88, 284–291 (2020). https://doi.org/10.1007/s00239-020-09933-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00239-020-09933-5

Keywords

Navigation