An all-purine precursor of nucleic acids.

AUTOR(ES)

Wächtershäuser, G

RESUMO

The theory is proposed that the pyrimidines in extant nucleic acids are postenzymatic substitutes for their isoelectronic and isogeometric position 3-bonded purine analogs xanthine and isoguanine, which were sibling products in a preenzymatic de novo purine pathway.

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