JOURNAL ARTICLE

Scientists stunned by 'fundamentally new way' life produces DNA: Newly discovered bacterial defense system challenges genetic code's central dogma.

  • Published In: Sciencemag.org, 2026. P. N.PAG 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Stone, Richard 3 of 3

Abstract

The article focuses on the discovery of a novel bacterial defense system called DRT3, which challenges the traditional understanding of DNA synthesis. Unlike conventional DNA replication that relies on nucleic acid templates, DRT3 uses two reverse transcriptases: one that synthesizes DNA from an RNA template and an unusual enzyme, Drt3b, that synthesizes DNA using its own amino acid structure as a template. This mechanism represents a significant departure from the central dogma of molecular biology and may play a role in bacterial immunity against viruses (phages). The widespread presence of DRT3 in bacteria suggests it is a common defense strategy, with potential applications in biotechnology for sequence-specific DNA synthesis and biomaterial development. [Extracted from the article]

Additional Information

  • Source:Sciencemag.org. 2026/04, pN.PAG
  • Document Type:Article
  • Subject Area:Health and Medicine
  • Publication Date:2026
  • Accession Number:193098135
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