Harnessing stepping-stone hosts to engineer, select, and reboot synthetic bacteriophages in one pot

Cell Rep Methods. 2022 May 23;2(5):100217. doi: 10.1016/j.crmeth.2022.100217.

Abstract

Advances in synthetic genomics have led to a great demand for genetic manipulation. Trimming any process to simplify and accelerate streamlining of genetic code into life holds great promise for synthesizing and studying organisms. Here, we develop a simple but powerful stepping-stone strategy to promote genome refactoring of viruses in one pot, validated by successful cross-genus and cross-order rebooting of 90 phages infecting 4 orders of popular pathogens. Genomic sequencing suggests that rebooting outcome is associated with gene number and DNA polymerase availability within phage genomes. We integrate recombineering, screening, and rebooting processes in one pot and demonstrate genome assembly and genome editing of phages by stepping-stone hosts in an efficient and economic manner. Under this framework, in vitro assembly, yeast-based assembly, or genetic manipulation of native hosts are not required. As additional stepping-stone hosts are being developed, this framework will open doors for synthetic phages targeting more pathogens and commensals.

Keywords: antibiotic resistance; intermediate host; in vivo genome assembly; phage biology; phage engineering; phage therapy; synthetic biology; synthetic genomics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacteriophages* / genetics
  • Base Sequence
  • DNA-Directed DNA Polymerase / genetics
  • Gene Editing
  • Genomics

Substances

  • DNA-Directed DNA Polymerase