The transcriptional landscape of a rewritten bacterial genome reveals control elements and genome design principles.

ABSTRACT: Sequence rewriting enables low-cost genome synthesis and the design of biological systems with orthogonal genetic codes. The error-free, robust rewriting of nucleotide sequences can be achieved with a complete annotation of gene regulatory elements. Here, we compare transcription in Caulobacter crescentus to transcription from plasmid-borne segments of the synthesized genome of C. ethensis 2.0. This rewritten derivative contains an extensive amount of supposedly neutral mutations, including 123'562 synonymous codon changes. The transcriptional landscape refines 60 promoter annotations, exposes 18 termination elements and links extensive transcription throughout the synthesized genome to the unintentional introduction of sigma factor binding motifs. We reveal translational regulation for 20

SUBMITTER: van Kooten MJFM 

PROVIDER: S-EPMC8144410 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature