The Bitome: digitized genomic features reveal fundamental genome organization

Nucleic Acids Res. 2020 Oct 9;48(18):10157-10163. doi: 10.1093/nar/gkaa774.

Abstract

A genome contains the information underlying an organism's form and function. Yet, we lack formal framework to represent and study this information. Here, we introduce the Bitome, a matrix composed of binary digits (bits) representing the genomic positions of genomic features. We form a Bitome for the genome of Escherichia coli K-12 MG1655. We find that: (i) genomic features are encoded unevenly, both spatially and categorically; (ii) coding and intergenic features are recapitulated at high resolution; (iii) adaptive mutations are skewed towards genomic positions with fewer features; and (iv) the Bitome enhances prediction of adaptively mutated and essential genes. The Bitome is a formal representation of a genome and may be used to study its fundamental organizational properties.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Escherichia coli K12 / genetics*
  • Genome, Bacterial*
  • Genomics