Modeling nucleotide excision repair and its impact on UV-induced mutagenesis during SOS-response in bacterial cells

J Theor Biol. 2015 Jan 7:364:7-20. doi: 10.1016/j.jtbi.2014.08.041. Epub 2014 Sep 4.

Abstract

A model of the UV-induced mutation process in Escherichia coli bacteria has been developed taking into account the whole sequence of molecular events starting from initial photo-damage and finishing with the fixation of point mutations. The wild-type phenotype bacterial cells are compared with UV-sensitive repair-deficient mutant cells. Attention is mainly paid to excision repair system functioning as regards induced mutagenesis.

Keywords: Mathematical modeling; UV mutagenesis.

MeSH terms

  • DNA Damage
  • DNA Repair / radiation effects*
  • DNA Replication
  • DNA, Bacterial / biosynthesis
  • Escherichia coli / cytology*
  • Escherichia coli / metabolism*
  • Escherichia coli / radiation effects
  • Escherichia coli Proteins / metabolism
  • Kinetics
  • Models, Biological*
  • Mutagenesis / radiation effects*
  • Mutation Rate
  • SOS Response, Genetics / radiation effects*
  • Ultraviolet Rays*

Substances

  • DNA, Bacterial
  • Escherichia coli Proteins