Cross-species Functionome analysis identifies proteins associated with DNA repair, translation and aerobic respiration as conserved modulators of UV-toxicity

Genomics. 2011 Mar;97(3):133-47. doi: 10.1016/j.ygeno.2010.12.005. Epub 2010 Dec 30.


Cellular responses to DNA damage can prevent mutations and death. In this study, we have used high throughput screens and developed a comparative genomic approach, termed Functionome mapping, to discover conserved responses to UVC-damage. Functionome mapping uses gene ontology (GO) information to link proteins with similar biological functions from different organisms, and we have used it to compare 303, 311 and 288 UVC-toxicity modulating proteins from Escherichia coli, Schizosaccharomyces pombe and Saccharomyces cerevisiae, respectively. We have demonstrated that all three organisms use DNA repair, translation and aerobic respiration associated processes to modulate the toxicity of UVC, with these last two categories highlighting the importance of ribosomal proteins and electron transport machinery. Our study has demonstrated that comparative genomic approaches can be used to identify conserved responses to damage, and suggest roles for translational machinery and components of energy metabolism in optimizing the DNA damage response.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Respiration / genetics*
  • DNA Damage / genetics*
  • DNA Repair / genetics*
  • Escherichia coli / genetics
  • Escherichia coli / radiation effects
  • Genomics / methods
  • High-Throughput Screening Assays
  • Protein Biosynthesis / genetics*
  • Proteins / genetics*
  • Radiation Tolerance / genetics*
  • Saccharomyces cerevisiae / genetics
  • Saccharomyces cerevisiae / radiation effects
  • Schizosaccharomyces / genetics
  • Schizosaccharomyces / radiation effects
  • Sequence Deletion
  • Ultraviolet Rays*


  • Proteins