Orderly order in protein intrinsic disorder distribution: Disorder in 3500 proteomes from viruses and the three domains of life

Bin Xue, A. Dunker, Vladimir N. Uversky

Research output: Contribution to journalArticle

246 Citations (Scopus)

Abstract

Intrinsically disordered proteins and intrinsically disordered protein regions are highly abundant in nature. However, the quantitative and qualitative measures of protein intrinsic disorder in species with known genomes are still not available. Furthermore, although the correlation between high fraction of disordered residues and advanced species has been reported, the details of this correlation and the connection between the disorder content and proteome complexity have not been reported as of yet. To fill this gap, we analysed entire proteomes of 3484 species from three domains of life (archaea, bacteria and eukaryotes) and from viruses. Our analysis revealed that the evolution process is characterized by distinctive patterns of changes in the protein intrinsic disorder content. We are showing here that viruses are characterized by the widest spread of the proteome disorder content (the percentage of disordered residues ranges from 7.3% in human coronavirus NL63 to 77.3% in Avian carcinoma virus). For several organisms, a clear correlation is seen between their disorder contents and habitats. In multicellular eukaryotes, there is a weak correlation between the complexity of an organism (evaluated as a number of different cell types) and its overall disorder content. For both the prokaryotes and eukaryotes, the disorder content is generally independent of the proteome size. However, disorder shows a sharp increase associated with the transition from prokaryotic to eukaryotic cells. This suggests that the increased disorder content in eukaryotic proteomes might be used by nature to deal with the increased cell complexity due to the appearance of the various cellular compartments.

Original languageEnglish
Pages (from-to)137-149
Number of pages13
JournalJournal of Biomolecular Structure and Dynamics
Volume30
Issue number2
DOIs
StatePublished - 2012

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Proteome
Viruses
Eukaryota
Intrinsically Disordered Proteins
Proteins
Human Coronavirus NL63
Archaea
Eukaryotic Cells
Ecosystem
Cell Count
Genome
Bacteria
Carcinoma

Keywords

  • Archaea
  • Bacteria
  • Eukaryotes
  • Evolution
  • Intrinsic disorder
  • Prokaryotes
  • Proteome complexity
  • Viruses

ASJC Scopus subject areas

  • Molecular Biology
  • Structural Biology

Cite this

Orderly order in protein intrinsic disorder distribution : Disorder in 3500 proteomes from viruses and the three domains of life. / Xue, Bin; Dunker, A.; Uversky, Vladimir N.

In: Journal of Biomolecular Structure and Dynamics, Vol. 30, No. 2, 2012, p. 137-149.

Research output: Contribution to journalArticle

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