A network model of the molecular organization of chromatin in Drosophila

Mol Cell. 2013 Feb 21;49(4):759-71. doi: 10.1016/j.molcel.2013.01.040.


Chromatin governs gene regulation and genome maintenance, yet a substantial fraction of the chromatin proteome is still unexplored. Moreover, a global model of the chromatin protein network is lacking. By screening >100 candidates we identify 42 Drosophila proteins that were not previously associated with chromatin, which all display specific genomic binding patterns. Bayesian network modeling of the binding profiles of these and 70 known chromatin components yields a detailed blueprint of the in vivo chromatin protein network. We demonstrate functional compartmentalization of this network, and predict functions for most of the previously unknown chromatin proteins, including roles in DNA replication and repair, and gene activation and repression.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bayes Theorem
  • Binding Sites
  • Cell Line
  • Chromatin / metabolism*
  • Chromosomes, Insect / metabolism
  • DNA Repair
  • DNA Replication
  • Drosophila Proteins / genetics
  • Drosophila Proteins / metabolism*
  • Drosophila Proteins / physiology
  • Drosophila melanogaster / genetics
  • Drosophila melanogaster / metabolism*
  • Gene Expression Regulation
  • Models, Biological
  • Molecular Sequence Annotation
  • Nuclear Proteins / genetics
  • Nuclear Proteins / metabolism*
  • Nuclear Proteins / physiology
  • Principal Component Analysis
  • Protein Binding
  • Protein Interaction Mapping
  • Protein Interaction Maps
  • Protein Processing, Post-Translational


  • Chromatin
  • Drosophila Proteins
  • Nuclear Proteins

Associated data

  • GEO/GSE36175