2. Academic Validation
  3. Systematic analysis of human protein complexes identifies chromosome segregation proteins

Systematic analysis of human protein complexes identifies chromosome segregation proteins

  • Science. 2010 Apr 30;328(5978):593-9. doi: 10.1126/science.1181348.
James R A Hutchins 1,  Yusuke Toyoda,  Björn Hegemann,  Ina Poser,  Jean-Karim Hériché,  Martina M Sykora,  Martina Augsburg,  Otto Hudecz,  Bettina A Buschhorn,  Jutta Bulkescher,  Christian Conrad,  David Comartin,  Alexander Schleiffer,  Mihail Sarov,  Andrei Pozniakovsky,  Mikolaj Michal Slabicki,  Siegfried Schloissnig,  Ines Steinmacher,  Marit Leuschner,  Andrea Ssykor,  Steffen Lawo,  Laurence Pelletier,  Holger Stark,  Kim Nasmyth,  Jan Ellenberg,  Richard Durbin,  Frank Buchholz,  Karl Mechtler,  Anthony A Hyman,  Jan-Michael Peters
Affiliations

Affiliation

  • 1 Research Institute of Molecular Pathology (IMP), Dr. Bohr-Gasse 7, A-1030 Vienna, Austria.
PMID: 20360068 DOI: 10.1126/science.1181348
Abstract

Chromosome segregation and cell division are essential, highly ordered processes that depend on numerous protein complexes. Results from recent RNA interference screens indicate that the identity and composition of these protein complexes is incompletely understood. Using gene tagging on Bacterial artificial chromosomes, protein localization, and tandem-affinity purification-mass spectrometry, the MitoCheck consortium has analyzed about 100 human protein complexes, many of which had not or had only incompletely been characterized. This work has led to the discovery of previously unknown, evolutionarily conserved subunits of the anaphase-promoting complex and the gamma-tubulin ring complex--large complexes that are essential for spindle assembly and chromosome segregation. The approaches we describe here are generally applicable to high-throughput follow-up analyses of phenotypic screens in mammalian cells.

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