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          Institute: MPI für molekulare Genetik     Collection: Department of Computational Molecular Biology     Display Documents

ID: 229463.0, MPI für molekulare Genetik / Department of Computational Molecular Biology
Insights into the evolution of the nucleolus by an analysis of its protein domain repertoire
Authors:Staub, Eike; Fiziev, Petko; Rosenthal, André; Hinzmann, Bernd
Date of Publication (YYYY-MM-DD):2004-04-21
Title of Journal:BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology
Issue / Number:5
Start Page:567
End Page:81
Copyright:© 2004 Wiley Periodicals, Inc.
Review Status:not specified
Audience:Experts Only
Abstract / Description:Recently, the first investigation of nucleoli using mass spectrometry led to the identification of 271 proteins. This represents a rich resource for a comprehensive investigation of nucleolus evolution. We applied a protocol for the identification of known and novel conserved protein domains of the nucleolus, resulting in the identification of 115 known and 91 novel domain profiles. The phyletic distribution of nucleolar protein domains in a collection of complete proteomes of selected organisms from all domains of life confirms the archaebacterial origin of the core machinery for ribosome maturation and assembly, but also reveals substantial eubacterial and eukaryotic contributions to nucleolus evolution. We predict that, in different phases of nucleolus evolution, protein domains with different biochemical functions were recruited to the nucleolus. We suggest a model for the late and continous evolution of the nucleolus in early eukaryotes and argue against an endosymbiotic origin of the nucleolus and the nucleus.
Comment of the Author/Creator:Supplementary material for this article can be found on the BioEssays website at BioEssays 26:567-581, 2004. © 2004 Wiley Periodicals, Inc.
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:Martin Vingron
Affiliations:MPI für molekulare Genetik
External Affiliations:metaGen Pharmaceuticals GmbH, Berlin, Germany.
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