Research
Towards defining the nuclear proteome
-
* Corresponding author: Rohan D Teasdale R.Teasdale@imb.uq.edu.au
- † Equal contributors
1 ARC Centre of Excellence in Bioinformatics, The University of Queensland, St Lucia, Queensland, 4072, Australia
2 Institute for Molecular Bioscience, University of Queensland, St Lucia, Queensland, 4072, Australia
3 Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, New Delhi, 110016, India
4 Advanced Computational Modelling Centre, Department of Mathematics, University of Queensland, St Lucia, Queensland, 4072, Australia
5 Genome Exploration Research, RIKEN Genomic Sciences Center (GSC), RIKEN Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
6 Genome Science Laboratory, Discovery Research Institute, RIKEN Wako Institute, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
Genome Biology 2008, 9:R15 doi:10.1186/gb-2008-9-1-r15
Published: 23 January 2008Abstract
Background
The nucleus is a complex cellular organelle and accurately defining its protein content is essential before any systematic characterization can be considered.
Results
We report direct evidence for 2,568 mammalian proteins within the nuclear proteome: the nuclear subcellular localization of 1,529 proteins based on a high-throughput subcellular localization protocol of full-length proteins and an additional 1,039 proteins for which clear experimental evidence is documented in published literature. This is direct evidence that the nuclear proteome consists of at least 14% of the entire proteome. This dataset was used to evaluate computational approaches designed to identify additional nuclear proteins.
Conclusion
This represents direct experimental evidence that the nuclear proteome consists of at least 14% of the entire proteome. This high-quality nuclear proteome dataset was used to evaluate computational approaches designed to identify additional nuclear proteins. Based on this analysis, researchers can determine the stringency and types of lines of evidence they consider to infer the size and complement of the nuclear proteome.