International Journal of Biological Sciences
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ISSN 1449-2288

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International Journal of Medical Sciences

Int J Biol Sci 2010; 6:51-67 ©Ivyspring International Publisher

Review

A manually curated network of the PML nuclear body interactome reveals an important role for PML-NBs in SUMOylation dynamics

Ellen Van Damme1, Kris Laukens2, Thanh Hai Dang2, Xaveer Van Ostade1

1. Laboratory of Protein Chemistry, Proteomics and Signal Transduction, Department of Biomedical Sciences, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1 - Building T, 2610 Wilrijk, Belgium.
2. Intelligent Systems Laboratory (ISLab) Department of Mathematics and Computer Science, University of Antwerp (Campus Middelheim), Middelheimlaan 1 - Building G, 2020 Antwerp, Belgium

Abstract

Promyelocytic Leukaemia Protein nuclear bodies (PML-NBs) are dynamic nuclear protein aggregates. To gain insight in PML-NB function, reductionist and high throughput techniques have been employed to identify PML-NB proteins. Here we present a manually curated network of the PML-NB interactome based on extensive literature review including database information. By compiling 'the PML-ome', we highlighted the presence of interactors in the Small Ubiquitin Like Modifier (SUMO) conjugation pathway. Additionally, we show an enrichment of SUMOylatable proteins in the PML-NBs through an in-house prediction algorithm. Therefore, based on the PML network, we hypothesize that PML-NBs may function as a nuclear SUMOylation hotspot.

Keywords: PML-NB, SUMOylation, Cytoscape, protein-protein interaction, network

How to cite this article:
Van Damme E, Laukens K, Dang TH, Van Ostade X. A manually curated network of the PML nuclear body interactome reveals an important role for PML-NBs in SUMOylation dynamics. Int J Biol Sci 2010; 6:51-67. Available from http://www.biolsci.org/v06p0051.htm