Clink, a Nanovirus-Encoded Protein, Binds both pRB and SKP1

Author:

Aronson Marie N.1,Meyer Alain D.1,Györgyey Jànos1,Katul Lina2,Vetten H. Josef2,Gronenborn Bruno1,Timchenko Tatiana1

Affiliation:

1. Institut des Sciences Végétales, CNRS, 91198 Gif sur Yvette, France,1 and

2. Biologische Bundesanstalt für Land und Forstwirtschaft, Institut für Pflanzenvirologie, Mikrobiologie und Biologische Sicherheit, D-38104 Braunschweig, Germany2

Abstract

ABSTRACT Clink, a 20-kDa protein of faba bean necrotic yellows virus, a single-stranded DNA plant virus, interacts with pRB family members and a SKP1 homologue from Medicago sativa . An LxCxE motif and an F-box of Clink mediate the interactions with the respective proteins. The capacity of Clink to bind pRB correlates with its ability to stimulate viral replication. Interaction of a single protein with the cell cycle regulator pRB and SKP1, a constituent of the ubiquitin-protein turnover pathway, appears to be a novel feature. Hence, Clink may represent a new class of viral cell cycle modulators.

Publisher

American Society for Microbiology

Subject

Virology,Insect Science,Immunology,Microbiology

Reference52 articles.

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4. SKP1 connects cell cycle regulators to the ubiquitin proteolysis machinery through a novel motif, the F-box;Bai C.;Cell.,1996

5. The human papillomavirus E7 oncoprotein functionally interacts with the S4 subunit of the 26 S proteasome;Berezutskaya E.;J. Biol. Chem.,1997

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