title: A nuclear traffic jam - unraveling multicomponent machines and compartments.
authors.affiliation: Ulrich K Laemmli, Departments of Biochemistry and Molecular Biology, University of Geneva, 30 Quai Ernest Ansermet, CH1211 Geneva 4, Switzerland; e-mail: Laemmli@sc2a.unige.ch
authors.initials: UK
authors.lastname: Laemmli
authors.initials: R
authors.lastname: Tjian