Affiliation: University of Illinois
- Organelle transport along microtubules in Xenopus melanophores: evidence for cooperation between multiple motorsValeria Levi
Laboratory for Fluorescence Dynamics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
Biophys J 90:318-27. 2006..The model also shows that multiple motors of the same polarity cooperate during the melanosome transport, whereas motors of opposite polarity do not compete...
- Exploring dynamics in living cells by tracking single particlesValeria Levi
Laboratorio de Electrónica Cuántica, Departamento de Fisica, Universidad de Buenos Aires, Pabellón I Ciudad Universitaria, Buenos Aires, Argentina
Cell Biochem Biophys 48:1-15. 2007..Also, we present some common tools used to analyze trajectories and illustrate with some examples the applications of single particle tracking to study dynamics in living cells...
- 3-D particle tracking in a two-photon microscope: application to the study of molecular dynamics in cellsValeria Levi
Laboratory for Fluorescence Dynamics, University of Illinois at Urbana Champaign, Urbana, Illinois 61801 3080, USA
Biophys J 88:2919-28. 2005..7 cP. The feasibility of this method for live cell measurements is demonstrated studying the phagocytosis of protein-coated fluorospheres by fibroblasts...
- Chromatin dynamics in interphase cells revealed by tracking in a two-photon excitation microscopeValeria Levi
Laboratory for Fluorescence Dynamics, and Department of Cell and Structural Biology, Chemical and Life Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080, USA
Biophys J 89:4275-85. 2005..Additionally, the jumps were sensitive to the temperature and absent after ATP depletion. These experimental results point to an energy-dependent mechanism driving fast motion of chromatin in interphase cells...
- Melanosomes transported by myosin-V in Xenopus melanophores perform slow 35 nm stepsValeria Levi
Biophys J 90:L07-9. 2006..The step duration was in the range 20-80 ms, slower than what it would be expected from in vitro results. We speculate that the cytoplasm high viscosity may affect significantly the melanosomes' motion...