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...