Localization of myosin-V in the centrosome
AUTOR(ES)
Espreafico, Enilza M.
FONTE
The National Academy of Sciences
RESUMO
The perinuclear localization of myosin-V was investigated in a variety of cultured mammalian cells and in primary cultures of rat hippocampus. In all cells investigated, myosin-V immunoreactivity was associated with the centrosome. In interphase cells, myosin-V was found in pericentriolar material, and in both mother and daughter centrioles. These results were obtained by using two different fixation protocols with three different affinity-purified antibodies that recognized a single band in Western blots. During cell division, myosin-V staining was intense throughout the cytoplasm and was concentrated in a trail between migrating centrioles and in the mitotic spindle poles and spindle fibers. The centrosome targeting site was determined to reside within the globular tail domain, because centrosome association also was observed in living cells transfected with DNA encoding the tail domain fused with a green fluorescent protein tag, but not in cells transfected with the vector encoding green fluorescent protein by itself.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=21128Documentos Relacionados
- Myosin-V stepping kinetics: A molecular model for processivity
- Anomalous Dynamics of Melanosomes Driven by Myosin-V in Xenopus laevis Melanophores
- Subcellular Localization of Myosin-V in the B16 Melanoma Cells, a Wild-type Cell Line for the dilute Gene
- Administering ascorbic acid to rats undergoing ageing processes: effects on myosin-V immunoreactive myenteric neurons
- The terminal tail region of a yeast myosin-V mediates its attachment to vacuole membranes and sites of polarized growth
