Mitotic PtK1 cell microinjected with X-rhodamine-labeled tubulin and Alexa 488-labeled CENP-F antibodies to fluorescently label kinetochore fibers (red) and kinetochores/spindle poles (green), respect...

The JNK phosphatase puckered, whose expression can be reported via a lacZ enhancer trap, is expressed in very low levels in uninjured neurons; however, nerve crush induces a dramatic increase in puc-l...

Anterior and posterior regions of a C. elegans embryo are determined by PAR protein distribution. PAR-2, shown in green marks the posterior region of the embryo and PAR-6, shown in red, marks the ante...

Spinning disk confocal time-lapse imaging of the first mitosis in a C. elegans embryo expressing GFP-KNL-2 (strain OD31) in which KNL-1 has been depleted by RNAi. Discrete foci of GFP signal within th...

The retrograde flow of microtubules oriented perpendicular to the leading edge in the lamellipodium is coupled to the movement of immediately adjacent lamellum f-actin speckles. Primary cultures of n...

Free microtubule sliding in nip100deltaCAP-Gly cnm67delta double mutant cells. Movie plays at 50x real time and is movie S12. Compare with movie S11 (CIL# 23601). Data analysis for movies S11 and S12 ...

Early embryonic divisions in Drosophila are syncytial. Nuclei undergo mitosis synchronously for the first 14 nuclear cycles, followed by cellularization (Foe and Alberts, 1983). At nuclear cycle 10, n...

This movie is of a Drosophila melanogaster early embryo (cycle 12) expressing GFP-tubulin (green) and injected with Rhodamine-labeled histones (red) and 8mg/ml RanT24N, a dominant negative inhibitor o...

Early embryonic divisions in Drosophila are syncytial. Nuclei undergo mitosis synchronously for the first 14 nuclear cycles, in which 6000 nuclei will form, followed by cellularization (Foe and Albert...

The yolk sac of a killifish embryo contains a population of deep cells which migrate through the subepithelial space, and this sequence follows one such cell crawling within the normal matrices and ce...