The dividing macronucleus may be porous to microtubules. Segments of microtubules are found both outside and inside the nuclear envelope in this figure although one cannot follow a single microtubule ...

A rare micrograph of the contractile vacuole and intact contractile vacuole pore membrane of Euplotes. Close examination at high magnification reveals the organization of microtubules lining the pore ...

To study the molecular mechanism by which nonmuscle myosin II (MII) regulates protrusion and adhesion dynamics in migrating cells, NIH3T3 cells were treated with scrambled siRNA (Scr) for 2 days, trea...

To study the molecular mechanism by which nonmuscle myosin II (MII) regulates protrusion and adhesion dynamics in migrating cells, NIH3T3 cells were treated with βPIX-specific siRNA for 2 days, treat...

A confocal Z-stack from a transgenic Drosophila expressing the kinesin-5 motor KLP61F-GFP embryo during prometaphase phase 1. KOP61-F is required to prevent prometaphase spindle collapse driven by t...

Dynamics of spindle microtubules and chromosomes during cycle 11 in a transgenic Drosophila embryo expressing GFP-tubulin (green) and histone-RFP (red). Only a single confocal plane containing the cen...

A confocal 4D-stack from Cycle 11 in a transgenic Drosophila embryo expressing gfp-tubulin (shown in green) and histone-rfp (shown in red). This image is original data contributing to Fig. S1. "Spindl...

To study the molecular mechanism by which nonmuscle myosin II (MII) regulates protrusion and adhesion dynamics in migrating cells, NIH3T3 cells were treated with scrambled siRNA (Scr) for 2 days, trea...

To study the molecular mechanism by which nonmuscle myosin II (MII) regulates protrusion and adhesion dynamics in migrating cells, NIH3T3 cells were treated with βPIX siRNA for 2 days, treated with b...

HeLa cells at last stage of cytokinesis were fixed and stained with microtubules (green), PRC1 (red), and KIF4A (blue). PRC1 and KIF4A colocalized on midbody in the center of intracellular bridge and ...