Immunofluorescence images used to investigate stabilization of microtubules (MTs) by Von Hippel-Lindau tumor suppressor protein (pVHL). VHL-deficient RCC-4 cells with empty vector have a lower alpha-t...

This video shows the apical (outside-facing) side of epithelia cells that form confluent tissues where each cell is tightly glued to its neighbors by circumferential junctions like bands of velcro. T...

Actin dynamics in a Rac1(Q61L)-expressing PtK1 cell injected with Pak inhibitory fragment PBD/ID(H83L). Fast retrograde flow still occurs in the lamellipodium, but the width of the lamellipodium is re...

Confocal micrograph showing Shigella bacteria (pink) invading the intestinal lining. The bacteria infects the cells by high-jacking the cell's internal actin skeleton (green) to facilitate its entry i...

Fluorescently-labeled actin from chicken muscle. Actin is a protein involved in muscle contraction and cell movement. Purified actin can form loose bundles that self-organize into regular patterns...

This video shows stationary epidermal cells with copious retrograde flow of actin. Actin-myosin networks initiate at the cell periphery and flow towards the cell body. Even though actin-nucleation and...

Actin dynamics in a Rac1(Q61L)-expressing PtK1 cell. Fast retrograde flow occurs in the lamellipodium and slow retrograde flow in the lamellum. The cell was microinjected with X-rhodamine-conjugated a...

Time lapse movie showing the change in microtubule distribution in cultured porcine kidney epithelial cells (LLCPK1) stably expressing GFP-alpha tubulin during the progression from prophase to prometa...

The movie shows, in real time, the explosive acrosomal reaction of Thyone (sea cucumber) sperm. The field shows several sperm heads (bright contrast) with tails of some in the plane of focus. From the...

Time series stack of LLCPK cells stably expressing GFP-EB1, a microtubule tip binding protein. GFP-EB1 fluorescence is seen in microtubules and centrosomes which appear to act as microtubule nucleatio...