This 3 panel image displays meiosis in a mouse oocyte triple labelled for microtubules (panel 1 and green), phosphorylated-Transforming Acidic Coiled-Coil protein (TACC3; panel 2 and red), and nuclei...

Distribution of Bib1, BubR1 and Mad2(red) on chromosomes assembled from sperm chromatin in nocodazole treated Xenopus oocyte extracts in vitro. Chromosomes are stained with DAPI (blue). Right panels ...

Effect of depletion of the Nup107-160 nucleoporin on spindles assembled in vitro with sperm chromatin and in Xenopus oocyte extracts. Spindles are labeled with tubulin (red) and chromosomes are staine...

Effect of depletion of Nup133 and Nup43 by antibody addition on spindle assembly on sperm chromatin in Xenopus oocyte extract. Spindles (red) were localized by addition of tubulin-rhodamine and chrom...

Time-lapse microscopy of mouse oocytes injected with a cRNA encoding YFP-TPX2 (targeting protein for Xenopus kinesin-like protein, xklp2), expressed at low levels. Up is the transmitted light and bott...

Time-lapse microscopy of histone-RFP expressing mouse oocytes injected with siCo-5h, a control siRNA. Images were taken every 20 minutes. Times after the resumption of meiotic maturation and germinal ...

Movie shows spindle assembly around DNA-beads in a Xenopus laevis egg extract. DNA beads are autofluorescent, and spindle is formed from exogenous X-rhodamine-labeled tubulin and alexa-488 labeled an...

Early transmission electron micrographs showing pore details in negatively stained preparations of nuclear envelopes. Upper panel shows the pronounced 8-fold symmetry in the closely spaced pores of t...