Scanning electron micrograph of a Vaginicola, a single-celled creature found in pond water. The cell (green) secretes and lives within a protective casing called a lorica into which it can contract. ...

Side view of Vaginicola, a single-celled creature found in pond water. The cell (green in the bottom image) secretes and lives within a protective casing called a lorica into which it can contract. Th...

Images of negatively stained chromatin fibers prepared from tandem arrays of a nucleosome positioning sequence reconstituted with purified histones. These samples contained 61 repeats of a 197 bp DNA ...

Movie shows actin cytoskeleton in Nck-deficient cells rescued with Nck1 after stimulation with PDGF-B. In the presence of Nck1, PDFG-B stimulation induced highly dynamic peripheral membrane ruffling. ...

Movie shows actin cytoskeleton in Nck-deficient cells rescued with Nck1 after stimulation with PDGF-B. In the presence of Nck1, PDFG-B stimulation induced, in addition to peripheral ruffles, very noti...

High resolution image of an isolated and longitudinally fractured cilium exposing the middle of the cilium. The spokes extend from the doublets toward the two singlet microtubules. These spokes are sp...

Images of negatively stained chromatin fibers prepared from tandem arrays of a nucleosome positioning sequence reconstituted with purified histones. These samples contained 80 repeats of a 167 bp DNA ...

High resolution overview of Opercularia coarctata with macronucleus, cytoplasm, and section of the oral area. Specialized rough endoplasmic reticulum with modification into decorated tubules that lie ...

Images of negatively stained chromatin fibers prepared from tandem arrays of a nucleosome positioning sequence reconstituted with purified histones together with the results of Monte Carlo simulations...

Movie shows actin cytoskeleton in Nck-deficient cells after stimulation with PDGF-B. In the absence of Nck proteins, prominent actin bundles and the almost complete absence of membrane ruffles even af...