Rabbit psoas skeletal muscle fibers were held at constant length and rigor induced by immersion in glycerol. The fibers were quick-frozen by contact with a liquid helium- cooled copper block in a Heu...

Rabbit psoas skeletal muscle fibers were held at constant length and rigor induced by immersion in glycerol. The fibers were quick-frozen by contact with a liquid helium- cooled copper block in a Heu...

The image shows a nucleus extracted from the brain of an old (29 month) rat and immuno-stained for tubulin (green)and nuclear pore complexes (red). DNA was stained with DAPI (blue). The intra-nuclear...

CHO cells were arrested in metaphase with colcemid, swollen in 75mM KCl, fixed, disrupted, and observed using High Voltage EM. This image was recorded with a specimen tilt angle of 46 degrees. Grouped...

CHO cells were arrested in metaphase with colcemid, swollen in 75mM KCl, fixed, disrupted, and observed using High Voltage EM. This image was recorded with a specimen tilt angle of 52 degrees. Grouped...

Quick-freeze deep-etch image of a cytosolic region where trichocysts are developing. Vesicles, even small ones, contain contents that are compacting into paracrystalline form. These vesicles seem to h...

Freeze-fracture image of a barley (Hordeum vulgare) chloroplast from a mutant lacking chlorophyll b illustrating the changes from wildtype in particle distribution on the four types of cleaved thyla...

High magnification freeze-fracture image of a barley (Hordeum vulgare) chloroplast from a mutant lacking chlorophyll b illustrating the changes from wildtype in particle distribution on the PFs and ...

Isolated chloroplast membranes of the unicellular photosynthetic alga Chlamydomonas reinhardtii were cryofixed, freeze-fractured, and surface replicas observed by transmission electron microscopy. The...

Gallery of transmission electron micrographs of ribosomes purified from a rat liver homogenate by sucrose gradient centrifugation, and negatively stained with uranyl acetate. The gallery illustrates t...