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Center for Research in Biological Systems
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University of California, San Diego
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Search Results for
freeze_fracture/freeze_etch
(399 results)
CIL:36677
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
organelle organization
Cellular Component
trichocyst
A fracture of an apparently fully formed trichocyst showing that the body of paracrystalline material fills the organelles lumen and is bound to the membrane by a loose array of threads. The membrane,...
CIL:36686
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
positive regulation of organelle organization
Cellular Component
trichocyst
The tip of the trichocyst does not expand but remains nail shaped and remains bound to the elongated shaft. TEM taken on 6/7/88 by C. Schroeder with Zeiss 10A operating at 80kV. Neg. 19,800X. Bar = 0....
CIL:36643
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
organelle organization
Cellular Component
crystalloid
QF-DE of a crystal whose P-fracture face shows many IMPs similar to the P-face of an acidosome lying nearby and trichocyst as well as trichocyst precursor vesicles. TEM taken by C. Schroeder on 6/3/8...
CIL:36673
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
organelle assembly
Cellular Component
trichocyst
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...
CIL:36642
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
cytoplasm organization
Cellular Component
crystalloid
Quick-freeze deep-etch image of a crystal. The contents of the crystal have condensed into paracrystalline planes that break into angular chunks when fractured. A portion of the P-fracture face of the...
CIL:39320
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
endomembrane system organization
Cellular Component
pellicle
Views of a striated band linked to the epiplasm on the ridge slopes and the intermembrane space between the plasma membrane and alveolus space inside the alveolus. TEM taken on 6/6/91 by C. Schroeder ...
CIL:12036
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
axonemal dynein complex assembly
Cellular Component
axonemal dynein complex
A segment of the edge of the axoneme showing the outer axonemal dynein arms that extend from the A-subfiber of a doublet to bind to the B subfiber of the adjacent doublet. TEM taken on 4/21/88 by C. S...
CIL:12633
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
early endosome to Golgi transport
Cellular Component
clathrin coat of endocytic vesicle
A high resolution of a quick-freeze deep-etch rotary shadowed replica of a parasomal sac from which a clathrin-coated preendosomal vesicle has pinched off. The typical clathrin cage structure is prese...
CIL:21615
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
cortical cytoskeleton organization
Cellular Component
cell cortex
A view of an early endosome with at least two coated evaginations showing, lies next to the proximal end of a fractured basal body. Other clathrin cages may indicate other evaginations from the same e...
CIL:21666
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
cytoplasm organization
Cellular Component
cytoplasm
A clump of at least seven small clathrin cages that are probably connected to an early endosome (below the fracture plane). The morphology of these cages shows a tighter packing than the larger clathr...
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