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Cell Process
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Microbial
Alzheimer's
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University of California, San Diego
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Search Results for
electron density
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CIL:36750
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
digestive system process
Cellular Component
food vacuole
Quick-freeze deep-etch image of a DV-III containing paracrystalline sheets in its lumen. The sheets have parallel rows of subunits spaced at 20nm center-to-center but the chemical nature of the sheets...
CIL:39315
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
plasma membrane organization
Cellular Component
plasma membrane
In this image a portion of the true surface of the plasma membrane is exposed where the culture medium has been etched away. The IMPs of the plates can also be viewed less distinctly on the true surfa...
CIL:40504
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
mitochondrion organization
Cellular Component
mitochondrial membrane
Isolated mitochondria that have been quick-frozen, fractured and deep-etched show some space between the inner and outer membranes. Arcs of tubules, where they are tangentially fractured, show the hel...
CIL:833
NCBI Organism Classification
Oryctolagus cuniculus
Biological Process
skeletal muscle contraction
Cellular Component
cytoskeleton
Purified rabbit skeletal muscle myosin in 0.6M KCl was deposited onto mica flakes, quick-frozen by contact with a liquid helium- cooled copper block in a Heuser-type cryopress, and freeze-etched in a ...
CIL:21652
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
cilium movement
Cellular Component
microtubule basal body
Cross fracture of cilia of the quadrulus. The basal body/cilium complexes are a little less tightly packed than in the peniculus. There are four or five rows of parasomal sacs interspersed with basal...
CIL:36718
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
vesicle fusion
Cellular Component
vesicle membrane
Quick-freeze deep-etch images show a more three dimensional view of acidosomes surrounding a phagosome. Acidosomes are unique in that they contain indentations of their membrane. The lumen has a honey...
CIL:36719
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
membrane docking
Cellular Component
early phagosome
A high magnification view of the intimate docking of acidosomes with the phagosome is particularly apparent where the P-face of the acidosome lies against the E-face of the phagosome. Numerous large I...
CIL:36730
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
digestive system process
Cellular Component
vesicle membrane
Higher magnification of a QF-DE image of an acidosome with a large inward indentation of its membrane. The fractured P-face of the indentation shows many large IMPs. The acidosome lumen is honeycombed...
CIL:36715
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
vesicle fusion
Cellular Component
early phagosome
The cytopharynx/nascent digestive vacuole (phagosome) has an E-fracture face containing a high number of IMPs. Interestingly these IMPs are sometimes organized into plaques where there are several sho...
CIL:36614
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
plasma membrane organization
Cellular Component
plasma membrane
In addition to plates the plasma membrane contains IMPs on its P-fracture face in ring or parenthesis shape at sites of trichocyst secretion. A ring actually consists of two circles of IMPs and signif...
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