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Cell Process
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Center for Research in Biological Systems
University of California, San Diego
9500 Gilman Drive
La Jolla, CA 92093-0608, USA
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Search Results for
freeze_fracture/freeze_etch
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CIL:40503
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
mitochondrion organization
Cellular Component
mitochondrion
Quick-freeze deep-etch image of an unfixed and fractured mitochondrion. The tubular cristae average 50nm in diameter. Each cristae bears a helically arranged double row of particles with the particles...
CIL:40507
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
cytoplasmic microtubule organization
Cellular Component
transport vesicle
Details of the binding of the carrier vesicle to a microtubule. Four bridges, thought to be cytoplasmic dynein arms, span the 40nm space between these two structures. The membrane of the vesicle has b...
CIL:40562
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
digestive system process
Cellular Component
early phagosome
The carrier vesicles dock with the acidosomes and then fuse with these larger vesicles before or as the vesicles dock at the nascent Digestive Vacuole. Thus the contents of the carrier vesicles are fi...
CIL:12346
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
plasma membrane organization
Cellular Component
plasma membrane
The plasma membrane of Paramecium multimicronucleatum seen in a freeze fracture replica. The two rows of IMPs can be seen on the P-face of the plasma membrane that connects the plasma membrane to the ...
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:21996
NCBI Organism Classification
Paramecium multimicronucleatum
Biological Process
plasma membrane organization
Cellular Component
plasma membrane
The plasma membrane of Paramecium multimicronucleatum seen in a freeze fracture replica. The two rows of IMPs can be seen on the P-face of the plasma membrane that connects the plasma membrane to the ...
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...
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