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Literature DB >> 5692584

Expansion of the inner membrane compartment and its relation to mitochondrial volume and ion transport.

L Packer, J M Wrigglesworth, P A Fortes, B C Pressman.

Abstract

Glutaraldehyde has been used to fix mitochondria undergoing rapid volume changes associated with energized ion transport under oscillatory state conditions and valinomycin-induced potassium uptake. Fixation was found to prevent structural changes which normally occur during ion accumulation or loss. By correlating packed volume measurements with electron microscopy, it is shown that changes in volume associated with ion movements reflect changes in the inner membrane compartment and that this compartment can be related to the sucrose inaccessible space. The method can therefore be used to accurately determine volume changes that arise from ion translocation.

Entities: Chemical

Mesh：

Substances：

Year: 1968 PMID： 5692584 PMCID： PMC2107527 DOI： 10.1083/jcb.39.2.382

Source DB: PubMed Journal: J Cell Biol ISSN： 0021-9525 Impact factor: 10.539

12 in total

1. Oscillatory states of mitochondria. 1. Electron and energy transfer pathways.

Authors: L Packer; R Utsumi; M G Mustafa
Journal: Arch Biochem Biophys Date: 1966-11 Impact factor: 4.013

2. Effect of transport-inducing antibiotics and other agents on potassium flux in mitochondria.

Authors: E J Harris; G Catlin; B C Pressman
Journal: Biochemistry Date: 1967-05 Impact factor: 3.162

3. Changes of total water and sucrose space accompanying induced ion uptake or phosphate swelling of rat liver mitochondria.

Authors: E J Harris; K van Dam
Journal: Biochem J Date: 1968-02 Impact factor: 3.857

10. Alteration of the conformation of proteins in red blood cell membranes and in solution by fixatives used in electron microscopy.

Authors: J Lenard; S J Singer
Journal: J Cell Biol Date: 1968-04 Impact factor: 10.539

23 in total

Expansion of the inner membrane compartment and its relation to mitochondrial volume and ion transport.

1. Oscillatory states of mitochondria. 1. Electron and energy transfer pathways.

2. Effect of transport-inducing antibiotics and other agents on potassium flux in mitochondria.

3. Changes of total water and sucrose space accompanying induced ion uptake or phosphate swelling of rat liver mitochondria.

4. The swelling and contraction of isolated rat-liver mitochondria.

5. Induced active transport of ions in mitochondria.

6. Volume changes and contractility of mitochondrial and chloroplast membranes.

7. Energetics of potassium transport in mitochondria induced by valinomycin.

8. Oscillatory states of mitochondria. 3. Ultrastructure of trapped conformational states.

9. Osmotic properties of mitochondria.

10. Alteration of the conformation of proteins in red blood cell membranes and in solution by fixatives used in electron microscopy.

1. Mitochondrial morphological changes in mucosal epithelial cells.

2. Variations in mitochondrial size and ultrastructure during germ cell development.

Review 3. Theoretical and practical aspects of glutaraldehyde fixation.

4. [Acute changes in the parietal cortex of the rat after a stab trauma].

5. Ion transport underlying metabolically controlled volume changes of isolated mitochondria.

6. Microwave energy fixation for electron microscopy.

7. Mitochondrial variations in the spinal ganglion cells of the slow loris: an electron microscopic study.

8. Ion movements during energy-linked mitochondrial structural changes.

9. The effects of valinomycin on ion movements across the sarcoplasmic reticulum in frog muscle.

10. Ultrastructural studies on mitochondrial swelling.