Study of three-dimensionally ordered structures of intact mitochondria by small-angle neutron scatteringстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The ultrastructure of cristae of intact mitochondria, in which the activity of the oxidative phosphorylation
system was retained, was investigated by small-angle neutron scattering. Osmotic swelling of
organelles was found to cause ultrastructural rearrangements of the inner mitochondrial membrane in rat liver
and heart mitochondria. This process was accompanied by the appearance of diffraction peaks indicative of the
formation of ordered structures. The lamellar packing of the membranes in heart mitochondria, which is
observed under normal conditions, was found to undergo a transition to a nonlamellar hexagonal packing,
whose scattering curve shows two peaks with the scattering vectors characterized by a spacing ratio of 1 : .
The electron-microscopy results confirm the possibility of the formation of a hexagonal packing of the inner
membrane in heart mitochondria