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Updated: Jun 16, 2026

Measuring Trans-Plasma Membrane Electron Transport by C2C12 Myotubes
Published on: May 4, 2018
Plasma membrane electron transport in frog blood vessels
Rashmi P Rao1, K Nalini, J Prakasa Rao
1Department of Biochemistry, Kasturba Medical College, Manipal 576 104, India.
Abstract:
In an attempt to see if frog blood vessels possess a plasma membrane electron transport system, the postcaval vein and aorta isolated from Rana tigrina were tested for their ability to reduce ferricyanide, methylene blue, and 2,6-dichloroindophenol. While the dyes remained unchanged, ferricyanide was reduced to ferrocyanide. This reduction was resistant to inhibition by cyanide and azide. Heptane extraction or formalin fixation of the tissues markedly reduced the capability to reduce ferricyanide. Denuded aortas retained only 30% of the activity of intact tissue. Our results indicate that the amphibian postcaval vein and aorta exhibit plasma membrane electron transport.
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