scholarly journals Functional Disorders of the Oxidative Phosphorylation System in the Heart Mitochondria of Mice with Juvenile Visceral Steatosis

2003 ◽  
Vol 26 (3) ◽  
pp. 289-294 ◽  
Author(s):  
Midori Suenaga ◽  
Naokatu Arakaki ◽  
Kayoko Morokami ◽  
Toshiki Himeda ◽  
Hirofumi Shibata ◽  
...  
Keyword(s):  
Oxidative Phosphorylation ◽  
Heart Mitochondria ◽  
Functional Disorders ◽  
Oxidative Phosphorylation System

The Hypoxia Signal as a Potential Inducer of Supercomplex Formation in the Oxidative Phosphorylation System of Heart Mitochondria

BIOPHYSICS ◽  
2018 ◽  
Vol 63 (4) ◽  
pp. 549-560
Author(s):  
I. M. Byvshev ◽  
T. N. Murugova ◽  
A. I. Ivankov ◽  
A. I. Kuklin ◽  
I. M. Vangeli ◽  
...  
Keyword(s):  
Oxidative Phosphorylation ◽  
Heart Mitochondria ◽  
Oxidative Phosphorylation System

scholarly journals Oligomeric hypercomplex of the complete oxidative phosphorylation system in heart mitochondria

2020 ◽  
Author(s):  
S.V. Nesterov ◽  
Yu.M. Chesnokov ◽  
R.A. Kamyshinsky ◽  
A.A Panteleeva ◽  
K.G. Lyamzaev ◽  
...  
Keyword(s):  
Energy Dissipation ◽  
Oxidative Phosphorylation ◽  
Electron Tomography ◽  
Heart Mitochondria ◽  
Supramolecular Architecture ◽  
Oxidative Phosphorylation System ◽  
Cryo Electron Tomography ◽  
Rat Heart Mitochondria ◽  
Without Energy Dissipation ◽  
Atp Synthases

AbstractThe existence of a complete oxidative phosphorylation system supercomplex including both electron transport system and ATP synthases has long been assumed based on functional evidence. However, no conclusive structural confirmation has been obtained. In this study cryo-electron tomography was used to reveal the supramolecular architecture of the rat heart mitochondria cristae. We show that rows of respiratory chain supercomplexes are connected with rows of ATP synthases forming the oligomeric hypercomplex. The discovered hypercomplexes may increase the effectiveness of oxidative phosphorylation ensuring a direct proton transfer from pumps to ATP synthase along the membrane without energy dissipation.

scholarly journals Dextran strongly increases the Michaelis constants of oxidative phosphorylation and of mitochondrial creatine kinase in heart mitochondria

1998 ◽  
Vol 254 (1) ◽  
pp. 172-180 ◽  
Author(s):  
Frank Norbert Gellerich ◽  
Fanny Dorine Laterveer ◽  
Bernard Korzeniewski ◽  
Stephan Zierz ◽  
Klaas Nicolay
Keyword(s):  
Creatine Kinase ◽  
Oxidative Phosphorylation ◽  
Heart Mitochondria ◽  
Mitochondrial Creatine Kinase ◽  
Michaelis Constants
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