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PECULIARITIES OF UNCONNECTED RESPIRATION IN MITOCHONDRIA AND ITS COMPARISON WITH PHOSPHORATE RESPIRATORY

Abstract

In this work, respiratory processes not associated with the synthesis of phosphorylated and ATP in various tissues of warm-blooded laboratory animals were studied.  In particular, the oxidation of various substrates in tissue mitochondria is relatively organized.  The material also provides information that, in contrast to NAD-dependent substrates, during the oxidation of succinate, a high oxidation rate is observed mainly in the V4 state, and the phosphorylation rate is V3.  In addition, it is assumed that one of the possible reasons for the high rate of ADP-independent respiration during oxidation may be the presence in mitochondria of an uncoupled respiratory chain that does not work together with ATP synthesis.

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References

  1. . Skulachev V.P. Stories about bioenergetics // M.; Young Guard, 1982. - P.191
  2. Skulachev V.P. Laws of bioenergetics // Soros educational journal. - 1997. - Issue 1. - P. 9-14.
  3. Blanchaer M.C. Respiration of mitochondria of red and white skeletal muscle // Amer. J Physiol. - 1964. - V. 206, No. 5. – P.1015-1020.
  4. Rusmussen U.F. The oxidation of added NADH by intact heart mitochondria. // FEBS Letters. - 1969. - V.2, No. 3. – P.157-161.
  5. Rusmussen U.F., Rusmussen H.N. The NADH oxidase (external) of muscle mitochondria and its role in the oxidation of cytoplasmic NADH // J.Biol.Chem. - 1985. - V. 229, No. 3. – P.631-641.
  6. Von Korff R. W. Factors affecting the respiratory control ratio of rabbit heart mitochondria // J. Biol. Chem. - 1967. -V.242. – P.318.
  7. Lehninger A. Mitochondria. // M.; World. - 1966. - P.167
  8. Skulachev V.P. Stories about bioenergetics // M.; Young Guard, 1982. - P.191
  9. Ivanov K.I. Bioenergetics and temperature homeostasis // L.: Nauka. -1972. - P.172.
  10. Liang Z., Yan H., Min D. Farm animals for studying muscle development and metabolism: dual purposes for animal production and human health // J. Anim. front. - 2019. - V.9, No. 3. – P.21–27