ENGEL'GARDT 100 



investigations of muscle activity, he (with M. N. Lyabimova) 

 was awarded in 1943 a Stalin Prize. 



Engel'gardt's main investigations are devoted to the study of 

 the regularities in the transformation of organic phosphorous 

 compounds in processes of cellular metabolism, their role in 

 the exchange of energy and in the physiological functioning of 

 the cell, the study of the interrelation of energy processes and 

 the mechanical reaction of muscle protein. His investigations 

 aided the establishment of definite ties between chemical phe- 

 nomena in the muscle fiber and its function. Engel'gardt dis- 

 covered the process of aerobic resynthesis of adenosine tri- 

 phosphoric acid. He established that the contracting protein of 

 the muscle, myosin, has the properties of an adenylpyrophos- 

 phatase enzyme and by splitting the adenosine triphosphoric 

 acid, obtains energy for its functioning. Engel'gardt also in- 

 vestigated vitamins, and studied the technology for vitamin 

 production and their quantitative determination. 



As of 1961, Engel'gardt was Chairman of the U.S.S.R. Acade- 

 my of Sciences Presidium Commission on Radiobiology, and 

 Director of the Institute of Radiation and Physico- Chemical 

 Biology of the U.S.S.R. Academy of Sciences. 



In September 1958, he visited the United States to attend the 

 8th General Assembly of Scientific Union in Washington, D. C, 

 and January 1959, he visited the University of California at 

 Berkeley. 

 Bibliography: 



Anerobic disintegration and aerobic resynthesis of pyro- 

 phosphate in red blood cells of birds. Kazan' Med. Zhur., 

 1931, 27, #4-5. 



Reversible and conjugated reactions in the energy ex- 

 change of cells. Izvest. Akad. Nauk S.S.S.R., Ser. Biol., 

 1936, #4. 



and A. P. Barkhash . Oxidizing disintegration of phospha- 

 glucovanillic acid. Biokhimiya, 1938, 3, #4. 

 and M. N. Lyubimova . Adenylpyrophosphatase and myosin 

 of the muscle. Biokhimiya, 1939, Aj #6. 

 Phosphoric acid and functions of the cell. Izvest. Akad. 

 Nauk S.S.S.R., Ser. Biol., 1945, #2. 



with I. M. Seits . Phosphorylization during respiration and 

 the Pasteur effect. Biokhimiya, 1949, 14, #6. 

 and M. N. Lyubimova. On the mechano- chemistry of the 

 muscle. Biokhimiya, 1942, _7, #5-6. 



