Accession Number : AD0658854

Title :   THE INFLUENCE OF MECHANICAL EFFECTS ON ACTOMYOSIN (MECHANICAL EFFECT ON ACTOMYOSIN).

Descriptive Note : Figs. refs. omitted,

Corporate Author : NAVAL MEDICAL SCHOOL BETHESDA MD TRANSLATION SERVICE

Personal Author(s) : Khenokh,M. A. ; Aleksandrova,V. N.

Report Date : 08 AUG 1967

Pagination or Media Count : 10

Abstract : It is shown that slight exposures to an ultra sound field produces in actomyosin solutions a number of essential changes, to wit: irreversible drop of ATP-phasic activity; decrease in SH-group content, diminution of characteristical viscosity and of molecular weight. The effect of deep freezing (-196C) results in precipitation of portion of protein. At the same time, in the remaining liquid phase, the ATP-phasic activity and the SH-group content are practically unchanged. The characteristical viscosity increases under the effect of freezing, whereas the molecular weight drops. The ultra sound effect causes changes in the primary and, probably, also in the secondary structure of actomyosin. On the other hand, the effect of cold, apparently, does not affect the primary structure of protein and, in contrast to the effect of the ultra sound, produces increased general asymmetry of the macromolecules. (Author)

Descriptors :   (*PROTEINS, MECHANICAL PROPERTIES), (*ANTIBIOTICS, MECHANICAL PROPERTIES), ULTRASONIC PROPERTIES, FREEZING, MOLECULAR STRUCTURE, CHEMICAL PROPERTIES, VISCOSITY, MOLECULAR ASSOCIATION, CHEMICAL PRECIPITATION, USSR

Subject Categories : Biochemistry
      Pharmacology

Distribution Statement : APPROVED FOR PUBLIC RELEASE