Voprosy meditsinskoi khimii (ISSN 0042-8809)

Effect of postmortem autolysis on the 40S ribosomal subunit proteins of rat skeletal muscles

   
Shishkin S.S., Kitavtsev B.A., Dabov S.S.
PubMed Id: 7456386
Year: 1980 vol: 26  issue:4  pages: 476-480
Abstract: A ribosomal protein component was impaired during autolysis of 40S subunits, obtained from polysomes of autolysed muscles using KCL-puromycine method. These 40S subunits exhibited higher buoyant density as compared with controls. For the direct analysis the ribosomal proteins were extracted from 40S subunits by 66% acetic acid containing 0.01 M MgCl2 and fractionated using one- and two-dimensional polyacrylamide gel electrophoresis. The data obtained suggest that some proteins were hydrolyzed by proteolytic enzymes during autolysis: assumption of dissociation into the subunits of 6 of the ribosomal proteins during autolysis does not account for the phenomena observed.
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Reference: Shishkin S.S., Kitavtsev B.A., Dabov S.S., Effect of postmortem autolysis on the 40S ribosomal subunit proteins of rat skeletal muscles, Voprosy meditsinskoi khimii, 1980, vol: 26(4), 476-480.
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