摘要

Distribution of Zn, Cu and Mn among thermostable proteins and other components in the digestive gland, gills, and mantle of the bivalve Anodonta cygnea depends on ambient conditions and is tissue-specific. Under the action of copper, its content in high-molecular thermostable proteins increases, which correlates with the changes in their UV spectra. At the same time, the zinc content in non-protein thermostable components increases. In mollusks living in a pond, the content of Mn as part of low-molecular thermostable components increases significantly. An array of metals in metallothioneins remains stable. The content of oxidative modifications of proteins is a sensitive tissue-specific indicator of conditions under which a mollusk exists.