EFFECT OF ENVIRONMENTAL-POLLUTION ON THE FRACTIONAL COMPOSITION OF LOW-MOLECULAR-WEIGHT PEPTIDES FROM DIFFERENT TISSUES OF THE WHITEFISH

The composition of peptides with molecular mass below 10 kDa was studi ed by column chromatography on Toyopearl HW-40F in the liver of whitef ish (Coregonus lavaretus) caught in the Kola Peninsula water bodies wi th different degree of pollution, as well as in the whitefish larvae t reated with the mining-concentration plant sewage al different dilutio ns. Contamination of water bodies with the mining-concentration plant sewage leads to quantitative changes in the fractions of peptides resu lting in the increased proportion of components absorbing at 250 nm. A conclusion was drawn that the whitefish tissues contain metallothione ine-like low molecular weight oligopeptides.