COORDINATIVE COMPOUNDS OF ZINC WITH N-SUBSTITUTED THIОCАRBАMОIL-N?-PENTАMETHYLЕNSULFENАMIDES – ACTIVITY MОDIFIERS OF ЕNZYMES OF PROTEOLYTIC AND GLYCOLYTIC ACTION
1Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, Кiev;
2Mechnikov Оdеssa National University, Ukraine
The influence of a number of coordinative compounds of zinc with N-substituted thiocarbamoil-N?-pentamethylensulfenamides on activity of elastase, ?-L-rhamnosidase and ?-galactosidases evidence for a possibility of their usage as stimulators or inhibitors of enzymes tested have been studied. It was shown that all the compounds in concentration of 0.1 and 0.01% inhibited by 90–100% Bacillus thuringiensis 27-88Els+ elastase activity. [Zn(L2)Br2], [Zn(L1)(NCS)2] and [Zn(L3)(NCS)2] at 20 h exposition activated Cryptococcus albidus 1001 ?-L-rhamnosidase activity. The rest of compounds influenced it on the control level or inhibited it by 7–23%. The obtained results testify that essential role is not played by separate fragments (L-ligand and anions), but by molecules of zinc complexes as a whole. All the studied complexes, exept for [Zn(L3)(NCS)2], induced ?-L-rhamnosidase activity of Еupenicillium erubescens 248 (7 to 60%). All zinc compounds (concentration 0.01%, exposition time – 60 min) influenced at the control level Aspergillus niger and Cladosporium cladosporioides ?-galactosidases activity, however inhibited (up to 20%) activity of Penicillium canescens ?-galactosidase. The increasing of exposition time of the compounds tested with enzymes up to 20 h testify to selective action of separate compounds on enzymes tested. The data obtained prove, that the character of interaction of zinc complexes is changed depending on the enzyme tested and its strain-producer.
Кey words: Bacillus thuringiensis 27-88Els+ elastase, Cryptococcus albidus 1001 and Еupenicillium erubescens 248 ?-rhamnosidase, Aspergillus niger, Cladosporium cladosporioides, Penicillium canescens ?-galactosidases, zinc coordinative compounds.
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