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I. A. Parfenov T. A. Revina P. P. Pashkovsky N. L. Radyukina T. A. Valueva 《Applied Biochemistry and Microbiology》2011,47(4):361-365
Product of polymerase chain reaction designated as PKPIJ-B was isolated after amplification from genomic DNA of potato (Solarium tuberosum L., Zhukov Jubilee cultivar) using the designed primers. Nucleotide sequence of PKPIJ-B was determined and amino acid sequence of protein was restored. Analysis of this sequence has allowed us to suggest that
isolated gene fragment encodes chymotrypsin and trypsin inhibitor protein (PKCI-23 potato Kunitz-type chymotrypsin inhibitor)
of potato tubers. 相似文献
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V M Podboronov V M Bondarenko I M Grokhovskaia T V Zhuravleva T A Revina 《Antibiotiki》1978,23(8):726-731
The cytotoxic effect on Argasidae lysozyme was shown on a model of cell line HEp-2 in comparison to egg lysozyme. The lysozyme was obtained from homogenates of Ornithodoros papillipes of subfamily Ikodoidea. The lysozyme in concentrations of 300 and 500 gamma/ml had a cytotoxic effect, while in doses of 50 and 100 gamma/ml it has no such activity. The cells of line FL were not sensitive to the above concentrations of the lysozyme. In concentrations of 500 gamma/ml and higher the egg lysozyme had an analogous cytotoxic effect on the cells of line Hep-2. The comparative study of the cariogrammes of the cell monolayer treated with the Argasidae and egg lysozymes, as well as the study of the level of 3H-thimidine incorporation into the cell DNA showed the absence of the preparations effect of the mitotic activity of the cells and DNA synthesis by them. 相似文献
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Revina LP Zalunin IA Krieger IV Tulina NM Wojciechowska YA Levitin EI Chestukhina GG Stepanov VM 《Biochemistry. Biokhimii?a》1999,64(10):1122-1127
The strain B-1166 differs from the other strains of Bacillus thuringiensis ssp. finitimus because it has two crystal types with different localization in the sporulating cell, i.e., inside and outside of exosporium membrane. Two dissociants of the strain were obtained containing only one of the crystal types. The initial strain produces at least three various delta-endotoxins (Fin2, Fin3, and Fin5) differing from all other known entomocidal proteins; Fin2 and Fin3 are similar to each other but differ from Fin5. Both crystal types contain the same endotoxins (Fin2, Fin3, and Fin5). In the B-1166 strain the site of crystal deposition is not determined by their protein composition. 相似文献
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The dynamics of pathological changes in the intestine of Aedes aegypti larvae under the influence of toxins Cry11A and Cry4B produced by Bacillus thuringiensis israelensis was studied by means of electron microscope. Most significant ultrastructure changes in the intestine of the second instar larvae were observed in the midgut. The cytoplasm of cells disintegrated, and elongated lacunae appeared. The number of microvilli decreased, or they disappeared in the result of destruction. The peritrophic membrane displaced to the lumen of midgut. Any changes in epithelial cells and cuticle in time of foregut and hindgut were not observed in a comparison to control. The toxin Cry4B caused the most effective destruction of the midgut epithelium. 相似文献
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Valueva TA Revina TA Gvozdeva EL Gerasimova NG Ozeretskovskaia OL 《Bioorganicheskaia khimiia》2003,29(5):499-504
Mechanical damage or infection of potatoes with Phytophthora infestans caused an accumulation of only serine protease inhibitors in exudates of potato tubers. Among them, proteins prevailed that are structurally similar to those present in healthy tubers: a 22-kDa trypsin inhibitor, a 21-kDa serine protease inhibitor consisting of two polypeptide chains, and a 8-kDa potato chymotrypsin I inhibitor produced de novo. The accumulated proteins inhibited the growth of hyphae and germination of zoospores of P. infestans. Treatment with elicitors, jasmonic and arachidonic acids, intensified the accumulation of these inhibitors in tubers in response to the wound stress, whereas salicylic acid blocked this process. These results suggest that the lipoxygenase metabolism plays a substantial role in signal transduction of the protective system of resting potato tubers. 相似文献
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The incidence of leukoses upon long-term administration of tritium oxide to Wistar rats increased by 15.6% as compared to 2.1% in controls. The repeated injection of bacterial lipopolysaccharide caused a 2.3-fold increase in the occurrence of hemoblastosis induced by the radionuclide mainly due to the increase in the proliferative activity of haemopoietic precursors because of the increased demand for mature cells. 相似文献
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