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排序方式: 共有188条查询结果,搜索用时 15 毫秒
1.
V V Sviridov E V Kozhevnikova 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1985,(9):67-70
The immunization of mice with the protein fraction of B. pertussis strain 305 has made it possible to obtain hybridomas producing monoclonal antibodies to B. pertussis antigens. Ascitic fluids containing monoclonal antibodies react in the ELISA in high titers and actively agglutinate B. pertussis strains 305 and 475. 相似文献
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T. S. Serchenya A. G. Pryadko O. V. Sviridov 《Applied Biochemistry and Microbiology》2009,45(3):326-333
Four monoclonal antibodies (mAbs), G6, F9, H8, and B2, against human alpha-1-microglobulin (A1M) have been produced and characterized. The parameters of affinity (Kp ~ 109 M?1), epitope specificity (the additively binding G6/F9, G6/H8, G6/B2, F9/H8, and F9/B2 pairs), and the observed effect of reversibility of structural changes induced by chemical agents allow use of these mAbs in biospecific methods of A1M purification and quantitative determination. The application of mAbs to an A1M enzyme immunoassay (analytical sensitivity—0.5 μg/l) and one step isolation of pure A1M by immunoaffinity chromatography was described. 相似文献
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Z A Bilialov L S Ershova G G Sviridov P N Sokolov V S Arakeliants 《Parazitologiia》1989,23(4):362-364
Biological interrelations between ectoparasites from the colonies of great gerbil were studied experimentally. Hungry fleas Coptopsylla lamellifer are able to feed on the ticks Ornithodoros tartakovskyi infected with plague and in so doing be infected with plague agent. Such feeding is identified as "heterovampirism". 相似文献
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The synthesis of the gluco- and manno-stereoisomers of amphotericin B is described. 相似文献
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Abstract: Fractions of neurospecific S-100 protein were purified from bovine brain and their physicochemical properties were studied. Conformational changes caused by the binding of calcium to S-100 protein fractions were detected by means of differential and fluorescence spectroscopy. Fractions demonstrating opposite shifts of their spectra also differ in the distribution in double-phase system. The number of calcium-binding centers and their association constants were determined by means of equilibrium dialysis and gel filtration. The nature of the differences in the interaction of various S-100 protein fractions with calcium is discussed. 相似文献
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Tomáš Trnka Miloslav Černý Anna Ya. Shmyrina Alexander S. Shashkov Alexander F. Sviridov Oleg S. Chizhov 《Carbohydrate research》1979,76(1):39-44
13C-N.m.r. spectra of all possible 1,6:2,3- and 1,6:3,4-dianhydro-β-D-hexo-pyranoses and their O-acetyl and deoxy derivatives are presented. Relations between chemical shifts of certain carbon atoms and the structure of the dianhydrides are outlined, and their application in structural analysis is discussed. Inversion of configuration of the oxirane ring from the endo to the exo position is associated with typical upfield-shifts for oxirane-ring carbon atoms C-2 or C-4, respectively. Possible inter-relationships between 13C-chemical shifts and steric and polar interactions in the dianhydro derivatives are discussed. 相似文献
8.
Ryunosuke Ohkawa Hann Low Nigora Mukhamedova Ying Fu Shao-Jui Lai Mai Sasaoka Ayuko Hara Azusa Yamazaki Takahiro Kameda Yuna Horiuchi Peter J. Meikle Gerard Pernes Graeme Lancaster Michael Ditiatkovski Paul Nestel Boris Vaisman Denis Sviridov Andrew Murphy Alan T. Remaley Dmitri Sviridov Minoru Tozuka 《Journal of lipid research》2020,61(12):1577
Lipoproteins play a key role in transport of cholesterol to and from tissues. Recent studies have also demonstrated that red blood cells (RBCs), which carry large quantities of free cholesterol in their membrane, play an important role in reverse cholesterol transport. However, the exact role of RBCs in systemic cholesterol metabolism is poorly understood. RBCs were incubated with autologous plasma or isolated lipoproteins resulting in a significant net amount of cholesterol moved from RBCs to HDL, while cholesterol from LDL moved in the opposite direction. Furthermore, the bi-directional cholesterol transport between RBCs and plasma lipoproteins was saturable and temperature-, energy-, and time-dependent, consistent with an active process. We did not find LDLR, ABCG1, or scavenger receptor class B type 1 in RBCs but found a substantial amount of ABCA1 mRNA and protein. However, specific cholesterol efflux from RBCs to isolated apoA-I was negligible, and ABCA1 silencing with siRNA or inhibition with vanadate and Probucol did not inhibit the efflux to apoA-I, HDL, or plasma. Cholesterol efflux from and cholesterol uptake by RBCs from Abca1+/+ and Abca1−/− mice were similar, arguing against the role of ABCA1 in cholesterol flux between RBCs and lipoproteins. Bioinformatics analysis identified ABCA7, ABCG5, lipoprotein lipase, and mitochondrial translocator protein as possible candidates that may mediate the cholesterol flux. Together, these results suggest that RBCs actively participate in cholesterol transport in the blood, but the role of cholesterol transporters in RBCs remains uncertain. 相似文献
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