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301. http://www.enzyme.chem.msu.ru/ryabov/pdf/O_98.pdf
... Chem. ... 3) Omae, I. Chem. ... The 1H NMR spectra were consistent with their formulation as a pair of racemic diastereomeric cycloplatinated compounds with different orientations of the sulfoxide ligand with respect to the iron and/or nonmetalated cyclopentadienyl ring; i.e., the sulfoxide phenyl ring was directed toward and opposite the C5H5 ring in the cases of 2 and 3, respectively. ... IR (KBr, cm-1): cis-[PtCl2(racSOMePh)2] 1145 and 1155; cis-[PtCl2(S-SOMeC6H4Me-p)2] 1150 (s, sh, SdO). ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/O_98.pdf -- 82.0 Кб -- 02.08.2000
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302. http://www.enzyme.chem.msu.ru/ryabov/pdf/JPOC_99.pdf
... Chem. 12, 357363 (1999) Imine exchange in O-aryl and O-alkyl oximes as a base reaction for aqueous `dynamic' combinatorial libraries. ... The basic reaction that can be used for reversible exchange of building blocks Y in O-substituted oximes is depicted in Scheme 1. ... The above results, combined with the kinetics of the imine exchange, support the proposal that the formation of the hydrated oxime 9 is rate limiting in both imine exchange with aryloxymine and the hydrolysis reactions. ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/JPOC_99.pdf -- 84.0 Кб -- 26.07.2000
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303. http://www.enzyme.chem.msu.ru/ryabov/pdf/CEJ_98.pdf
... Chem. ... 28] A. D. Ryabov Figure 2. a) Steady-state rate of HRP-catalyzed oxidation of (R,S)-1 as a function of pH : [1] 8 б 10ю4 m , [H2O2] 2 б 10ю4 m , [HRP] 10ю7 m, 25 8C. b) Effects of pH on the HRP enantioselectivity in terms of kR/kS ratio for HRP-catalyzed oxidation of 1 versus solution pH : [H2O2] 2 б 10ю4 m , [HRP] 10ю7 m, 25 8C. HPR-catalyzed oxidation of (R)- and (S)-1 by H2O2 : Compound 1 is soluble in water at pH b 6, that is, when the acid is deprotonated.[ ... 5 Figure 1. ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/CEJ_98.pdf -- 239.0 Кб -- 26.07.2000
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304. http://www.enzyme.chem.msu.ru/ryabov/pdf/CEJ_99.pdf
... Monoamidated conjugate 1 was loaded into the apoenzyme of horseradish peroxidase (HRP) to afford an electrochemically and catalytically active reconstituted enzyme Fc-HRP with remarkably altered substrate spe[a] Lo Gorton, [b] and Elisabeth CsЖregi [c] cificity. ... 35] Reconstitution of apo-HRP with ferrocene-modified hemin chloride 1: Apo-HRP was prepared according to an acidic methyl ethyl ketone procedure of Teale.[ ... The loading of 1 into apo-HRP is strongly supported by UV/Vis spectroscopy. ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/CEJ_99.pdf -- 260.0 Кб -- 26.07.2000
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305. http://www.enzyme.chem.msu.ru/ryabov/pdf/Angew_99.pdf
... Chem. ... Also, an attractive feature of ruthenium complexes of the type cis-[Ru(LL)2Cl2] (LL bpy or phen-type ligands) is associated with their ability to coordinate monodentate nitrogen donor ligands like pyridine or imidazole (Q) [Eq. (1) ] . ... There are only weak signals from ruthenium coordinated to glucose oxidase in the absence of d -glucose at 350 and 324 mV for Ru(phen)-GO and Ru(bpy)-GO, respectively, at a scan rate of 10 mV sю1 (traces a). ... Figure 3. ... 4] A. Heller, J. Phys. Chem. ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/Angew_99.pdf -- 125.0 Кб -- 26.07.2000
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306. http://www.enzyme.chem.msu.ru/ryabov/pdf/JACS_00.pdf
... Chem. ... 9, 125820 Moscow, Russia ReceiVed December 13, 1999 Abstract: Orthometalated aryl oxime complexes cis-(C,S)-[PtII(C6H3-2-CMedNOH-5-R)Cl(Me2SdO)] (1, R ) H (a), MeO, Me, F, and Cl) undergo deoxygenation of dimethyl sulfoxide ( DMSO ) in methanol in the presence of HCl to afford the Pt(IV) dimethyl sulfide complexes fac-[PtIV(C6H3-2-CMedNOH-5-R)Cl3(Me2S)] (2), the composition of which was confirmed by an X-ray structural study of 2a. The mechanism ... AlexandroVa et al. complexes. ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/JACS_00.pdf -- 306.0 Кб -- 24.07.2000
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307. Импакт-факторы журналов
... Предлагаем Вашему вниманию импакт-факторы некоторых журналов за 1998 ГОД . ... импакт-факторы научных журналов за 1994-98 г.г. Но, СРАЗУ предупреждаем, что там довольно много ошибок. ... ACTA BIOTECHNOL . ... ANAL BIOCHEM . ... ANNU REV CELL DEV BI . ... BIOL CHEM . ... CELL MOL BIOL . ... CRIT REV BIOCHEM MOL . ... CURR BIOL . ... 3.4 . CURR OPIN CELL BIOL . ... CURR OPIN CHEM BIOL . ... CURR OPIN STRUC BIOL . ... J CELL BIOCHEM . ... MOL BIOL CELL . ... MOL CELL BIOL . ... NAT BIOTECHNOL . ...
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Ссылки http://www.enzyme.chem.msu.ru/informat/impact_factor.htm -- 75.7 Кб -- 14.07.2000
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308. Публикации кафедры по годами
ПУБЛИКАЦИИ СОТРУДНИКОВ . КАФЕДРЫ ХИМИЧЕСКОЙ ЭНЗИМОЛОГИИ . в 1990-99 г.г. ВНИМАНИЕ!! ... Для составления более полного списка просим сотрудников кафедры предоставить недостающие публикации в виде файла, используя формат, по которому представлены ссылки. Файлы можно присылать по электронной почте по следующим адресам: vit@enz.chem.msu.ru или lad@enz.chem.msu.ru . ГОД . Количество публикаций . 1999 . ... 1990 . ... 1998-2000 Кафедра Химической Энзимологии, Химический Факультет . ...
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Ссылки http://www.enzyme.chem.msu.ru/informat/public_year_r.htm -- 8.8 Кб -- 28.06.2000
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309. Tetrahedron Letters : A Novel, Efficient Regenerating Method of NADPH Using a
Tetrahedron Letters . ... A Novel, Efficient Regenerating Method of NADPH Using a New Formate Dehydrogenase . ... A NADPH regenerating system using a new, protein engineered formate dehydrogenase (FDH) is investigated. The new enzyme is the first known NAD(P)H dependent FDH. It can be successfully employed in synthesis with other enzymes requiring a NADPH regeneration. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/TetrahedrLet_96_37_1377.html -- 4.8 Кб -- 28.06.2000
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310. Tetrahedron: Asymmetry : Synthesis of chiral epsilon-lactones in a two-enzyme
Tetrahedron: Asymmetry . ... Synthesis of chiral -lactones in a two-enzyme system of cyclohexanone mono-oxygenase and formate dehydrogenase with integrated bubble-free aeration . ... A two-enzyme system consisting of a cyclohexanone mono-oxygenase from Acinetobacter NCIMB 9871 and a protein-engineered formate dehydrogenase for the regeneration of the cofactor NADPH was used for the synthesis of chiral -lactones. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/TetrahedrAsym_97_8_2523.html -- 5.1 Кб -- 28.06.2000
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311. Article
... Application of computer methods allowed us to demonstrate that plant peroxidases and auxin-binding proteins contain structurally similar fragments. The mapping of the fragments was done using a model structure of horseradish peroxidase. Five of six structurally similar fragments belong to the distal domain and form a subdomain in plant peroxidases that includes the distal heme-coordinating sequence, LHFHDC (amino acid residues 39-44 in horseradish peroxidase). ... IAA + InCH 2 + CO 2 , . ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/BCM_98_63(06)_749/BCM_98_63(06)_0749.htm -- 22.8 Кб -- 28.06.2000
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312. Abstract
... 1 Department of Chemical Enzymology, School of Chemistry, Lomonosov Moscow State University, Moscow, 119899 Russia; fax: (7-095) 939-2742; E-mail: vit@enz.chem.msu.ru . ... 33, Moscow, 117071 Russia; fax: (7-095) 954-2732; E-mail: inbio@glas.acp.org . ... The kinetic properties of native, wild-type, and W117F mutant recombinant horseradish peroxidase in the reactions of ammonium 2,2 -azino-bis(3-ethylbenzthiazoline-6-sulfonate) (ABTS), guaiacol, and o -phenylenediamine oxidation are very similar. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/BCM_00_65(05)_0685.htm -- 3.6 Кб -- 28.06.2000
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313. http://www.enzyme.chem.msu.ru/~tishkov/Publications/bcm_00_65(5)_0583.pdf
... Its replacement with Phe in recombinant horseradish peroxidase (rHRP) increased the stability of the mutant enzyme in acid media. The kinetic properties of native wild-type and W117F mutant recombinant horseradish peroxidase in the reactions of ammonium 2,2-azino-bis(3-ethylbenzthiazoline-6-sulfonate) (ABTS), guaiacol, and o-phenylenediamine oxidation are very similar. ... A tryptophanless mutant of recombinant horseradish peroxidase (W117FrHRP) has been produced in our laboratory [4]. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/bcm_00_65(5)_0583.pdf -- 92.8 Кб -- 15.05.2000
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314. http://www.enzyme.chem.msu.ru/ryabov/pdf/JBIC_97.pdf
ARTICLE Alexander D. Ryabov 7 Vasily N. Goral Steady-state kinetics, micellar effects, and the mechanism of peroxidase-catalyzed oxidation of n -alkylferrocenes by hydrogen peroxide Received: 15 July 1996 / Accepted: 15 November 1996 Abstract Kinetics of the steady-state oxidation of nalkylferrocenes (alkyl p H, Me, Et, Bu and C5H11) by H2O2 to form the corresponding ferricenium cations catalyzed by horseradish peroxidase has been studied in micellar systems of Triton ... Fig. ...
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Ссылки http://www.enzyme.chem.msu.ru/ryabov/pdf/JBIC_97.pdf -- 257.8 Кб -- 11.05.2000
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315. PubMed medline query
... The deduced amino acid sequence of FDH from Mycobacterium vaccae N10 (McFDH) was identical to that of Pseudomonas sp. 101 (PsFDH) except for two amino acid residues: isoleucine-35 (threonine in PsFDH) and glutamate-61 (lysine in PsFDH). ... To examine the role of the two amino acid residues in the thermostability of the enzymes, glutamate-61 of McFDH was replaced by glutaminyl, prolyl and lysyl residues by site-directed mutagenesis. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/Apl_Micr_Biotech_95.html -- 4.9 Кб -- 17.04.2000
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316. PubMed medline query
... The level of expression in Escherichia coli cells and different steps of purification of the recombinant NADP(+)-dependent formate dehydrogenase (EC 1.2.1.2, FDH) from bacterium Pseudomonas sp.101 was analyzed by rapid SDS-Gel capillary electrophoresis (SDS-Gel CE) and compared with SDS polyacrylamide gel electrophoresis (SDS PAGE). ... The molecular mass of the purified FDH was determined as 44,078 Da by matrix-assisted laser desorption/ ionisation time of flight mass spectrometry. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/J-Biotechnol_97.html -- 4.5 Кб -- 17.04.2000
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317. PubMed medline query
Other Formats: . ... Full text paper in PDF format . ... This modified 5S RNA could be reconstituted efficiently into 50S ribosomal subunits or 70S functional complexes. ... A crosslink in high yield was reproducibly observed between the modified 5S RNA and 23S RNA, involving residue U-89 of the 5S RNA (at the loop end of helix IV) linked to nucleotide 2477 of the 23S RNA in the loop end of helix 89, immediately adjacent to the peptidyltransferase "ring." ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/PNAS_94.html -- 4.5 Кб -- 17.04.2000
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318. PubMed medline query
... Gln313 and His332 residues in the active centre of NAD(+)-dependent formate dehydrogenase (EC 1.2.1.2, FDH) from the bacterium Pseudomonas sp. 101 are conserved in all FDHs and are equivalent to the glutamate-histidine pair in active sites of D-specific 2-hydroxyacid dehydrogenases. ... The Gln313Glu mutation shifts the pK of the group controlling formate binding from less than 5.5 in wild-type enzyme to 7.6 thus indicating that Gln313 is essential for the broad pH affinity profile towards substrate...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/FEBS_Lett_96.html -- 4.6 Кб -- 17.04.2000
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319. PubMed medline query
... FEBS Lett 1994 Nov 14;354(3):248-50 . ... The purified homogeneous preparations have been studied in the reaction of ABTS oxidation. The effect of mutations on heme entrapment and kinetics of ABTS oxidation demonstrates the essential role of the replaced residues in providing the hydrophobic crevice for the non-covalent heme binding. PMID: 7957932, UI: 95046343 . ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/FEBS_Lett_94.html -- 3.7 Кб -- 17.04.2000
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320. PubMed medline query
... Indole-3-acetic acid (IAA) can be oxidized via two mechanisms: a conventional hydrogen-peroxide-dependent pathway, and one that is hydrogen-peroxide-independent and requires oxygen. It has been shown here for the first time that only plant peroxidases are able to catalyse the reaction of IAA oxidation with molecular oxygen. ... An analysis of amino acid sequences allowed five structurally similar fragments to be identified in auxin-binding proteins and plant peroxidases. ...
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Ссылки http://www.enzyme.chem.msu.ru/~tishkov/Publications/Biochem_J_99.htm -- 4.8 Кб -- 17.04.2000
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