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Browsing by Author "Klochkov V."

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13C NMR spectroscopy of peroxide derivatives of cyclanes and cyclic peroxides

Klochkov V.; Antonovskii V.; Chernov P.; Aganov A.; Koshel' G. (1987)

1. The13C NMR spectra of peroxide derivatives of cyclanes and cyclic peroxides have been investigated. 2. Replacement of the exocyclic OH group by OOH for saturated cyclic systems leads to a displacement of the signals ...
A novel liquid crystalline system for partial alignment of polar organic molecules

Klochkov V.; Klochkov A.; Thiele C.; Berger S. (2006)

A new system for partial alignment of polar organic molecules to measure residual dipolar couplings in NMR consists of a 1:1 or a 2:1 mixture of water and DMSO including 3-13% n-alkylpentaethylene glycol as the surfactant. ...
A quantum chemical study of an interaction between collagen fragments and calcium ions using calculations of model complexes

Aminova R.; Galiullina L.; Klochkov V.; Aganov A. (2015)

© 2015 Springer Science+Business Media New York. Quantum chemical calculations revealed that the complexation between proline-containing collagen fragments and calcium ions involves a preferential interaction between ...
Addition of thiols to (-)-carvone

Sirazieva E.; Startseva V.; Nikitina L.; Plemenkov V.; Klochkov V.; Khairutdinov B. (2004)

Polyfunctional thioterpenoids were formed in the presence of a Lewis-acid catalyst by reaction of (-)-carvone with thiols that involved the endocyclic double bond and the carbonyl. © 2004 Springer Science+Business Media, Inc.
Aggregation properties of monofunctionalized pillar[5]arenes containing alkylamide fragments

Nazarova A.; Gilyazeva A.; Padnya P.; Khadieva A.; Evtugyn V.; Klochkov V.; Stoikov I. (2019)

© 2019 Author(s). Solvent effect on aggregation properties of the monosubstituted pillar[5]arenes containing N-alkyl amide fragments with the different length of the substituent has been investigated. It was shown by ...
An arabinogalactan isolated from Boswellia carterii: Purification, structural elucidation and macrophage stimulation via NF-κB and MAPK pathways

Bahramzadeh S.; Tabarsa M.; You S.; Yelithao K.; Klochkov V.; Ilfat R. (2019)

© 2018 Elsevier Ltd Polysaccharides from Boswellia carterii were isolated using hot water and fractionated on a DEAE Sepharose Fast Flow column to evaluate their structural characteristics and macrophage stimulating ...
Analysis of Bovine Serum Albumine, Caseine and tryptone proteins hydrolysis by 1H NMR spectroscopy

Bikmullin A.; Alimova F.; Aganov A.; Klochkov V.; Usachev K. (2015)

An adequate estimation of a proteinaceous substrate decomposition is one of the problems, frequently appearing during the protein hydrolysate technology. A combination of high-resolution 1H NMR spectroscopy data ...
Analysis of the spatial structure of calixarenes in solutions by 2-D NMR (NOESY) spectroscopy

Gadiev T.; Khairutdinov B.; Antipin I.; Klochkov V. (2006)

The spatial structure of calixarenes has been investigated by two-dimensional nuclear Overhauser effect spectroscopy (NOESY). A technique to study spatial structure of small molecules based on the combination of the method ...
Antimicrobial peptide protegrin-3 adopt an antiparallel dimer in the presence of DPC micelles: A high-resolution NMR study

Usachev K.; Efimov S.; Kolosova O.; Klochkova E.; Aganov A.; Klochkov V. (2015)

© 2015 Springer Science+Business Media Dordrecht. A tendency to dimerize in the presence of lipids was found for the protegrin. The dimer formation by the protegrin-1 (PG-1) is the first step for further oligomeric membrane ...
Antimicrobial Peptide Protegrins Interact with DPC Micelles by Apolar Hydrophobic Cluster: Structural Studies by High-Resolution NMR Spectroscopy

Kolosova O.; Usachev K.; Aganov A.; Klochkov V. (2016)

© 2016, Springer Science+Business Media New York.For the disulfide-bonded β-sheet-forming peptides which include protegrins, the presence of positively charged amino acid residues allows their strong interaction with the ...
Application of high resolution NMR (1H and 13C) and FTIR spectroscopy for characterization of light and heavy crude oils

Rakhmatullin I.; Efimov S.; Tyurin V.; Al-Muntaser A.; Klimovitskii A.; Varfolomeev M.; Klochkov V. (2018)

© 2018 Elsevier B.V. High-resolution nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy experiments were applied to obtain detailed information on the hydrocarbon chemistry of three light ...
Backbone and side chain NMR assignments for the ribosome Elongation Factor P (EF-P) from Staphylococcus aureus

Usachev K.; Golubev A.; Validov S.; Klochkov V.; Aganov A.; Khusainov I.; Yusupov M. (2018)

© 2018, Springer Nature B.V. Elongation Factor P (EF-P) is a 20.5 kDa protein that provides specialized translation of special stalling amino acid motifs. Proteins with stalling motifs are often involved in various processes, ...
Biological Activity of S-Containing Monoterpenoids

Nikitina L.; Artemova N.; Startseva V.; Fedyunina I.; Klochkov V. (2017)

© 2017, Springer Science+Business Media, LLC. S-containing mono- and bicyclic monoterpenoids were reviewed with respect to antifungal, anti-inflammatory, anti-helicobacter, anticlotting, membrane-protective, antitumor, ...
Changes in the nitrocellulose molecule induced by sulfate-reducing bacteria Desulfovibrio desulfuricans 1388. The enzymes participating in this process

Tarasova N.; Petrova O.; Davydova M.; Khairutdinov B.; Klochkov V. (2004)

The appearance of unsubstituted glucopyranose residues in nitrocellulose (NC) induced by Desulfovibrio desulfuricans was established by 13C-NMR spectroscopy. After contact with bacterial cells, the degree of substitution ...
Chemical shift assignments and the secondary structure of the Est3 telomerase subunit in the yeast Hansenula polymorpha

Mariasina S.; Efimov S.; Petrova O.; Rodina E.; Malyavko A.; Zvereva M.; Klochkov V.; Dontsova O.; Polshakov V. (2017)

© 2017 Springer Science+Business Media B.V. Telomerase is a multisubunit ribonucleoprotein enzyme that is essential for continuous cellular proliferation. A key role of telomerase in cancer and ageing makes it a promising ...
Comment on "conformational analysis of small organic molecules using NOE and RDC data: A discussion of strychnine and α-methylene-γ-butyrolactone"

Khodov I.; Kiselev M.; Efimov S.; Klochkov V. (2016)
Comparison of the cyclosporine variants A and D by NMR spectroscopy

Kobchikova P.; Zgadzay Y.; Efimov S.; Klochkov V. (2019)

© 2019 Kazan Federal University. All Rights Reserved. A natural variant of cyclosporine A, cyclosporine D, has been studied using high-resolution NMR spectroscopy in a non-polar solution (chloroform). A complete assignment ...
Complicated Conformational Exchange of New Pyridoxine Derivative. Dynamic13C NMR Characterization

Rakhmatullin I.; Galiullina L.; Karataeva F.; Klochkov V. (2017)

© 2017, Springer Science+Business Media, LLC. New pyridoxine derivative with multiple chemical exchanges was studied by 13 C (at 298 K, 188 K) and 2D NMR ( 1 H- 13 C HSQC, 1 H- 13 C HMBC) spectroscopy in acetone-d 6 solution. ...
Conformational properties of 4,4,7,7-tetramethyl-2-hetero-1,3-dioxepanes

Arbuzov B.; Klochkov V.; Chernov P.; Borisenko H.; Yuldasheva L. (1987)

4,4,7,7-tetramethyl-1,3-dioxepane and 2,2,4,4,7,7-hexamethyl-2-sila-1,3-dioxepane exist in solution in the twist-boat conformation. © 1987 Plenum Publishing Corporation.
Conformational stability of diastereomeric 8,8-dichloro-3,5-dioxa-4-thia-4-oxobicyclo[5.1.0]octanes: X-ray crystallography, dynamic 1H and 13C NMR spectroscopy study

Gavrilov V.; Shamsutdinov M.; Kataeva O.; Klochkov V.; Litvinov I.; Shtyrlin Y.; Klimovitskii E. (2008)

X-ray data for both title molecules display a chair conformation with exo location of cyclopropane moiety and axial or equatorial sulfinyl group. Dynamic 1H and 13C NMR spectroscopy at -95 °S{cyrillic} exhibit conformational ...

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