Wyniki wyszukiwania dla: Vladimir I. Martynov

Pozycje od 1 do 11 spośród 11 wyników

artykuł

Fluorescent protein Dendra2 as a ratiometric genetically encoded pH-sensor

Alexey A. Pakhomov, Vladimir I. Martynov, Alexander N. Orsa, Alena A. Bondarenko, więcej

Biochemical and Biophysical Research Communications > 2017 > 493 > 4 > 1518-1521

Fluorescent protein Dendra2 is a monomeric GFP-like protein that belongs to the group of Kaede-like photoconvertible fluorescent proteins with irreversible photoconversion from a green- to red-emitting state when exposed to violet-blue light. In an acidic environment, photoconverted Dendra2 turns green due to protonation of the phenolic group of the chromophore with pKa of about 7.5. Thus, photoconverted...

artykuł

Synthesis and crystal structure of a meso-decene-BODIPY dye as a functional bright fluorophore for silicone matrices

Alexey A. Pakhomov, Veronika B. Mironiuk, Yuriy N. Kononevich, Alexander A. Korlyukov, więcej

Mendeleev Communications > 2017 > 27 > 4 > 363-365

A meso-decene-BODIPY dye was synthesized and conjugated to a polydimethylsiloxane. Fluorescence properties of the obtained polymer drastically changed in different solvents. The polymer showed an unusual for other siloxane polymers trend to structuration.

artykuł

Synthesis, crystal structure and optical properties of a new meso-acrylate BODIPY dye

Alexey A. Pakhomov, Yuriy N. Kononevich, Alexander A. Korlyukov, Vladimir I. Martynov, więcej

Mendeleev Communications > 2016 > 26 > 3 > 196-198

The meso-acrylic 1,3,5,7-tetramethyl-BODIPY derivative was obtained from 2,4-dimethylpyrrole and ethyl 4-chloro-4-oxobutanoate and its crystal structure was characterized by X-ray diffraction. This 8-alkenyl-BODIPY dye is originally nonfluorescent, but turns-on fluorescence upon the double bond reduction.

artykuł

Synthesis and photophysical properties of a new BODIPY-based siloxane dye

Alexey A. Pakhomov, Yuriy N. Kononevich, Maria V. Stukalova, Evgeniya A. Svidchenko, więcej

Tetrahedron Letters > 2016 > 57 > 9 > 979-982

A fluorescent dye comprising four BODIPY derivatives conjugated to a cyclotetrasiloxane core was synthesized by consecutive hydrosilylation and esterification reactions. Photophysical properties of the dye in various organic solvents were investigated. It was shown that due to a fourfold extinction coefficient increase and a moderate quantum yield decrease the brightness of the tetra-BODIPY dye in...

artykuł

Probing the structural determinants of yellow fluorescence of a protein from Phialidium sp.

Alexey A. Pakhomov, Vladimir I. Martynov

Biochemical and Biophysical Research Communications > 2011 > 407 > 1 > 230-235

Fluorescent proteins homologous to green fluorescent protein (avGFP) display pronounced spectral variability due to different chromophore structures and variable chromophore interactions with the surrounding amino acids. To gain insight into the structural basis for yellow emission, the 3D structure of phiYFP (λ _em =537nm), a protein from the sea medusa Phialidium sp., was built by a combined...

artykuł

GFP Family: Structural Insights into Spectral Tuning

Alexey A. Pakhomov, Vladimir I. Martynov

Chemistry & Biology > 2008 > 15 > 8 > 755-764

Proteins homologous to green fluorescent protein (GFP) span most of the visible spectrum, offering indispensable tools for live cell imaging. Structural transformations, such as posttranslational autocatalytic and photo-induced modifications, chromophore isomerization, and rearrangements in its environment underlie the unique capacity of these proteins to tune their own optical characteristics. A...

artykuł

Chromophore Aspartate Oxidation−Decarboxylation in the Green-to-Red Conversion of a Fluorescent Protein from Zoanthus sp. 2 ^†

Alexey A. Pakhomov, Vladimir I. Martynov

Biochemistry > 2007 > 46 > 41 > 11528 - 11535

artykuł

Chromophore Structure of the Kindling Fluorescent Protein asFP595 from Anemonia sulcata

Yulia A. Tretyakova, Alexey A. Pakhomov, Vladimir I. Martynov

Journal of the American Chemical Society > 2007 > 129 > 25 > 7748 - 7749

artykuł

Structure and Reactivity of the Chromophore of a GFP-like Chromoprotein from Condylactis gigantea ^†

Alexey A. Pakhomov, Nadezhda V. Pletneva, Tamara A. Balashova, Vladimir I. Martynov

Biochemistry > 2006 > 45 > 23 > 7256 - 7264

artykuł

Synthesis and Properties of the Chromophore of the asFP595 Chromoprotein from Anemonia sulcata ^†

Ilia V. Yampolsky, S. James Remington, Vladimir I. Martynov, Victor K. Potapov, więcej

Biochemistry > 2005 > 44 > 15 > 5788 - 5793

artykuł

GFP-like chromoproteins as a source of far-red fluorescent proteins ¹

Nadya G. Gurskaya, Arkady F. Fradkov, Alexey Terskikh, Mikhail V. Matz, więcej

FEBS Letters > 2001 > 507 > 1 > 16-20

We have employed a new approach to generate novel fluorescent proteins (FPs) from red absorbing chromoproteins. An identical single amino acid substitution converted novel chromoproteins from the species Anthozoa (Heteractis crispa, Condylactis gigantea, and Goniopora tenuidens) into far-red FPs (emission λ _m _a _x =615-640 nm). Moreover, coupled site-directed and random mutagenesis...

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Biochemical and Biophysical Research Communications (2)
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