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  1. No Access

    Article

    Photooxidation of Tetrahydrobiopterin as the Basis of Vitiligo Phototherapy

    The kinetics of photooxidation of tetrahydrobiopterin was investigated, the quantum yields of the formation of dihydropterin dimers were calculated when using a xenon lamp, a tunable UV laser and a UV LED as U...

    T. A. Telegina, Yu. L. Vechtomova, M. S. Kritsky… in Optics and Spectroscopy (2023)

  2. No Access

    Article

    Tetrahydrobiopterin Photooxidation: a Key Process in Vitiligo Phototherapy

    The processes of the autooxidation and photooxidation of tetrahydrobiopterin (Н4Bip) (a coenzyme present in a three- to fivefold excess in vitiligo) were studied in the context of vitiligo pathology and treatment...

    T. A. Telegina, Yu. L. Vechtomova, M. S. Kritsky… in Applied Biochemistry and Microbiology (2021)

  3. No Access

    Article

    Evolution of Proteins of the DNA Photolyase/Cryptochrome Family

    Proteins of the cryptochrome/DNA photolyase family (CPF) are phylogenetically related and structurally conserved flavoproteins that perform various functions. DNA photolyases repair DNA damage caused by UV-B r...

    Yu. L. Vechtomova, T. A. Telegina, M. S. Kritsky in Biochemistry (Moscow) (2020)

  4. No Access

    Article

    Isolation and Characterization of Water-Soluble Chromoproteins from Arthrospira platensis Cyanobacteria: C-Phycocyanin, Allophycocyanin, and Carotenoid- and Chlorophyll-Binding Proteins

    A method using chromatography on DEAE-Toyopearl 650M was developed for the simultaneous extraction of water-soluble chromoproteins from Arthrospira platensis cyanobacteria cells. These chromoproteins were C-phyco...

    T. A. Telegina, M. V. Biryukov, I. V. Terekhova… in Applied Biochemistry and Microbiology (2018)

  5. No Access

    Article

    Modeling of abiotic ATP synthesis in the context of problems of early biosphere evolution

    The pathway of adenosine triphosphate (ATP) synthesis in living organisms consists of two autonomous stages; this must be taken into account during the design and analysis of chemical models of the abiogenesis...

    M. S. Kritsky, T. A. Telegina, A. A. Buglak, M. P. Kolesnikov… in Geochemistry International (2014)

  6. No Access

    Article

    Abiotic model of photophosphorylation of ADP to ATP: Characteristics of photoreceptor pigments and the role of organosilicate matrix

    A model of photophosphorylation of ADP to ATP under UV and blue light with the use of substances available in the prebiotic period of evolution is proposed. It is shown that the photoactive pigments of flavin ...

    T. A. Telegina, M. P. Kolesnikov, A. A. Buglak… in Paleontological Journal (2013)

  7. No Access

    Article

    Photoactivated matrices in prebiotic evolution processes

    The processes of abiogenesis of biologically important compounds (amino acids, peptides, pyruvic acid, etc.) under the conditions of adsorption in mineral (titanium dioxide, silica gel) or organic (melanoidin)...

    T. A. Telegina, M. P. Kolesnikov, Yu. L. Vechtomova in High Energy Chemistry (2010)

  8. No Access

    Article

    Photobiochemistry of folates: A photochemical reduction of folic acid

    Exposure of deaerated folic acid solutions containing an electron donor to UV radiation (310–390 nm, I = 0.4 W m−2) induced formation of dihydrofolic acid (DHFA), a photoexcitation which gave tetrahydrofolic acid...

    Yu. L. Vechtomova, T. A. Telegina… in Applied Biochemistry and Microbiology (2010)