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A Theoretical Study of 5,6,7,8-Tetrahydro-6-Hydroxymethylpterin: Insight into Intrinsic Photoreceptor Properties of 6-Substituted Tetrahydropterins

Abstract

Tetrahydropterins are essential biological cofactors, which play crucial role in DNA and RNA synthesis, NO synthesis, hydroxylation of aromatic amino acids, etc. In the last few years it was shown that 6-substituted “unconjugated” tetrahydropterins can also play a photoreceptor chromophoric role in plants and cyanobacteria. However, the nature of the initial light signal transduction act in which H4pterins participate is unknown. Our quantum chemical calculations have shown the possibility of fast internal conversion of excited states of H4pterins. It was demonstrated for the first time that the nature of the excited states of H4pterins is similar to the nature of excited states of guanine.

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Publication details

The article was received on 17 Jul 2018, accepted on 04 Dec 2018 and first published on 05 Dec 2018


Article type: Paper
DOI: 10.1039/C8PP00322J
Citation: Photochem. Photobiol. Sci., 2018, Accepted Manuscript
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    A Theoretical Study of 5,6,7,8-Tetrahydro-6-Hydroxymethylpterin: Insight into Intrinsic Photoreceptor Properties of 6-Substituted Tetrahydropterins

    A. A. Buglak and T. Telegina, Photochem. Photobiol. Sci., 2018, Accepted Manuscript , DOI: 10.1039/C8PP00322J

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