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Akademický článek

The advent of phyllobilins as bioactive phytochemicals – natural compounds derived from chlorophyll in medicinal plants and food with immunomodulatory activities

Autor: Vollmar Angelika M., Moser Simone

Publikováno v: Pteridines, Vol 34, Iss 1, Pp 35-43 (2023)

The degradation of the green plant pigment chlorophyll has fascinated chemists and biologists alike over the last few decades. Bioactivities of the compounds formed in this biochemical degradation pathway, however, have only come to light recently. T

Externí odkaz: https://doaj.org/article/c16e0463ea054d5cb92a7a2738cfdff2

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Model-free inference of memory in conformational dynamics of a multi-domain protein

Autor: Vollmar, Leonie, Bebon, Rick, Schimpf, Julia, Flietel, Bastian, Celiksoy, Sirin, Sönnichsen, Carsten, Godec, Aljaž, Hugel, Thorsten

Publikováno v: J. Phys. A: Math. Theor. 57, 365001 (2024)

Single-molecule experiments provide insight into the motion (conformational dynamics) of individual protein molecules. Usually, a well-defined but coarse-grained intramolecular coordinate is measured and subsequently analysed with the help of Hidden

Externí odkaz: http://arxiv.org/abs/2404.16799

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Constrained hidden Markov models reveal further Hsp90 protein states

Autor: Tancredi, Riccardo, Feltrin, Antonio, Infirri, Giosuè Sardo, Toso, Simone, Vollmar, Leonie, Hugel, Thorsten, Baiesi, Marco

Publikováno v: New J. Phys., 26, 073023 (2024)

Time series of conformational dynamics in proteins are usually evaluated with hidden Markov models (HMMs). This approach works well if the number of states and their connectivity is known. However, for the multi-domain protein Hsp90, a standard HMM a

Externí odkaz: http://arxiv.org/abs/2402.19207

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Ultrafast Demagnetization Dynamics Due to Electron-Electron Scattering and Its Relation to Momentum Relaxation in Ferromagnets

Autor: Vollmar, Svenja, Leckron, Kai, Schneider, Hans Christian

We analyze theoretically the demagnetization dynamics in a ferromagnetic model system due to the interplay of spin-orbit coupling and electron-electron Coulomb scattering. We compute the $k$-resolved electronic reduced spin-density matrix including p

Externí odkaz: http://arxiv.org/abs/2208.02356

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Akademický článek

Application of 4,5-diaminofluorescein to reliably measure nitric oxide released from endothelial cells in vitro

Autor: Räthel Thomas R., Leikert Jürgen F., Vollmar Angelika M., Dirsch Verena M.

Publikováno v: Biological Procedures Online, Vol 5, Iss 1, Pp 136-142 (2003)

Here we describe in more depth the previously published application of the fluorescent probe 4,5-diaminofluorescein (DAF-2) in order to reliably measure low levels of nitric oxide (NO) as released from human endothelial cells in vitro. The used appro

Externí odkaz: https://doaj.org/article/2980f4d28ee947f5836a99f6bb63afc4

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