Phototropin

Phototropin

Phototropin is a photoreceptive protein that acts as a blue light receptor and contains flavin mononucleotide as its chromophore. It regulates a range of processes that optimize photosynthetic efficiency and promote plant growth, especially under weak light conditions.From: The Fluorescent Protein Revolution [2019], On the influence of dimerisation of lumiflavin in aqueous solution on its optical spectra – a quantum chemical study [2019], Untangling Complex Systems [2018]

Complex Systems

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Published in Pier Luigi Gentili, Untangling Complex Systems, 2018

Pier Luigi Gentili

All these processes are triggered by the blue light that is absorbed by the photoreceptive protein, Phototropin, having a flavin mononucleotide as its chromophore. It is a molecular switch, like phytochrome. The inactive form (D) absorbs the blue and transforms into the active form (L): [] D→blueL

Dynamics of flavin containing radical pairs in SDS micellar media probed by static and pulse magnetic field effect and pulse ADMR

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Published in Molecular Physics, 2019

Kiminori Maeda, Yusuke Naito

Recently, the attraction to the photochemistry of the flavin systems has been increased in connection with the flavin containing photoreceptor molecule such as phototropin, photolyase, and cryptochrome [16–18]. Since some experimental evidence suggests that the photochemical dynamics of flavins has been considered as the source of the magneto reception of animals and plants [17,19,20], the MFE on the dynamics of RP comprised of flavin has received various attentions [21–23]. Since the flavin derivatives have a mixed character of hydrophobic and hydrophilic, the association feature of them to the hydrophobic molecular system is rather complicated. Previously, we have reported a dependence of the association feature on the hydrophobic character of flavin derivatives by using MFE [24]. Addition to the hydrophobic nature, the Coulomb forces of the ionic structure of the molecules also have a great contribution to the association of the molecules [25,26]. We can think that such character is one of the essential problems of the spin related reaction dynamics in the biological environments [27–29].

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Complex Systems

Dynamics of flavin containing radical pairs in SDS micellar media probed by static and pulse magnetic field effect and pulse ADMR