A study of the photoinduced conformational mobility of spin-labeled regenerated rhodopsin by ESR spectroscopy

Shelyakin, P. V.; Kovarskii, A. L.; Kasparov, V. V.; Feldman, T. B.; Ostrovskii, M. A.

doi:10.1134/s1990793112060127

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Dark regeneration of rhodopsin, i.e., return of 11 cis retinal into opsin chromophore center, leads to recovery of dark conformation state of rhodopsin, and if so, the photoinduced conformational response of regenerated rhodopsin on light action can be regis tered again [43].…”

Section: Transition Of Rhodopsin Molecule Into Physiologically Activementioning

confidence: 99%

Molecular physiology of visual pigment rhodopsin

Оstrovsky

2012

Biochem. Moscow Suppl. Ser. A

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Section: Transition Of Rhodopsin Molecule Into Physiologically Activementioning

confidence: 99%

Molecular physiology of visual pigment rhodopsin

Оstrovsky

2012

Biochem. Moscow Suppl. Ser. A

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“…Irradiation with light of > 450 nm wavelength converted it from the dark form into the physiologically active metarhodopsin II, which has an increased mobility in the cytoplasmic loop (Cys140) and eighth alpha-helix. Subsequent irradiation with light of wavelength < 445 nm caused a reduction in this mobility, simultaneously with converting metarhodopsin II into a mixture of physiologically inactive products234 . It is thought that, depending on the substrate, peroxidases can perform both one-and two-electron oxidations.…”

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confidence: 99%

Unpaired Electrons as Probes of Catalytic Systems

Rhodes¹

2014

Science Progress

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An overview is provided of the importance of molecular species containing unpaired electrons in catalytic systems, as revealed using ESR spectroscopy. The review aims to demonstrate the considerable extent of scientific progress that has been made in this broad topic during the past few decades. Studies of catalytically active surfaces, including zeolites, are surveyed, and the detection of radical species, formed as intermediates in their reactions, using matrix isolation and spintrapping techniques. Radical cation formation in zeolites is discussed, and the employment of muon spin rotation and relaxation techniques to study the mobility of labelled radicals in various porous and catalytic media. Among the specific types of catalytic media considered are those for photocatalysis, water splitting, degradation of environmental pollutants, hydrocarbon conversions, fuel cells and sensor devices employing graphene. The review concludes with recent developments in the study of enzymes and their reactions, using ESR-based methods.

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The Role of ESR Spectroscopy in Advancing Catalytic Science: Some Recent Developments

Rhodes¹

2015

Progress in Reaction Kinetics and Mechanism

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Recent progress is surveyed in regard to the importance of molecular species containing unpaired electrons in catalytic systems, as revealed using ESR spectroscopy. The review begins with studies of enzymes and their role directly in biological systems, and then discusses investigations of various artificially created catalysts with potential human and environmental significance, including zeolites. Among the specific types of catalytic media considered are those for photocatalysis, water splitting, the degradation of environmental pollutants, hydrocarbon conversions, fuel cells, ionic liquids and sensor devices employing graphene. Studies of muonium-labelled radicals in zeolites are also reviewed, as a means for determining the dynamics of transient radicals in these nanoporous materials.

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A study of the photoinduced conformational mobility of spin-labeled regenerated rhodopsin by ESR spectroscopy

Cited by 3 publications

References 11 publications

Molecular physiology of visual pigment rhodopsin

Molecular physiology of visual pigment rhodopsin

Unpaired Electrons as Probes of Catalytic Systems

The Role of ESR Spectroscopy in Advancing Catalytic Science: Some Recent Developments

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