Výsledky vyhledávání

Akademický článek

A red-green photochromic bacterial protein as a new contrast agent for improved photoacoustic imaging

Autor: Francesco Garzella, Paolo Bianchini, Alberto Diaspro, Aba Losi, Wolfgang Gärtner, Stefania Abbruzzetti, Cristiano Viappiani

Publikováno v: Photoacoustics, Vol 26, Iss , Pp 100358- (2022)

The GAF3 domain of the cyanobacteriochrome Slr1393 from Synechocystis sp. PCC6803, binding phycocyanobilin as a chromophore, shows photochromicity between two stable, green- and red-absorbing states, characterized by relatively high photoconversion y

Externí odkaz: https://doaj.org/article/dde5743f4df24fde9ab4a1aa796ff715

Zobrazit plný text záznamu

Akademický článek

From Plant Infectivity to Growth Patterns: The Role of Blue-Light Sensing in the Prokaryotic World

Autor: Aba Losi, Carmen Mandalari, Wolfgang Gärtner

Publikováno v: Plants, Vol 3, Iss 1, Pp 70-94 (2014)

Flavin-based photoreceptor proteins of the LOV (Light, Oxygen, and Voltage) and BLUF (Blue Light sensing Using Flavins) superfamilies are ubiquitous among the three life domains and are essential blue-light sensing systems, not only in plants and alg

Externí odkaz: https://doaj.org/article/51eea7eafe8642238180b82163673091

Zobrazit plný text záznamu

Akademický článek

The dark recovery rate in the photocycle of the bacterial photoreceptor YtvA is affected by the cellular environment and by hydration.

Autor: Francesca Pennacchietti, Stefania Abbruzzetti, Aba Losi, Carmen Mandalari, Roberta Bedotti, Cristiano Viappiani, Francesca Cella Zanacchi, Alberto Diaspro, Wolfgang Gärtner

Publikováno v: PLoS ONE, Vol 9, Iss 9, p e107489 (2014)

We report thermal recovery kinetics of the lit state into the parental dark state, measured for the blue light-sensing photoreceptor YtvA inside overexpressing E. coli and B. subtilis bacterial cells, performed for the wild type and several mutated p

Externí odkaz: https://doaj.org/article/c6d6a42a639d473faf1a79413727ef9a

Zobrazit plný text záznamu

Akademický článek

A LOV protein modulates the physiological attributes of Xanthomonas axonopodis pv. citri relevant for host plant colonization.

Autor: Ivana Kraiselburd, Analía I Alet, María Laura Tondo, Silvana Petrocelli, Lucas D Daurelio, Jesica Monzón, Oscar A Ruiz, Aba Losi, Elena G Orellano

Publikováno v: PLoS ONE, Vol 7, Iss 6, p e38226 (2012)

Recent studies have demonstrated that an appropriate light environment is required for the establishment of efficient vegetal resistance responses in several plant-pathogen interactions. The photoreceptors implicated in such responses are mainly thos

Externí odkaz: https://doaj.org/article/fe6fc919cc3e4fd2a27e3b1ba3981766

Zobrazit plný text záznamu

Oxygen diffusion pathways in mutated forms of a LOV photoreceptor from Methylobacterium radiotolerans: A molecular dynamics study

Autor: Rocco Zerlotti, Aba Losi, Eugenia Polverini

Publikováno v: Biomolecular Concepts. 13:164-174

Mr4511 from Methylobacterium radiotolerans is a photoreceptor of the light, oxygen voltage (LOV) family, binding flavin mononucleotide (FMN) as a chromophore. It exhibits the prototypical LOV photocycle, with the reversible formation of an FMN-Cys71

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::83136fa617333664b8e33f18a5c696b1
https://doi.org/10.1515/bmc-2022-0013

Zobrazit plný text záznamu

Time-resolved photoacoustics of channelrhodopsins: early energetics and light-driven volume changes

Autor: Maria Walter, Luiz Schubert, Joachim Heberle, Ramona Schlesinger, Aba Losi

Publikováno v: Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

In biological photoreceptors, the energy stored in early transient species is a key feature to drive the photocycle or a chain of reactions. Time-resolved photoacoustics (PA) can explore the energy landscape of transient species formed within few ns

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::174503ae8ca58b09049c06c1cb63fd9c
https://pubmed.ncbi.nlm.nih.gov/36273368

Zobrazit plný text záznamu

Interplay among the 'flipping' glutamine, a conserved phenylalanine, water and hydrogen bonds within a blue-light sensing LOV domain

Autor: Aba Losi, Eugenia Polverini, Florian Karl Schackert

Publikováno v: Photochemical & Photobiological Sciences. 19:892-904

In this work we exploited time-resolved photoacoustics (PA) and molecular dynamics (MD) simulations to investigate the function of a conserved phenylalanine residue in blue sensing (BL) LOV domains. The LOV photocycle involves reversible formation of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5db0401e17a049bdd886b80f5c1ca439
https://doi.org/10.1039/d0pp00082e

Zobrazit plný text záznamu

The first molecular characterisation of blue- and red-light photoreceptors from Methylobacterium radiotolerans

Autor: Eleonora Consiglieri, Kai-Hong Zhao, Aba Losi, Qian-Zhao Xu, Wolfgang Gärtner

Publikováno v: Physical Chemistry Chemical Physics. 22:12434-12446

Methylobacteria are facultative methylotrophic phytosymbionts of great industrial and agronomical interest, and they are considered as opportunistic pathogens posing a health threat to humans. So far only a few reports mention photoreceptor coding se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1aa81d14d6aa789ffb6b01d3b7480062
https://doi.org/10.1039/d0cp02014a

Zobrazit plný text záznamu

Mapping the role of aromatic amino acids within a blue-light sensing LOV domain

Autor: Ziyue Zhao, Yonghong Ding, Aba Losi, Jörg Matysik, Wolfgang Gärtner

Publikováno v: Physical chemistry chemical physics : PCCP. 23(31)

Photosensing LOV (Light, Oxygen, Voltage) domains detect and respond to UVA/Blue (BL) light by forming a covalent adduct between the flavin chromophore and a nearby cysteine, via the decay of the flavin triplet excited state. LOV domains where the re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c8c220fc18d100e64e489c9891f8e4e
https://pubmed.ncbi.nlm.nih.gov/34319324

Zobrazit plný text záznamu

Develpoment and Characterization of Novel Probes for Photoacoustic Microscopy

Autor: Stefania Abbruzzetti, Francesco Garzella, Alberto Diaspro, Aba Losi, Ranieri Bizzarri, Wolfgang Gärtner, Barbara Storti, Paolo Bianchini, Cristiano Viappiani

Publikováno v: Biophysical journal
120 (2021): 363A-363A–363A-363A. doi:10.1016/j.bpj.2020.11.2240
info:cnr-pdr/source/autori:Garzella F.; Storti B.; Bizzarri R.; Losi A.; Gartner W.; Abbruzzetti S.; Bianchini P.; Viappiani C.; Diaspro A./titolo:Develpoment and Characterization of Novel Probes for Photoacoustic Microscopy/doi:10.1016%2Fj.bpj.2020.11.2240/rivista:Biophysical journal (Print)/anno:2021/pagina_da:363A-363A/pagina_a:363A-363A/intervallo_pagine:363A-363A–363A-363A/volume:120

The photoacoustic effect (PA) is a physical phenomenon based on the emission of sound waves following light absorption in material samples. The photon absorption and subsequent non-radiative depletion of the chromophores rapidly rises the temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27c5568e5570243419b5dae5d4d8277f
http://hdl.handle.net/11567/1073752

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání