Photoswitchable fluorescent proteins: mechanisms on ultrafast timescales

L Tang, C Fang - International Journal of Molecular Sciences, 2022 - mdpi.com
The advancement of super-resolution imaging (SRI) relies on fluorescent proteins with novel
photochromic properties. Using light, the reversibly switchable fluorescent proteins (RSFPs) …

Photoswitching mechanism of a fluorescent protein revealed by time-resolved crystallography and transient absorption spectroscopy

J Woodhouse, G Nass Kovacs, N Coquelle… - Nature …, 2020 - nature.com
Reversibly switchable fluorescent proteins (RSFPs) serve as markers in advanced
fluorescence imaging. Photoswitching from a non-fluorescent off-state to a fluorescent on …

Chromophore photophysics and dynamics in fluorescent proteins of the GFP family

K Nienhaus, GU Nienhaus - Journal of Physics: Condensed …, 2016 - iopscience.iop.org
Proteins of the green fluorescent protein (GFP) family are indispensable for fluorescence
imaging experiments in the life sciences, particularly of living specimens. Their essential role …

Steric and Electronic Origins of Fluorescence in GFP and GFP-like Proteins

CM Jones, NH List, TJ Martínez - Journal of the American …, 2022 - ACS Publications
Fluorescent proteins have become routine tools for biological imaging. However, their
nanosecond lifetimes on the excited state present computational hurdles to a full …

Infrared spectroscopy reveals multi-step multi-timescale photoactivation in the photoconvertible protein archetype dronpa

SP Laptenok, AA Gil, CR Hall, A Lukacs, JN Iuliano… - Nature …, 2018 - nature.com
Photochromic fluorescent proteins play key roles in super-resolution microscopy and
optogenetics. The light-driven structural changes that modulate the fluorescence involve …

[HTML][HTML] A direct-compatible formulation of the coupled perturbed complete active space self-consistent field equations on graphical processing units

JW Snyder, BS Fales, EG Hohenstein… - The Journal of …, 2017 - pubs.aip.org
We recently developed an algorithm to compute response properties for the state-averaged
complete active space self-consistent field method (SA-CASSCF) that capitalized on sparsity …

Structural Information about the trans-to-cis Isomerization Mechanism of the Photoswitchable Fluorescent Protein rsEGFP2 Revealed by Multiscale Infrared Transient …

LM Uriarte, R Vitale, S Niziński… - The Journal of …, 2022 - ACS Publications
RsEGFP2 is a reversibly photoswitchable fluorescent protein used in super-resolved optical
microscopies, which can be toggled between a fluorescent On state and a nonfluorescent …

Long‐range electrostatics‐induced two‐proton transfer captured by neutron crystallography in an enzyme catalytic site

O Gerlits, T Wymore, A Das, CH Shen… - Angewandte …, 2016 - Wiley Online Library
Neutron crystallography was used to directly locate two protons before and after a pH‐
induced two‐proton transfer between catalytic aspartic acid residues and the hydroxy group …

Serial femtosecond crystallography and ultrafast absorption spectroscopy of the photoswitchable fluorescent protein IrisFP

JP Colletier, M Sliwa, FX Gallat… - The Journal of …, 2016 - ACS Publications
Reversibly photoswitchable fluorescent proteins find growing applications in cell biology, yet
mechanistic details, in particular on the ultrafast photochemical time scale, remain unknown …

High-contrast imaging of reversibly switchable fluorescent proteins via temporally unmixed multispectral optoacoustic tomography

AC Stiel, XL Deán-Ben, Y Jiang, V Ntziachristos… - Optics letters, 2015 - opg.optica.org
Photocontrol of reversibly switchable fluorescent proteins (RSFPs) was used to program
optoacoustic signal time courses that were temporally unmixed to increase the proteins' …