Quantitative prediction of fluorescence quantum yields for tryptophan in proteins

PR Callis, T Liu - The Journal of Physical Chemistry B, 2004 - ACS Publications
Variation of intrinsic tryptophan (Trp) fluorescence intensity and lifetime in proteins is widely
exploited to follow changes in protein structure such as folding/unfolding, substrate or ligand …

Ionization Potentials of Fluoroindoles and the Origin of Nonexponential Tryptophan Fluorescence Decay in Proteins

T Liu, PR Callis, BH Hesp, M de Groot… - Journal of the …, 2005 - ACS Publications
This work reports an explanation for the unusual monoexponential fluorescence decay of 5-
fluorotryptophan (5FTrp) in single-Trp mutant proteins [Broos, J.; Maddalena, F.; Hesp, BHJ …

[HTML][HTML] Conformational effects on tryptophan fluorescence in cyclic hexapeptides

CP Pan, MD Barkley - Biophysical journal, 2004 - cell.com
The peptide bond quenches tryptophan fluorescence by excited-state electron transfer,
which probably accounts for most of the variation in fluorescence intensity of peptides and …

Dependence of tryptophan emission wavelength on conformation in cyclic hexapeptides

CP Pan, PR Callis, MD Barkley - The Journal of Physical …, 2006 - ACS Publications
The wavelength of maximum emission of tryptophan depends on the local electrostatic
environment of the indole chromophore. The time-resolved emission spectra of seven rigid …

Multiple conformational state of human serum albumin around single tryptophan residue at various pH revealed by time-resolved fluorescence spectroscopy

T Otosu, E Nishimoto, S Yamashita - Journal of biochemistry, 2010 - academic.oup.com
Human serum albumin (HSA) plays important roles in transport of fatty acids and binding a
variety of drugs and organic compounds in the circulatory system. This protein experiences …

Mutational effects on protein structural changes and interdomain interactions in the blue‐light sensing LOV protein YtvA

A Losi, E Ghiraldelli, S Jansen… - Photochemistry and …, 2005 - Wiley Online Library
Mutagenesis studies on the phototropin‐related protein YtvA from Bacillus subtilis have
revealed the role of selected structural elements in interdomain communication. The LOV …

Optical spectroscopic methods for probing the conformational stability of immobilised enzymes

A Ganesan, BD Moore, SM Kelly, NC Price… - …, 2009 - Wiley Online Library
Abstract Structure of immobilised enzymes: Circular dichroism, infrared and fluorescence
spectroscopic methods are used to characterise in situ structural stability of enzymes …

Solid-State 19F NMR Spectroscopy Reveals That Trp41 Participates in the Gating Mechanism of the M2 Proton Channel of Influenza A Virus

R Witter, F Nozirov, U Sternberg, TA Cross… - Journal of the …, 2008 - ACS Publications
The integral membrane protein M2 of influenza A virus assembles as a tetrameric bundle to
form a proton-conducting channel that is activated by low pH. The side chain of His37 in the …

Effect of conformation on the photodegradation of Trp-and cystine-containing cyclic peptides: octreotide and somatostatin

O Mozziconacci, C Schöneich - Molecular pharmaceutics, 2014 - ACS Publications
The synthetic cyclic octapeptide octreotide is less stable under UV and fluorescent lights
than its naturally occurring derivative somatostatin. Upon irradiation at λ> 290 nm, and in the …

Specific features of the temperature dependence of tryptophan fluorescence lifetime in the temperature range of− 170–20° C

PP Knox, VV Gorokhov, BN Korvatovsky… - … of Photochemistry and …, 2020 - Elsevier
The temperature dependence of tryptophan fluorescence lifetime in an aqueous solution,
aqueous solutions of glycerol (50 and 75%, v/v) and dimethyl sulfoxide (DMSO)(50 and …