| First hyperpolarizability of the natural aromatic amino acids tryptophan, tyrosine, and phenylalanine and the tripeptide lysine-tryptophan-lysine determined by hyper-Rayleigh scattering. | |
| | |
MedLine Citation:
|
PMID: 20939548 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
We report the first hyperpolarizability of tryptophan (Trp) and tyrosine (Tyr) and an upper limit for that of phenylalanine (Phe), three natural aromatic amino acids. The measurements were performed with hyper-Rayleigh scattering in an aqueous Tris buffer solution at a pH of 8.5 and 150 mM salt concentration with a fundamental wavelength of 780 nm. A value of (4.7 ± 0.7) × 10(-30) esu is found for Trp and (4.1 ± 0.7) × 10(-30) esu for Tyr whereas the upper limit of 1.4 × 10(-30) esu is found for that of Phe due to its limited solubility. The influence of the presence of lysine (Lys) in close vicinity of Trp is investigated with a measurement of the first hyperpolarizabilty of Trp in an excess of Lys and compared to the first hyperpolarizability obtained for the tripeptide Lys-Trp-Lys. The clear decrease of the values measured in these two cases indicates that the first hyperpolarizabilty of Trp is very sensitive to its local environment. |
| | |
Authors:
|
J Duboisset; G Matar; I Russier-Antoine; E Benichou; G Bachelier; Ch Jonin; D Ficheux; F Besson; P F Brevet |
Related Documents
:
|
2420368 - Digestive end products release pancreatic enzymes from particulate cellular pools, part... 20628758 - Two o-methyltransferases from picea abies: characterization and molecular basis of diff... 686088 - Tissue concentrations of free amino acids in term human placentas. 9480868 - Hepatic zonation of the catabolism of arginine and ornithine in the perfused rat liver. 17548828 - Raising plasma fatty acid concentration induces increased biogenesis of mitochondria in... 16661688 - Movement of c-compounds from maternal tissue into maize seeds grown in vitro. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The journal of physical chemistry. B Volume: 114 ISSN: 1520-5207 ISO Abbreviation: J Phys Chem B Publication Date: 2010 Nov |
Date Detail:
|
Created Date: 2010-10-29 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101157530 Medline TA: J Phys Chem B Country: United States |
Other Details:
|
Languages: eng Pagination: 13861-5 Citation Subset: IM |
Affiliation:
|
Laboratoire de Spectrométrie Ionique et Moléculaire, UMR CNRS 5579, Université Claude Bernard Lyon1, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne cedex, France. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Reactive molecular dynamics with material-specific coarse-grained potentials: growth of polystyrene ...
Next Document: Beyond Förster resonance energy transfer in linear nanoscale systems.