Ontology highlight
ABSTRACT:
SUBMITTER: Schenkl S
PROVIDER: S-EPMC1449653 | biostudies-literature | 2006 Mar
REPOSITORIES: biostudies-literature
Schenkl S S van Mourik F F Friedman N N Sheves M M Schlesinger R R Haacke S S Chergui M M
Proceedings of the National Academy of Sciences of the United States of America 20060306 11
A visible-pump/UV-probe transient absorption is used to characterize the ultrafast dynamics of bacteriorhodopsin with 80-fs time resolution. We identify three spectral components in the 265- to 310-nm region, related to the all-trans retinal, tryptophan (Trp)-86 and the isomerized photoproduct, allowing us to map the dynamics from reactants to products, along with the response of Trp amino acids. The signal of the photoproduct appears with a time delay of approximately 250 fs and is characterize ...[more]