title: Light-induced helix formation.
abstract: This study shows that incorporation of [Rub2m-OH]2+ at the N-terminus of the Fs peptide enhances its stability by approximately 0.15 kcal/mol through the mechanism of dipole-dipole coupling at the excited state, suggesting that photoinduced charge generation at a well-controlled and specific location provides a convenient means to trigger helix-coil transition on nanosecond or even faster time scales.
authors.affiliation: Department of Chemistry, University of Pennsylvania, Philadelphia 19104, USA.
authors.forename: Cheng-Yen
authors.initials: CY
authors.lastname: Huang
authors.forename: Shu
authors.initials: S
authors.lastname: He
authors.forename: William F
authors.initials: WF
authors.lastname: DeGrado
authors.forename: Dewey G
authors.initials: DG
authors.lastname: McCafferty
authors.forename: Feng
authors.initials: F
authors.lastname: Gai
mesh_terms: D007700:Kinetics; D008027:Light; D009842:Oligopeptides / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry; D017510:Protein Folding; D017433:Protein Structure, Secondary / Q000528:radiation effects*; D012428:Ruthenium / Q000737:chemistry; D013055:Spectrophotometry, Infrared
chemical_list: D009842:Oligopeptides; D009942:Organometallic Compounds; D012428:Ruthenium