Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy - interpretation by molecular mechanics (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy - interpretation by molecular mechanics (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.jinorgbio.2006.09.031 (literal)

Alternative label

• Tan, ML; Bizzarri, AR; Xiao, YM; Cannistraro, S; Ichiye, T; Manzoni, C; Cerullo, G; Adams, MWW; Jenney, FE; Cramer, SP (2007)
  Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy - interpretation by molecular mechanics
  in Journal of inorganic biochemistry
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Tan, ML; Bizzarri, AR; Xiao, YM; Cannistraro, S; Ichiye, T; Manzoni, C; Cerullo, G; Adams, MWW; Jenney, FE; Cramer, SP (literal)

Pagina inizio

• 375 (literal)

Pagina fine

• 384 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S016201340600287X (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 101 (literal)

Rivista

• Journal of inorganic biochemistry (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 10 (literal)

Note

• Scopu (literal)
• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA; Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA; Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA; Georgetown Univ, Dept Chem, Washington, DC 20057 USA; Univ Tuscia, INFM, CNISM, Biophys & Nanosci Ctr, I-01100 Viterbo, Italy; Politecn Milan, Dipartimento Fis, CNR, INFM,Natl Lab Ultrafast & Ultraintense Opt Sci, I-20133 Milan, Italy (literal)

Titolo

• Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy - interpretation by molecular mechanics (literal)

Abstract

• We have used impulsive coherent vibrational spectroscopy (ICVS) to study the Fe(S-CYS)(4) site in oxidized rubredoxin (Rd) from Pyrococcus furiosus (Pf). In this experiment, a 15 fs visible laser pulse is used to coherently pump the sample to an excited electronic state, and a second < 10 fs pulse is used to probe the change in transmission as a function of the time delay. PfRd was observed to relax to the ground state by a single exponential decay with time constants of similar to 255-275 fs. Superimposed on this relaxation are oscillations caused by coherent excitation of vibrational modes in both excited and ground electronic states. Fourier transformation reveals the frequencies of these modes. The strongest ICV mode with 570 nm excitation is the symmetric Fe-S stretching mode near 3 10 cm(-1), compared to 313 cm(-1) in the low temperature resonance Raman. If the rubredoxin is pumped at 520 nm, a set of strong bands occurs between 20 and 110 cm-1. Finally, there is a mode at similar to 500 cm(-1) which is similar to features near 508 cm(-1) in blue Cu proteins that have been attributed to excited state vibrations. Normal mode analysis using 488 protein atoms and 558 waters gave calculated spectra that are in good agreement with previous nuclear resonance vibrational spectra (NRVS) results. The lowest frequency normal modes are identified as collective motions of the entire protein or large segments of polypeptide. Motion in these modes may affect the polar environment of the redox site and thus tune the electron transfer functions in rubredoxins. (c) 2006 Elsevier Inc. All rights reserved. (literal)

Prodotto di

• Fotonica ultrabreve dall'infrarosso al EUV: applicazioni a materiali e dispositivi per ICT, magnetismo, biomedicina e nanoscienze (MD.P03.008.001) (Modulo)

Autore CNR

• GIULIO CERULLO (Persona)
• CRISTIAN MANZONI (Persona)

Insieme di parole chiave

• Keywords of "Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy - interpretation by molecular mechanics" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• CRISTIAN MANZONI (Persona)
• GIULIO CERULLO (Persona)

Prodotto

• Fotonica ultrabreve dall'infrarosso al EUV: applicazioni a materiali e dispositivi per ICT, magnetismo, biomedicina e nanoscienze (MD.P03.008.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of inorganic biochemistry (Rivista)

Insieme di parole chiave di

• Keywords of "Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy - interpretation by molecular mechanics" (Insieme di parole chiave)