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2015 ; 54
(31
): 4770-83
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Insights into Protein Structure and Dynamics by Ultraviolet and Visible Resonance
Raman Spectroscopy
#MMPMID26219819
López-Peña I
; Leigh BS
; Schlamadinger DE
; Kim JE
Biochemistry
2015[Aug]; 54
(31
): 4770-83
PMID26219819
show ga
Raman spectroscopy is a form of vibrational spectroscopy based on inelastic
scattering of light. In resonance Raman spectroscopy, the wavelength of the
incident light falls within an absorption band of a chromophore, and this overlap
of excitation and absorption energy greatly enhances the Raman scattering
efficiency of the absorbing species. The ability to probe vibrational spectra of
select chromophores within a complex mixture of molecules makes resonance Raman
spectroscopy an excellent tool for studies of biomolecules. In this Current
Topic, we discuss the type of molecular insights obtained from steady-state and
time-resolved resonance Raman studies of a prototypical photoactive protein,
rhodopsin. We also review recent efforts in ultraviolet resonance Raman
investigations of soluble and membrane-associated biomolecules, including
integral membrane proteins and antimicrobial peptides. These examples illustrate
that resonance Raman is a sensitive, selective, and practical method for studying
the structures of biological molecules, and the molecular bonding, geometry, and
environments of protein cofactors, the backbone, and side chains.