Side chain dependence of intensity and wavenumber position of amide I' in IR and visible Raman spectra of XA and AX dipeptides

Article Abstract:

A series of AX and XA dipeptides in D(sub 2)O were investigated by FTIR, isotropic, and anisotropic Raman spectroscopy at acidic, neutral, and alkaline pD, to probe the influence of amino acid side chains on the amide I' band. A set of spectral parameters were obtained for each peptide, including intensities, wavenumbers, half-widths, and dipole moments, and it was found that these amide I' parameters were dependent on the side chain.

Usage, Amino acids, Dipole moments, Chemical properties

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Static normal coordinate deformations of the heme group in mutants of ferrocytochrome c from Saccharomyces cerevisiae probed by resonance Raman spectroscopy

Article Abstract:

The mutations of yeast iso-1-cytochrome c that replace polar by nonpolar residues in the heme vicinity investigated by employing Raman dispersion was observed to show most pronounced effect for Y67F which increases the triclinic [B.sub.2g] deformation of the heme group.

Food preparations, not elsewhere classified, All Other Miscellaneous Food Manufacturing, Brewers' Yeast, Analysis, Genetic aspects, Yeast fungi, Yeasts (Fungi), Brewer's yeast, Saccharomyces cerevisiae

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Structural disorder of native horseradish peroxidase C probed by resonance Raman and low-temperature optical absorption

Article Abstract:

Low-temperature absorption and depolarization ratio dispersion is measured. The strong B(sub 2)(sub g) gives quantum mixed spin state characteristics of class III peroxidases.

Quantum chemistry, Peroxidase

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