Time-resolved FTIR spectroscopy of the photointermediates involved in fast transient H(super +) release by proteorphodspin
Article Abstract:
The first vibrational spectral features assignable to an L-like photoproduct of pR, in the form of a negative band at 1742 cm(super -1) in Fourier transform infrared (FTIR) difference spectra measured 20-90 mu s after photolysis in the presence of phosphpolipid at pH 9.5. It concluded that, at pH 9.5, H(super +) release occurs while Asp-97 is still protonated, which is this aspartic acid cannot be the H(super +) release group observed by flash photolysis under similar conditions.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Modeling amino acid side chains in proteins: (super 15)N NMR spectra of guanidino groups in nonpolar environments
Article Abstract:
The solvent and protonation effects that model those that could occur for the arginine side chain in proteins, is revealed on using (super 15)N NMR spectroscopy on dodecylguanidine. It is demonstrated that the (super 15)N chemical shifts of the terminal guanine nitrogens strongly depend on the solvent chosen for measurements.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Thermodynamic characterization of the osmolyte effect on protein stability and the effect of GdnHCl on the protein denatured state
Article Abstract:
The biomolecular interactions of osmolytes or guanidine hydrochloride (GdnHCl) with protein functional groups were explained by determining the apparent transfer free energies of a homologous series of cyclic dipeptides from water to aqueous solutions of osmolytes or GdnHCl.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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