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FTIR Spectroscopy of Metalloproteins
2014Absorption of infrared radiation by proteins gives important information about their structure and function. The most intense infrared bands correspond to the overlap of all the peptide bond absorption. Additionally, in many metalloproteins their prosthetic groups have intrinsic ligands or bind substrates/inhibitors that absorb intensively in the ...
Oscar, Gutiérrez-Sanz +2 more
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Fourier transform infrared (FTIR) spectroscopy
Photosynthesis Research, 2009Fourier transform infrared (FTIR) spectroscopy probes the vibrational properties of amino acids and cofactors, which are sensitive to minute structural changes. The lack of specificity of this technique, on the one hand, permits us to probe directly the vibrational properties of almost all the cofactors, amino acid side chains, and of water molecules ...
Berthomieu, Catherine +1 more
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Raman and FTIR spectroscopies of fluorescein in solutions
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2001Raman and Fourier transform-infra red (FT-IR) spectroscopies of fluorescein in aqueous solutions have been investigated in the pH range from 9.1 to 5.4. At pH 9.1 fluorescein is in the dianion form. At pH 5.4, fluorescein is a mixture of monoanion (approximately 85%), dianion and neutral forms (together approximately 15%).
L, Wang +3 more
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FTIR Spectroscopy of Flavin-Binding Photoreceptors
2014Light-induced difference Fourier transform infrared (FTIR) spectroscopy is a powerful, sensitive, and informative method to study structure-function relationships in photoreceptive proteins. Strong absorption of water in the IR region is always problematic in this method, but if water content in the sample is controlled during measurements, this method
Daichi, Yamada, Hideki, Kandori
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Secondary Structure of Monoamine Oxidase by FTIR Spectroscopy
Biochemical and Biophysical Research Communications, 1995The secondary structure of human monoamine oxidase A and bovine monoamine oxidase B has been investigated by Fourier Transform Attenuated Total Reflection Spectroscopy (FTIR ATR). The experimental results are compared for both isoenzymes and the data are incorporated in a statistical attribution of secondary structure of the enzyme describing the ...
Wouters, Jacques +5 more
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FTIR spectroscopy of adsorbed ozone
Chemical Physics Letters, 2020Abstract FTIR spectra of ozone adsorbed at 77 K on a number of oxide adsorbents were investigated. Special attention was paid to the position and isotopic splitting of the band of ν1+3 combination vibration. For titania eight distinct bands were distinguished and put in correspondence with the bands of ν1 and ν3 vibrations.
A. Tsyganenko +3 more
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FTIR spectroscopy applied to woodflour
Composite Interfaces, 1996The features of infrared spectra of woodflour obtained by transmission and diffuse reflectance (DRIFT) are discussed. Intrinsic differences between the two techniques, as well as differences in sample preparation for transmission (pressed pellet) or DRIFT (simple mixing with powered KBr), affect the appearance of the spectra recorded.
N.E. Marcovich +2 more
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FTIR spectroscopy of borate crystals
SPIE Proceedings, 1999ABSTRACT Infrared absorption spectroscopy has been used to study the vibrational modes in various borate crystals, the electronictransitions of Nd3 ions in NYAB, and the stretching vibration of hydroxyl ions in CLBO ciystals.Keywords: borates, CLBO, YAB, FTIR spectroscopy, vibrations, Off ions 1.
Laszlo Kovacs +3 more
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FTIR Spectroscopy of a Viral Rhodopsin, OLPVR2
The Journal of Physical Chemistry BMicrobial rhodopsins in giant viruses are classified into two major classes: VR1 and VR2. Organic Lake Phycodnavirus Rhodopsin 2 (OLPVR2) belongs to the VR2 family, while OLPVR1 is a viral channelrhodopsin. OLPVR2 is known to form a pentamer, and it was proposed that OLPVR2 is a light-gated ion channel, whose ion pathway is not inside the monomer but ...
Mako Aoyama +2 more
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Investigation of Lignins by FTIR Spectroscopy
Macromolecular Symposia, 2008AbstractSummary: Applying special computer mathematical treatments to increase resolution of experimental spectra there were established a set of stable characteristic bands for isolated softwood lignins. In the 740–1620 cm−1 spectral range the band maximum positions did not change but values of bandwidths and peak intensities were varied in limits 15%
Olga Derkacheva, Dmitry Sukhov
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