Circular dichroism and

G. D. Fasman, ed.. Circular Dichroism and the Conformational Analysis of Biomolecules, Plenum Press, New York, 1996. 

A. Rodger and B. Norden, Circular Dichroism and Linear LHchmism, Oxford University Press, Oxford, U.K.. 1997. 

A. Electronic Spectroscopy Absorption, Circular Dichroism, and Magnetic Circular Dichroism (MCD) Spectroscopy... 

Recently, peptoid-based mimics of both SP-C and SP-B have been designed to adopt helical secondary structures, and also mimic (to varying degrees) the sequence patterning of hydrophobic and polar residues found in the natural surfactant proteins. Peptoid-based SP-C mimics of up to 22 monomers in length, were synthesized and characterized by in vitro experimental methods [67, 68] (Fig. 1.8). The secondary structure of all molecules was assessed by circular dichroism and found to be helical. The surface activities of these peptoids, in comparison to the actual SP peptides described above, were characterized by surfactometry using... 

The thermodynamic stability of the 3i4-hehx in addition to the requirements for 3i4-helix formation have been studied extensively by NMR spectroscopy, circular dichroism and molecular dynamics. 

Earlier studies using thermal denaturation analysis and spectrophotomet-ric titration with TxA T and CxC-C" containing DNA triplexes showed that coralyne binds strongly to these triplexes by intercalation and does not exhibit a significant sequence-selectivity [222]. In a later study by Morau Allen et al. [217], employing DNase footprinting, thermal denaturation analysis, UV-visible spectrophotometric titrations, circular dichroism and NMR spectroscopy, showed that coralyne is fully intercalated into TxA T triplex DNA whereas in C GxC triplex, it is partially intercalated due to electrostatic repulsion between the cationic alkaloid and the protonated cytosine [217]. Kepler et al. [223] demonstrated that coralyne intercalated to parallel triplex DNA but did not intercalate to antiparallel triplex DNA. Recently Hud and coworkers [219,224] demonstrated that duplex poly(dA) poly(dT) is trans-... 

Labrude, P., Rasolomana, M. Atomization of oxyhemoglobin in the presence of sucrose. Study by circular dichroism and electronic paramagnetic resonance, comparison with freezedrying. S. T. P. Pharma 4 (6), p. 472 80, 1988... 

Using circular dichroism and nuclear magnetic resonance spectrometry, Veatch and coworkers1 established that four conformational species of gramicidin A exist in solution. Two were postulated to be helixes of opposite handedness. 

A. Circular Dichroism and Optical Rotatory Dispersion Spectra. 236... 

BMW Langeveld-Voss, R Janssen, MPT Christiaans, SCJ Meskers, HPJM Dekkers, and EW Meijer, Circular dichroism and circular polarization of photoluminescence of highly ordered poly 3,4-di[(5)-2-methylbutoxy]thiophene, J. Am. Chem. Soc., 118 4908 -909, 1996. 

A Marietta, D Gongalvcz, ON Oliveira Jr., RM Faria, and FEG Guimaraes, Circular dichroism and circularly polarized luminescence of highly oriented Langmuir-Blodgett films of poly(/j-phenylene vinylene), Synth. Met., 119 207-208, 2001. 

FIGURE 13. Vibrational circular dichroism and transmission spectra of (/ )-(+)- and (S)-(—)-N,N-dimethyl-or-phenylethylamine [(R)-(+)- and (S)-(—)-153] in carbon tetrachloride. Reprinted with permission from Reference 140. Copyright (1976) American Chemical Society... 

The induced circular dichroism and Cotton effect have been investigated for quaternary ammonium ions with N anchored on an asymmetric C, when hosted in calix[n]arene molecules (215, n = 4, 6, 8)430. 

We shall not cover such other methods as theoretical calculations of the sign of optical rotation, circular dichroism, and so on in solution these have been recently reviewed in an excellent book by Mason (12). 

Tao P. and Sosnick T. R. Intermediates and kinetic traps in the folding of a large ribo-zyme revealed by circular dichroism and UV absorbance spectroscopies and catalytic activity. Nat Struct. Biol. (1997) 4(11) 931-938. 

J. D. Johnson and J. D. Potter, Detection of two classes of Ca2+ binding sites in troponin C with circular dichroism and tyrosine fluorescence, J. Biol. Chem. 253, 3775-3777 (1978). 

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