نتایج جستجو برای: circular dichroism spectroscopy
تعداد نتایج: 236933 فیلتر نتایج به سال:
The solution structures of (3R,4S)- and (3S,4R)- 4-(4-fluorophenyl)-3-hydroxylmethyl- 1-methylpiperidine, which are intermediates in the synthesis of the two pharmaceuticals paroxetine and femoxetine, were studied by vibrational circular dichroism (VCD) spectroscopy. In addition, six derivatives with different substituents attached to the C3 atom were prepared and their VCD and absorption spect...
The hexameric Escherichia coli RNA chaperone Hfq (Hfq(Ec)) is involved in riboregulation of target mRNAs by small trans-encoded RNAs. Hfq proteins of different bacteria comprise an evolutionarily conserved core, whereas the C-terminus is variable in length. Although the structure of the conserved core has been elucidated for several Hfq proteins, no structural information has yet been obtained ...
In this study, we were synthesized Fe3O4@LDH@Lamivudine and characterized by FT-IR spectroscopy,XRD and TEM. The interaction of this nanoparticle with CT-DNA was investigated by viscosity, circulardichroism (CD), Uv-Visible and fluorescence spectroscopy. Among all nanocarriers which applied as drugdelivery vectors, layered double hydroxides (LDHs) with exchangeable anions in t...
Intramolecular folding in three tandem guanine repeats of human telomeric DNA has been investigated using opticaltweezers, MD simulation and circular dichroism. A mechanically and thermodynamically stable species in this sequence shows a structure consistent with a triplex conformation. A similar species has also been observed to coexist with a G-quadruplex in a DNA sequence with four tandem gu...
The absorption and circular dichroism spectra of the intercalation complexes with DNA of the 9-aminoacridine chromophore in monoand bisfunctional forms have been determined in the visible/near-ultraviolet region. The experimental spectra were deconvoluted into contributions from three (It*, n) transitions and the dipole and rotatory strengths of one long-axis and one shortaxis polarized transit...
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