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14 833 (0,642s)

Result

Why is the N1-H stretch vibration frequency of guanine shifted upon dimerization to the red and the amino N-H stretch vibration frequency to the blue?

shift of the amino group N-H stretch vibrations in all guanine dimer structuresThree isomers of the guanine dimer (K9K9-1, K9K7-1 and K7K7-1) possessing two N-bonding. Besides the red shifts of the N-H stretch vib...

CF - Fyzikální chemie a teoretická chemie

  • 2003
  • Jx
Result

Benchmark theoretical and experimental study on 15N NMR Shifts of oxidatively damaged guanine

The 15N NMR shifts of 9-ethyl-8-oxoguanine (OG) were calculated and measured in liquid DMSO and in crystal. The calculated change of N9 NMR shift owing to notable N9 can be used for accurate structural interpretation of 15N NMR ...

Biophysics

  • 2016
  • Jimp
  • Link
Result

Theoretical Calculation of the NMR Spin-Spin Coupling Constants and the NMR Shifts Allow Distinguishability between the Specific Direct and the Water-Mediated Binding of a Divalent Metal Cation

reliable shifts in NMR parameters, hydrated guanine was utilized. coupling constants and NMR shifts were used for the discrimination between the inner of the hydrated cation either with oxygen O6 or with nitrogen N7 of

CF - Fyzikální chemie a teoretická chemie

  • 2004
  • Jx
Result

Guanine adsorption on the Cu(110) surface

The adsorption of guanine on Cu(110) has been studied by soft X-ray that hydrogen bonding causes a significant core level shift in the thin film. At saturation coverage, guanine is tilted at 70 degrees with respect to the s...

BM - Fyzika pevných látek a magnetismus

  • 2011
  • Jx
  • Link
Result

Study of the Interactions Between Hydroxyl Radicals and Purine DNA Bases

The effect of nucleic acid bases (adenine, guanine) on the second reduction step of oxygen (electroreduction of hydrogen peroxide) on the hanging mercury drop electrode (HMDE) or the meniscus-modified silver amalgam electrode (m-AgSAE) was s...

CB - Analytická chemie, separace

  • 2003
  • Jx
Result

G-quadruplex-based structural transitions in 15-mer DNA oligonucleotides varying in lengths of internal oligo(dG) stretches detected by voltammetric techniques

and carbon electrodes. The intensity of guanine oxidation signal at the carbon electrode (peak G(ox)) was observed to increase continuously with number of guanines between 0 and 15, with only a slight positive shift for OD...

CE - Biochemie

  • 2015
  • Jx
  • Link
Result

Benchmark Theoretical and Experimental Study on N-15 NMR Shifts of Oxidatively Damaged Guanine

structural interpretation of N-15 NMR shifts of oxidatively damaged guanine DNA residue.The N-15 NMR shifts of 9-ethyl-8-oxoguanine (OG) were calculated and measured. This benchmark study on N-15 NMR shifts of OG ...

CF - Fyzikální chemie a teoretická chemie

  • 2016
  • Jx
  • Link
Result

N7- and N9-Substituted Purine Analogues - 15N NMR Study

15N NMR chemical shifts of N7- and N9-substituted purine (guanine and adenine shifts determined in liquid state were assigned using GHSQC, GHMQC, GHMBC, asnd to study the principal values of 15N chemical shifts. Th...

CC - Organická chemie

  • 2001
  • D
Result

The Influence of N7 Guanine Modifications on the Strength of Watson-Crick Base Pairing and Guanine N1 acidity

The Influence of N7 Guanine Modifications on the Strength of Watson-Crick Base Pairing and Guanine N1 acidity...

BO - Biofyzika

  • 2003
  • Jx
Result

G-quadruplex-based structural transitions in 15-mer DNA oligonucleotides varying in lengths of internal oligo(dG) stretches detected by voltammetric techniques

and carbon electrodes. The intensity of guanine oxidation signal at the carbon electrode (peak Gox) was observed to increase continuously with number of guanines between 0 and 15, with only a slight positive shift for ODNs...

Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

  • 2021
  • JSC
  • Link
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