NMR Studies of DNA Support the Role of Pre-Existing Minor Groove Variations in Nucleosome Indirect Readout

Biochemistry ◽  
2014 ◽  
Vol 53 (35) ◽  
pp. 5601-5612 ◽  
Author(s):  
Xiaoqian Xu ◽  
Akli Ben Imeddourene ◽  
Loussiné Zargarian ◽  
Nicolas Foloppe ◽  
Olivier Mauffret ◽  
...  
2003 ◽  
Vol 278 (15) ◽  
pp. 12955-12960 ◽  
Author(s):  
Steven A. Mauro ◽  
David Pawlowski ◽  
Gerald B. Koudelka

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Lyudmila V. Parfenova ◽  
Pavel V. Kovyazin ◽  
Almira Kh. Bikmeeva ◽  
Eldar R. Palatov

The activity and chemoselectivity of the Cp2ZrCl2-XAlBui2 (X = H, Bui) and [Cp2ZrH2]2-ClAlEt2 catalytic systems activated by (Ph3C)[B(C6F5)4] or B(C6F5)3 were studied in reactions with 1-hexene. The activation of the systems by B(C6F5)3 resulted in the selective formation of head-to-tail alkene dimers in up to 93% yields. NMR studies of the reactions of Zr complexes with organoaluminum compounds (OACs) and boron activators showed the formation of Zr,Zr- and Zr,Al-hydride intermediates, for which diffusion coefficients, hydrodynamic radii, and volumes were estimated using the diffusion ordered spectroscopy DOSY. Bis-zirconium hydride clusters of type x[Cp2ZrH2∙Cp2ZrHCl∙ClAlR2]∙yRnAl(C6F5)3−n were found to be the key intermediates of alkene dimerization, whereas cationic Zr,Al-hydrides led to the formation of oligomers.


PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e69933 ◽  
Author(s):  
Deepak K. Jangir ◽  
Suman Kundu ◽  
Ranjana Mehrotra
Keyword(s):  

2021 ◽  
Author(s):  
Sebastian Ponath ◽  
Chetan Joshi ◽  
Amy T. Merrill ◽  
Volker Schmidts ◽  
Kim Greis ◽  
...  

A comprehensive analysis of the organocatalytic α‐chlorination of aldehydes with N‐chloroimides and differ‐ ent catalysts is presented. For this reaction, alternate mechanisms were proposed that differ in the role of resting state intermediates and the rationalization of the observed enantioselectivity. This manuscript aims at resolving these funda‐ mental questions on the basis of rigorous structural characterization of intermediates (configuration and conformation), NMR studies, ion mobility‐mass spectrometry, concentration profiles, isotope studies, and DFT calculations. <br>


Author(s):  
Paola Monti ◽  
Giorgia Foggetti ◽  
Paola Menichini ◽  
Alberto Inga ◽  
Barry Gold ◽  
...  

2006 ◽  
Vol 118 (46) ◽  
pp. 7973-7976 ◽  
Author(s):  
Yoonkyung Kim ◽  
Aaron M. Leconte ◽  
Yoshiyuki Hari ◽  
Floyd E. Romesberg
Keyword(s):  

2015 ◽  
Vol 13 (17) ◽  
pp. 4960-4966 ◽  
Author(s):  
N. Dyubankova ◽  
E. Sochacka ◽  
K. Kraszewska ◽  
B. Nawrot ◽  
P. Herdewijn ◽  
...  
Keyword(s):  

NMR studies of the D-arm of tRNAiMet revealed the crucial role of dihydrouridine nucleoside in folding of the oligo.


2004 ◽  
Vol 126 (36) ◽  
pp. 11338-11349 ◽  
Author(s):  
Nahoum G. Anthony ◽  
Blair F. Johnston ◽  
Abedawn I. Khalaf ◽  
Simon P. MacKay ◽  
John A. Parkinson ◽  
...  

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