✦ LIBER ✦

Phosphorus nuclear magnetic resonance studies of the pyrophosphate backbone of pyridine coenzymes

✍ Scribed by Ramaswamy H. Sarma; Richard J. Mynott

Publisher: John Wiley and Sons
Year: 1972
Tongue: English
Weight: 486 KB
Volume: 4
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270040419

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Phosphorus nuclear magnetic resonance spectra of pyridine coenzymes show that the reduced and the oxidized coenzymes exhibit different spectral patterns and chemical shifts. The ^31^P{^1^H} NMR spectrum of β‐TPN taken as a function pH indicates that the pKa value for the 2′ phosphate group is 6·0. It was further found that in β‐TPN, the protonation of the 2′ phosphate group selectively perturbs one ^31^P resonance of the pyrophosphate backbone.

📜 SIMILAR VOLUMES

Nuclear magnetic resonance study of the

Nuclear magnetic resonance study of the configurational equilibria of ranitidine in solution

✍ Carlos F. G. C. Geraldes; Victor M. S. Gil; M. Helena S. F. Teixeira; F. Teixeir 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 391 KB

Nitrogen-15 nuclear magnetic resonance s

Nitrogen-15 nuclear magnetic resonance studies of hydrogen bonding and proton transfer in some pyridine trifluoroacetates in dichloromethane

✍ Z. Dega-Szafran; M. Szafran; L. Stefaniak; C. Brevard; M. Bourdonneau 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 399 KB

The "N NMR chemical shifts of ten substituted pyridines (B) and their complexes with trifluoroacetic acid (AHB) were measured at the natural abundance level in dichloromethane. The plot of the relative chemical shifts [A6("N) = G(AHB) -6(B)] against ApK, gives a titration curve which reflects a prot

Proton nuclear magnetic resonance spectr

Proton nuclear magnetic resonance spectroscopy studies of the inclusion complex of piroxicam with β-cyclodextrin

✍ G. Fronza; A. Mele; E. Redenti; P. Ventura 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 326 KB 👁 1 views

Proton nuclear magnetic resonance spectroscopy showed that piroxicam sodium salt forms an inclusion complex with beta-cyclodextrin in aqueous solution. The 1:1 stoichiometry of the complex was determined by the continuous variation method. Significant nuclear Overhauser effects were observed between

Extending the Size of Protein–RNA Comple

Extending the Size of Protein–RNA Complexes Studied by Nuclear Magnetic Resonance Spectroscopy

✍ Cameron D. Mackereth; Bernd Simon; Michael Sattler 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB 👁 2 views

Computational Aspects of the Study os Bi

Computational Aspects of the Study os Biological Macromolecules by Nuclear Magnetic Resonance Spectroscopy

✍ S.B W. 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 225 KB

Nuclear magnetic resonance study of the

Nuclear magnetic resonance study of the sodium salt of mutalomycin, a structural analog of lonomycin

✍ Weiguo Zhang; Marc J. O. Anteunis; Frans A. M. Borremans 📂 Article 📅 2010 🏛 Wiley (John Wiley & Sons) ⚖ 337 KB

The complete assignment of the proton NMR spectrum of the sodium salt of mutalomycin in chloroform was obtained by applying homo-and heteronuclear shift correlation techniques. From the observed chemical shifts and coupling constants the conformation of the title compound is discussed, in relation t