𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Conformations of side chains of somatostatin very high field proton NMR studies

✍ Scribed by David H. Live; Donald G. Davis; William C. Agosta; David Cowburn


Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
425 KB
Volume
19
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The high field proton NMR spectra (500 and 600 MHz) of the peptide hormone somatostatin in D~2~O are reported. The results obtained are used to derive values of the couplings and chemical shifts related to the solution conformation of several of the side chains. This work resolves a discrepancy in the literature concerning the assignments of resonances in the spectrum. It also provides a means of testing the accuracy of obtaining values for these couplings and shifts in previous 2D NMR studies at lower field from strongly coupled multiplets in spectra of this complexity.


πŸ“œ SIMILAR VOLUMES


Very high frequency proton NMR studies o
✍ Jay A. Glasel; Herbert W. Reiher πŸ“‚ Article πŸ“… 1985 πŸ› John Wiley and Sons 🌐 English βš– 696 KB

The solution conformational properties of the opiate agonist-antagonist pairs morphinc+nalorphine and oxymorphoncwmloxone have been investigated by NMR spectroscopy of their salts and free bases in aqueous and uon-aqueous solutions, respectively. Nitrogen inversion in the piperidine ring takes place

High-field proton NMR studies of apple j
✍ P. S. Belton; I. Delgadillo; A. M. Gil; P. Roma; F. Casuscelli; I. J. Colquhoun; πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 410 KB πŸ‘ 2 views

High-Ðeld (11.7 and 14 T) proton high-resolution NMR spectra of apple juices obtained from a variety of cultivars are reported and partial spectral assignments are made. There are signiÐcant spectral di †erences between cultivars, which may be of value in identifying the origins of apple juices. The

Proton high-field NMR study of tomato ju
✍ Anatoli P. Sobolev; Annalaura Segre; Raffaele Lamanna πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 169 KB

## Abstract A detailed analysis of the proton high‐field (600 MHz) NMR spectra of tomato juice and pulp is reported for the first time. A combination of __J__‐resolved, COSY, TOCSY, DOSY, ^1^H–^13^C HSQC and ^1^H–^13^C HMBC 2D sequences was used to assign each spin system and to separate the compon

1H and 13C NMR study of the neomenthyl h
✍ Gordon L. Lange; Christine Gottardo πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 244 KB

## Abstract Complete analyses o the ^1^H NMR spectra of neomethyl iodide (1), the bromide (2) and the chloride (3) are reported. Of paticular interest is the very high‐field resonance at βˆ’0.16 ppm in 1 which is assigned to H‐4. The same poton in the bromide is also found upfield at 0.78 ppm. H‐4 in