NUCLEAR MAGNETIC RESONANCE STUDIES: PART I. THE CHEMICAL SHIFT OF THE FORMYL PROTON IN AROMATIC ALDEHYDES
نویسندگان
چکیده
منابع مشابه
Proton-nuclear magnetic resonance studies of the aromatic spin systems of Escherichia coli adenylate kinase.
Escherichia coli adenylate kinase has a very well resolved proton nuclear magnetic resonance spectrum in the region containing signals from aromatic amino acid side-chains. We found that the protein is structurally stable over a wide pH range and renatures spontaneously after acidic as well as basic denaturation. Only one out of the three histidyl imidazole rings titrates on changing the pH and...
متن کاملmesuring the staff technology readiness, the case of a multi national chemical company operating in iran
چکیده ندارد.
15 صفحه اولNUCLEAR MAGNETIC RESONANCE STUDY OF THE STRUCTURE OF GLYOXALDIHYDRAZONE
Study of the nuclear magnetic resonance spectra of glyoxaldihydrazone in dimethylsulfoxide and deuterochlorofonn leads to the conclusion that this compound exists predominantly in non-chelate structure
متن کاملProton nuclear magnetic resonance studies of myoglobin in H2O.
Exchangeable hydrogens in proteins can be identified by comparison of nuclear magnetic resonance spectra obtained in H(2)O and in D(2)O. In oxymyoglobin and myoglobin we have been able to observe resonances of the NH protons of the two tryptophans, as well as one resonance from arginine and one from histidine in the range -10 to -15 ppm downfield from 3-(trimethylsilyl)propanesulfonic acid (sod...
متن کاملDetermination of the antisymmetric part of the chemical shift anisotropy tensor via spin relaxation in nuclear magnetic resonance.
Relaxation processes induced by the antisymmetric part of the chemical shift anisotropy tensor (henceforth called anti-CSA) are usually neglected in NMR relaxation studies. It is shown here that anti-CSA components contribute to longitudinal relaxation rates of the indole (15)N nucleus in tryptophan in solution at different magnetic fields and temperatures. To determine the parameters of severa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1962
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v62-165