The rapid changes in proton spin create an effective heteronuclear decoupling, increasing carbon signal strength on account of the nuclear Overhauser effect ( NOE ) and simplifying the spectrum so that each nonequivalent carbon produces a singlet peak.
22.
With the advent of techniques for suppressing these undesired signals, inverse correlation experiments such as HSQC, HMQC, and HMBC are actually much more common today . " Normal " heteronuclear correlation spectroscopy, in which the hetronucleus spectrum is recorded, is known as HETCOR.
23.
A molecule may be homonuclear, that is, it consists of atoms of one chemical element, as with oxygen ( O 2 ); or it may be heteronuclear, a chemical compound composed of more than one element, as with water ( H 2 O ).
24.
Multidimensional heteronuclear nuclear magnetic resonance ( NMR ) spectroscopy was used to determine the structure of CBDN1 is strikingly similar to that of the bacterial 1, 3-1, 4-beta-glucanases, as well as other sugar-binding proteins with jelly-roll folds.
25.
For the heteronuclear version, the simplest pulse sequence used is called a M�ller Kumar Ernst ( MKE ) experiment, which has a single 90?pulse for the heteronucleus for the preparation period, no mixing period, and applies a decoupling signal to the proton during the detection period.
26.
For a time-independent interaction, i . e . heteronuclear dipolar couplings, CSA and first-order quadrupolar couplings, the anisotropic component is greatly reduced and almost suppressed in the limit of fast spinning, i . e . when the spinning frequency is greater than the width of the interaction.
27.
Typically, the first experiment to be measured with an isotope-labelled protein is a 2D heteronuclear single quantum correlation ( HSQC ) spectrum, where " heteronuclear " refers to nuclei other than 1H . In theory, the heteronuclear single quantum correlation has one peak for each H bound to a heteronucleus.
28.
Typically, the first experiment to be measured with an isotope-labelled protein is a 2D heteronuclear single quantum correlation ( HSQC ) spectrum, where " heteronuclear " refers to nuclei other than 1H . In theory, the heteronuclear single quantum correlation has one peak for each H bound to a heteronucleus.
29.
Typically, the first experiment to be measured with an isotope-labelled protein is a 2D heteronuclear single quantum correlation ( HSQC ) spectrum, where " heteronuclear " refers to nuclei other than 1H . In theory, the heteronuclear single quantum correlation has one peak for each H bound to a heteronucleus.
30.
Moreover, the nucleus of any atom that has a net nuclear spin and that is bonded to a hydrogen atom could potentially be imaged via heteronuclear magnetization transfer MRI that would image the high-gyromagnetic-ratio hydrogen nucleus instead of the low-gyromagnetic-ratio nucleus that is bonded to the hydrogen atom.
