Applications of nuclear magnetic resonance in biochemistry: An analysis of the aromatic region of the proton magnetic resonance spectrum of staphylococcal nuclease

1968 ◽  
Vol 243 (1) ◽  
pp. 367-374 ◽  
Author(s):  
John L. Markley ◽  
Irving Putter ◽  
Oleg Jardetzky
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Spectrum ◽  
Staphylococcal Nuclease ◽  
Proton Magnetic Resonance Spectrum ◽  
Aromatic Region ◽  
Nuclear Magnetic

THE ANALYSIS OF NUCLEAR MAGNETIC RESONANCE SPECTRA: IV. FOUR NUCLEI: AB3

1958 ◽  
Vol 36 (9) ◽  
pp. 1302-1307 ◽  
Author(s):  
R. J. Abraham ◽  
J. A. Pople ◽  
H. J. Bernstein
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Spectrum ◽  
Proton Magnetic Resonance Spectrum ◽  
Methyl Mercaptan ◽  
Nuclear Magnetic Resonance Spectra ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The proton magnetic resonance spectrum of methyl mercaptan has been analyzed on the basis of the nuclear grouping AB3. The spectrum calculated for [Formula: see text] agrees very well with that observed.

The nuclear magnetic resonance spectra of pyrrole and [N-D]pyrrole

1969 ◽  
Vol 22 (6) ◽  
pp. 1199 ◽  
Author(s):  
GF Katekar ◽  
AG Moritz
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Proton Magnetic Resonance ◽  
Resonance Spectrum ◽  
Proton Magnetic Resonance Spectrum ◽  
Proton Spin ◽  
Proton Spectrum ◽  
Proton Proton ◽  
Nuclear Magnetic Resonance Spectra

The proton magnetic resonance spectrum at 60 MHz of pyrrole, spin- decoupled from 14N, has been studied under high resolution. Similar studies have been made on [N-D]pyrrole in which the proton spectrum was obtained simultaneously spin-decoupled from both the 14K and 2H nuclei. Analysis of the 13C-H spectra of pyrrole and [N-D]pyrrole, observed in natural abundance, gave values for all six proton-proton spin-spin couplings. Values for some of the couplings have been obtained directly and unambiguously from the spectra of samples of [S-H]pyrrole and [N- D]pyrrole in which the C-H protons have been predominantly exchanged for deuterium. The values for the couplings derived are J1,2 2.60, J1,3 2.45, J2,3 2.69, J2,4 1.44, J2,5 1.87, and J3,4 3.34 Hz.

Selective Simultaneous Proton Magnetic Resonance Labelling of Hydrophilic and Hydrophobic Regions of Phospholipid Vesicles. Effect of Polar and Apolar Reagents

1973 ◽  
Vol 51 (8) ◽  
pp. 1129-1136 ◽  
Author(s):  
Thomas Nogrady
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Resonance Line ◽  
Proton Magnetic Resonance ◽  
Resonance Spectrum ◽  
Nuclear Magnetic Resonance Line ◽  
Simultaneous Observation ◽  
Hydrocarbon Chains ◽  
Resonance Line Width ◽  
Nuclear Magnetic

Methyl-12-dimethylsilastearate was synthesized and incorporated by sonication into lecithin vesicles. In the resulting mixed vesicle the nuclear magnetic resonance line width of the Si-methyl resonance line is proportional to the lecithin–silastearate ratio, indicating interaction between the hydrocarbon chains of the phospholipid and the labelled fatty acid ester reporter molecule. The Si-methyl line reports selectively perturbations of the structure of hydrophobic regions as shown by addition of hydrocarbons. The N-methyl resonance line of lecithin is not affected by these changes, but indicates selectively effects on the hydrophilic exterior of the micelle produced by salts. The mixed vesicle may therefore be used as a membrane model allowing simultaneous observation of effects on the exterior and interior of the lipid bilayer.The silastearate label was successfully incorporated into Acholeplasma laidlawii membrane, which however failed to give a sufficiently resolved nuclear magnetic resonance spectrum.

Proton magnetic resonance spectrum of 4-pyrone, chromone and xanthone

1966 ◽  
Vol 22 (7) ◽  
pp. 1391
Author(s):  
Caroline T. Mathis ◽  
J.H. Goldstein
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Spectrum ◽  
Proton Magnetic Resonance Spectrum
Sign in / Sign up

Export Citation Format

Share Document