I. 1H-NMR studies of [Sar1]angiotensin II conformation by nuclear Overhauser effect spectroscopy in the rotating frame (ROESY): Clustering of the aromatic rings in dimethylsulfoxide

Peptides ◽  
1990 ◽  
Vol 11 (2) ◽  
pp. 359-366 ◽  
Author(s):  
John M. Matsoukas ◽  
Glen Bigam ◽  
Ning Zhou ◽  
Graham J. Moore
Keyword(s):  
Angiotensin Ii ◽  
1H Nmr ◽  
Nuclear Overhauser Effect ◽  
Rotating Frame ◽  
Aromatic Rings ◽  
Nmr Studies ◽  
Overhauser Effect ◽  
Nuclear Overhauser

1H NMR studies of [N-MeAib1, Tyr(Me)4]ANGII and [N-MeAib1, Tyr(Me)4, Ile8]ANGII in dimethylsulfoxide by nuclear Overhauser effect (NOE) enhancement spectroscopy: cis-trans Isomerism of the His-Pro bond

1990 ◽  
Vol 55 (4) ◽  
pp. 1106-1111 ◽  
Author(s):  
John Matsoukas ◽  
Paul Cordopatis ◽  
Raghav Yamdagni ◽  
Graham J. Moore
Keyword(s):  
1H Nmr ◽  
Nuclear Overhauser Effect ◽  
Nmr Studies ◽  
Restricted Rotation ◽  
Overhauser Effect ◽  
Major Isomer ◽  
Conformational Properties ◽  
Nuclear Overhauser

The conformational properties of the Sarmesin analogues [N-MeAib1, Tyr(Me)4]ANGII and [N-MeAib1, Tyr(Me)4, Ile8]ANGII in hexadeutero-dimethysulfoxide were investigated by Nuclear Overhauser Effect (NOE) Enhancement Studies. Cis-trans isomers (ratio 1 : 6) due to restricted rotation of the His-Pro bond were observed. Interresidue interactions between the His Cα proton and the two Pro Cδ protons revealed that the major isomer was the trans.

Reevaluation of the Off-Resonance Rotating-Frame Nuclear Overhauser Effect (O-ROESY) Experiment

1995 ◽  
Vol 117 (2) ◽  
pp. 307-310 ◽  
Author(s):  
Douglas Brooks ◽  
Patrick Ladam ◽  
Kazuo Kuwata ◽  
Thomas Schleich
Keyword(s):  
Nuclear Overhauser Effect ◽  
Rotating Frame ◽  
Overhauser Effect ◽  
Nuclear Overhauser
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