13C NMR studies on fluorescent probes: 13C chemical shifts and longitudinal relaxation times of n-hydroxy-fatty (n=2,6,9,12) acids and n-(9-anthroyloxy)-stearic (n=6,12) acids

1979 ◽  
Vol 24 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Stanley R. Johns ◽  
Richard I. Willing ◽  
Keith R. Thulborn ◽  
William H. Sawyer
Keyword(s):  
13C Nmr ◽  
Fluorescent Probes ◽  
Chemical Shifts ◽  
Relaxation Times ◽  
Nmr Studies ◽  
13C Chemical Shifts ◽  
Longitudinal Relaxation

Studies on chloroplast membranes. III. 13C chemical shifts and longitudinal relaxation times of 1,2-Diacyl-3-(6-sulpho-α-quinovosyl)-sn-glycerol

1978 ◽  
Vol 31 (1) ◽  
pp. 65 ◽  
Author(s):  
SR Johns ◽  
DR Leslie ◽  
RI Willing ◽  
DG Bishop
Keyword(s):  
Chemical Shifts ◽  
Relaxation Times ◽  
Acid Group ◽  
Vesicular Structure ◽  
13C Chemical Shifts ◽  
Longitudinal Relaxation ◽  
Monomeric Structure ◽  
13C Chemical Shift ◽  
Nuclear Overhauser ◽  
The Individual

13C Chemical shifts, longitudinal relaxation times and some nuclear Overhauser enhancement factors of the individual carbon atoms in the chloroplast lipid, 1,2-diacyl-3-(6-sulpho-α-quinovosyl)-sn-glycerol (sl), have been measured in the three solvents: methanol[D4], chloroform[D] and water[D2]. Correlation times for the individual carbon atoms calculated from these results have been interpreted in terms of different secondary structures: a monomeric structure in methanol[D4], an inverted micellar structure in chloroform[D] and a bilayer vesicular structure in water[D2]. Substituent shift parameters have been determined for the sulphonic acid group from a series of alkanesulphonic acids and these have been used in the 13C chemical shift assignments in sl and a series of model compounds.

Studies on chloroplast membranes. IV. 13C chemical shifts and longitudinal relaxation times of 3-sn-phosphatidylglycerol

1981 ◽  
Vol 34 (2) ◽  
pp. 357 ◽  
Author(s):  
JM Coddington ◽  
SR Johns ◽  
DR Leslie ◽  
RI Willing ◽  
DG Bishop
Keyword(s):  
Chemical Shifts ◽  
Relaxation Times ◽  
Secondary Structures ◽  
Chloroplast Membranes ◽  
13C Chemical Shifts ◽  
Nuclear Overhauser Enhancement ◽  
Enhancement Factors ◽  
Longitudinal Relaxation ◽  
Monomeric Structure ◽  
Nuclear Overhauser

13C chemical shifts, longitudinal relaxation times and some nuclear Overhauser enhancement factors of individual carbon atoms in the chloroplast lipid, 3-sn-phosphatidylglycerol (pg), have been measured in (D4)methanol and (D)chloroform. Correlation times for individual carbon atoms calculated from these results have been interpreted in terms of different secondary structures: a monomeric structure in (D4)methanol and an inverted micelle in (D)chloroform. Differences in structures between the four major lipid components of the chloroplast membrane are briefly discussed.

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