Related ArticlesLipid-protein stoichiometries in a crystalline biological membrane: NMR quantitative analysis of the lipid extract of the purple membrane.
J Lipid Res. 2002 Jan;43(1):132-40
Authors: Corcelli A, Lattanzio VM, Mascolo G, Papadia P, Fanizzi F
The lipid/protein stoichiometries of a naturally crystalline biological membrane, the purple membrane (PM) of Halobacterium salinarum, have been obtained by a combination of (31)P- and (1)H-NMR analyses of the lipid extract. In total, 10 lipid molecules per retinal were found to be present in the PM lipid extract: 2-3 molecules of phosphatidylglycerophosphate methyl ester (PGP-Me), 3 of glycolipid sulfate, 1 of phosphatidylglycerol, 1 of archaeal glycocardiolipin (GlyC), 2 of squalene plus minor amounts of phosphatidylglycerosulfate (PGS) and bisphosphatidylglycerol (archaeal cardiolipin) (BPG) and a negligible amount of vitamin MK8. The novel data of the present study are necessary to identify the lipids in the electron density map, and to shed light on the structural relationships of the lipid and protein components of the PM.
Up Close with Membrane Lipid-Protein Complexes - Science Careers Blog (subscription)
Up Close with Membrane Lipid-Protein Complexes - Science Careers Blog (subscription)
<img alt="" height="1" width="1" />
Up Close with Membrane Lipid-Protein Complexes
Science Careers Blog (subscription)
(2) report mass spectrometry of intact integral membrane protein complexes solubilized from bilayers. The results show that specific structural lipids remain bound in the gas phase and can be counted. Despite some technical hurdles, integral membrane ...
Read here
nmrlearner
Online News
0
10-21-2011 09:52 AM
Ultrafast quantitative 2D NMR: an efficient tool for the measurement of specific isotopic enrichments in complex biological mixtures.
Ultrafast quantitative 2D NMR: an efficient tool for the measurement of specific isotopic enrichments in complex biological mixtures.
Ultrafast quantitative 2D NMR: an efficient tool for the measurement of specific isotopic enrichments in complex biological mixtures.
Anal Chem. 2011 Apr 15;83(8):3112-9
Authors: Giraudeau P, Massou S, Robin Y, Cahoreau E, Portais JC, Akoka S
Two-dimensional nuclear magnetic resonance (2D NMR) is a promising tool for studying metabolic fluxes by measuring (13)C-enrichments in complex mixtures of (13)C-labeled...
nmrlearner
Journal club
0
08-04-2011 11:41 AM
A solution NMR view of protein dynamics in the biological membrane.
A solution NMR view of protein dynamics in the biological membrane.
A solution NMR view of protein dynamics in the biological membrane.
Curr Opin Struct Biol. 2011 Jul 30;
Authors: Chill JH, Naider F
Structure determination of membrane-associated proteins (MPs) represents a frontier of structural biology that is characterized by unique challenges in sample preparation and data acquisition. No less important is our ability to study the dynamics of MPs, since MP flexibility and characteristic motions often make sizeable contributions to their...
nmrlearner
Journal club
0
08-03-2011 12:00 PM
[NMR paper] Membrane protein-lipid interactions in mixed micelles studied by NMR spectroscopy wit
Membrane protein-lipid interactions in mixed micelles studied by NMR spectroscopy with the use of paramagnetic reagents.
Related Articles Membrane protein-lipid interactions in mixed micelles studied by NMR spectroscopy with the use of paramagnetic reagents.
Chembiochem. 2004 Apr 2;5(4):467-73
Authors: Hilty C, Wider G, Fernández C, Wüthrich K
For solution NMR studies of the structure and function of membrane proteins, these macromolecules have to be reconstituted and solubilized in detergent micelles. Detailed characterization of the mixed...
nmrlearner
Journal club
0
11-24-2010 09:51 PM
[NMR paper] Lipid-protein interactions in DHPC micelles containing the integral membrane protein
Lipid-protein interactions in DHPC micelles containing the integral membrane protein OmpX investigated by NMR spectroscopy.
Related Articles Lipid-protein interactions in DHPC micelles containing the integral membrane protein OmpX investigated by NMR spectroscopy.
Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13533-7
Authors: Fernández C, Hilty C, Wider G, Wüthrich K
Intermolecular nuclear Overhauser effects (NOEs) between the integral outer membrane protein OmpX from Escherichia coli and dihexanoylphosphatidylcholine (DHPC) provided a detailed...
nmrlearner
Journal club
0
11-24-2010 08:58 PM
[NMR paper] 13C-NMR studies of membrane lipid-protein interactions upon protein heat denaturation
13C-NMR studies of membrane lipid-protein interactions upon protein heat denaturation.
Related Articles 13C-NMR studies of membrane lipid-protein interactions upon protein heat denaturation.
J Biochem Biophys Methods. 1991 Oct-Nov;23(3):259-61
Authors: YashRoy RC
Spinach chloroplast membranes were studied by natural abundance carbon-13 nuclear magnetic resonance (13C-NMR) spectroscopy in their normal state and after heat denaturation of membrane proteins. The membrane proteins were denatured by raising the temperature of the sample to 67...
nmrlearner
Journal club
0
08-21-2010 11:12 PM
[NMR paper] 13C-NMR studies of membrane lipid-protein interactions upon protein heat denaturation
13C-NMR studies of membrane lipid-protein interactions upon protein heat denaturation.
Related Articles 13C-NMR studies of membrane lipid-protein interactions upon protein heat denaturation.
J Biochem Biophys Methods. 1991 Oct-Nov;23(3):259-61
Authors: YashRoy RC
Spinach chloroplast membranes were studied by natural abundance carbon-13 nuclear magnetic resonance (13C-NMR) spectroscopy in their normal state and after heat denaturation of membrane proteins. The membrane proteins were denatured by raising the temperature of the sample to 67...
nmrlearner
Journal club
0
08-21-2010 11:12 PM
[NMR paper] Identification of trapped and boundary lipid binding sites in M13 coat protein/lipid
Identification of trapped and boundary lipid binding sites in M13 coat protein/lipid complexes by deuterium NMR spectroscopy.
Related Articles Identification of trapped and boundary lipid binding sites in M13 coat protein/lipid complexes by deuterium NMR spectroscopy.
Biochemistry. 1990 Apr 24;29(16):3828-34
Authors: Van Gorkom LC, Horváth LI, Hemminga MA, Sternberg B, Watts A
The major coat protein of M13 bacteriophage has been incorporated into bilayers of 1,2-dimyristoyl-sn-glycero-3-phosphocholine, deuterated in the trimethyl segments of...
Lipid-protein stoichiometries in a crystalline biological membrane: NMR quantitative
Linear Mode
