Related ArticlesInvestigating structural changes in the lipid bilayer upon insertion of the transmembrane domain of the membrane-bound protein phospholamban utilizing 31P and 2H solid-state NMR spectroscopy.
Biophys J. 2004 Mar;86(3):1564-73
Authors: Dave PC, Tiburu EK, Damodaran K, Lorigan GA
Phospholamban (PLB) is a 52-amino acid integral membrane protein that regulates the flow of Ca(2+) ions in cardiac muscle cells. In the present study, the transmembrane domain of PLB (24-52) was incorporated into phospholipid bilayers prepared from 1-palmitoyl-2-oleoyl-sn-glycero-phosphocholine (POPC). Solid-state (31)P and (2)H NMR experiments were carried out to study the behavior of POPC bilayers in the presence of the hydrophobic peptide PLB at temperatures ranging from 30 degrees C to 60 degrees C. The PLB peptide concentration varied from 0 mol % to 6 mol % with respect to POPC. Solid-state (31)P NMR spectroscopy is a valuable technique to study the different phases formed by phospholipid membranes. (31)P NMR results suggest that the transmembrane protein phospholamban is incorporated successfully into the bilayer and the effects are observed in the lipid lamellar phase. Simulations of the (31)P NMR spectra were carried out to reveal the formation of different vesicle sizes upon PLB insertion. The bilayer vesicles fragmented into smaller sizes by increasing the concentration of PLB with respect to POPC. Finally, molecular order parameters (S(CD)) were calculated by performing (2)H solid-state NMR studies on deuterated POPC (sn-1 chain) phospholipid bilayers when the PLB peptide was inserted into the membrane.
Structural topology of phospholamban pentamer in lipid bilayers by a hybrid solution and solid-state NMR method.
Structural topology of phospholamban pentamer in lipid bilayers by a hybrid solution and solid-state NMR method.
Structural topology of phospholamban pentamer in lipid bilayers by a hybrid solution and solid-state NMR method.
Proc Natl Acad Sci U S A. 2011 May 16;
Authors: Verardi R, Shi L, Traaseth NJ, Walsh N, Veglia G
Phospholamban (PLN) is a type II membrane protein that inhibits the sarcoplasmic reticulum Ca(2+)-ATPase (SERCA), thereby regulating calcium homeostasis in cardiac muscle. In membranes, PLN forms pentamers that have been proposed...
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05-19-2011 04:20 AM
The structure of the talin/integrin complex at a lipid bilayer: an NMR and MD simulation study.
The structure of the talin/integrin complex at a lipid bilayer: an NMR and MD simulation study.
The structure of the talin/integrin complex at a lipid bilayer: an NMR and MD simulation study.
Structure. 2010 Oct 13;18(10):1280-8
Authors: Kalli AC, Wegener KL, Goult BT, Anthis NJ, Campbell ID, Sansom MS
Integrins are cell surface receptors crucial for cell migration and adhesion. They are activated by interactions of the talin head domain with the membrane surface and the integrin ? cytoplasmic tail. Here, we use coarse-grained molecular dynamic...
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03-03-2011 12:34 PM
Long-Term-Stable Ether-Lipid vs Conventional Ester-Lipid Bicelles in Oriented Solid-State NMR: Altered Structural Information in Studies of Antimicrobial Peptides.
Long-Term-Stable Ether-Lipid vs Conventional Ester-Lipid Bicelles in Oriented Solid-State NMR: Altered Structural Information in Studies of Antimicrobial Peptides.
Long-Term-Stable Ether-Lipid vs Conventional Ester-Lipid Bicelles in Oriented Solid-State NMR: Altered Structural Information in Studies of Antimicrobial Peptides.
J Phys Chem B. 2011 Feb 10;
Authors: Bertelsen K, Vad B, Nielsen EH, Hansen SK, Skrydstrup T, Otzen DE, Vosegaard T, Nielsen NC
Recently, ether lipids have been introduced as long-term stable alternatives to the more natural,...
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02-12-2011 05:26 PM
A View into the Blind Spot: Solution NMR Provides New Insights into Signal Transduction Across the Lipid Bilayer.
A View into the Blind Spot: Solution NMR Provides New Insights into Signal Transduction Across the Lipid Bilayer.
Related Articles A View into the Blind Spot: Solution NMR Provides New Insights into Signal Transduction Across the Lipid Bilayer.
Structure. 2010 Dec 8;18(12):1559-1569
Authors: Call ME, Chou JJ
One of the most fundamental problems in cell biology concerns how cells communicate with their surroundings through surface receptors. The last few decades have seen major advances in understanding the mechanisms of receptor-ligand...
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12-08-2010 06:21 PM
[NMR paper] Dynamic pictures of membrane proteins in two-dimensional crystal, lipid bilayer and d
Dynamic pictures of membrane proteins in two-dimensional crystal, lipid bilayer and detergent as revealed by site-directed solid-state 13C NMR.
Related Articles Dynamic pictures of membrane proteins in two-dimensional crystal, lipid bilayer and detergent as revealed by site-directed solid-state 13C NMR.
Chem Phys Lipids. 2004 Nov;132(1):101-12
Authors: Saitô H
We have compared site-directed 13C solid-state NMR spectra of Ala- and/or Val-labeled membrane proteins, including bacteriorhodopsin (bR), pharaonis phoborhodopin (ppR), its cognate...
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11-24-2010 10:03 PM
[NMR paper] 'Boomerang'-like insertion of a fusogenic peptide in a lipid membrane revealed by sol
'Boomerang'-like insertion of a fusogenic peptide in a lipid membrane revealed by solid-state 19F NMR.
Related Articles 'Boomerang'-like insertion of a fusogenic peptide in a lipid membrane revealed by solid-state 19F NMR.
Magn Reson Chem. 2004 Feb;42(2):195-203
Authors: Afonin S, Dürr UH, Glaser RW, Ulrich AS
Solid state (19)F NMR revealed the conformation and alignment of the fusogenic peptide sequence B18 from the sea urchin fertilization protein bindin embedded in flat phospholipid bilayers. Single (19)F labels were introduced into nine...
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11-24-2010 09:25 PM
[NMR paper] Structure of gramicidin a in a lipid bilayer environment determined using molecular d
Structure of gramicidin a in a lipid bilayer environment determined using molecular dynamics simulations and solid-state NMR data.
Related Articles Structure of gramicidin a in a lipid bilayer environment determined using molecular dynamics simulations and solid-state NMR data.
J Am Chem Soc. 2003 Aug 13;125(32):9868-77
Authors: Allen TW, Andersen OS, Roux B
Two different high-resolution structures recently have been proposed for the membrane-spanning gramicidin A channel: one based on solid-state NMR experiments in oriented phospholipid...
Investigating structural changes in the lipid bilayer upon insertion of the transmemb
Linear Mode
