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Nagle JF, Cognet P, Dupuy FG, Tristram-Nagle S. Structure of gel phase DPPC determined by X-ray diffraction. Chem Phys Lipids 2019; 218:168-177. [DOI: 10.1016/j.chemphyslip.2018.12.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/23/2018] [Accepted: 12/24/2018] [Indexed: 11/29/2022]
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2
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Wang J, Liu KW, Segatori L, Biswal SL. Lipid Bilayer Phase Transformations Detected Using Microcantilevers. J Phys Chem B 2013; 118:171-8. [DOI: 10.1021/jp4095112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinghui Wang
- Department of Chemical and
Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Kai-Wei Liu
- Department of Chemical and
Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Laura Segatori
- Department of Chemical and
Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Sibani Lisa Biswal
- Department of Chemical and
Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
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Goto M, Wilk A, Kataoka K, Chodankar S, Tamai N, Fukui M, Kohlbrecher J, Ito HO, Matsuki H. Study on the subgel-phase formation using an asymmetric phospholipid bilayer membrane by high-pressure fluorometry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12191-12198. [PMID: 22823885 DOI: 10.1021/la3020173] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The myristoylpalmitoylphosphatidylcholine (MPPC) bilayer membrane shows a complicated temperature-pressure phase diagram. The large portion of the lamellar gel (L(β)'), ripple gel (P(β)'), and pressure-induced gel (L(β)I) phases exist as metastable phases due to the extremely stable subgel (L(c)) phase. The stable L(c) phase enables us to examine the properties of the L(c) phase. The phases of the MPPC bilayers under atmospheric and high pressures were studied by small-angle neutron scattering (SANS) and fluorescence spectroscopy using a polarity-sensitive fluorescent probe Prodan. The SANS measurements clearly demonstrated the existence of the metastable L(β)I phase with the smallest lamellar repeat distance. From a second-derivative analysis of the fluorescence data, the line shape for the L(c) phase under high pressure was characterized by a broad peak with a minimum of ca. 460 nm. The line shapes and the minimum intensity wavelength (λ″(min)) values changed with pressure, indicating that the L(c) phase has highly pressure-sensible structure. The λ″(min) values of the L(c) phase spectra were split into ca. 430 and 500 nm in the L(β)I phase region, which corresponds to the formation of a interdigitated subgel L(c) (L(c)I) phase. Moreover, the phase transitions related to the L(c) phase were reversible transitions under high pressure. Taking into account the fluorescence behavior of Prodan for the L(c) phase, we concluded that the structure of the L(c) phase is highly probably a staggered structure, which can transform into the L(c)I phase easily.
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Affiliation(s)
- Masaki Goto
- Department of Life System, Institute of Technology and Science, The University of Tokushima, Tokushima, Japan
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Jones JW, Lue L, Saiani A, Tiddy GJT. Density, DSC, X-ray and NMR measurements through the gel and lamellar phase transitions of 1-myristoyl-2-stearoyl-sn-glycero-3-phosphatidylcholine (MSPC) and 1-stearoyl-2-myristoyl-sn-glycero-3-phosphatidylcholine (SMPC): observation of slow relaxation processes and mechanisms of phase transitions. Phys Chem Chem Phys 2012; 14:5452-69. [DOI: 10.1039/c2cp23136k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Lateral order in gel, subgel and crystalline phases of lipid membranes: Wide-angle X-ray scattering. Chem Phys Lipids 2012; 165:59-76. [DOI: 10.1016/j.chemphyslip.2011.11.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 10/31/2011] [Accepted: 11/03/2011] [Indexed: 11/21/2022]
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6
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Chain asymmetry alters thermotropic and barotropic properties of phospholipid bilayer membranes. Chem Phys Lipids 2009; 161:65-76. [DOI: 10.1016/j.chemphyslip.2009.07.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2008] [Revised: 06/26/2009] [Accepted: 07/06/2009] [Indexed: 11/21/2022]
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7
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Takahashi H, Okumura Y, Sunamoto J. Structure and thermal history dependant phase behavior of hydrated synthetic sphingomyelin analogue: 1,2-dimyristamido-1,2-deoxyphosphatidylcholine. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2005; 1713:40-50. [PMID: 15950928 DOI: 10.1016/j.bbamem.2005.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2005] [Revised: 04/28/2005] [Accepted: 04/29/2005] [Indexed: 11/18/2022]
Abstract
The physical properties of hydrated multilamellar sample of 1,2-dimyristamido-1,2-deoxyphosphatidylcholine (DDPC) were investigated by means of differential scanning calorimetry (DSC), static X-ray diffraction, and simultaneous DSC and X-ray diffraction. The DDPC is a synthetic sphingomyelin analogue and has two amide bonds in its hydrophobic parts. This paper reports on metastable phase behavior of the hydrated DDPC sample. By cooling from a chain-melted state at the rates of greater than 4 degrees C min(-1), hydrated DDPC bilayers form a metastable gel phase. In the gel phase, the hydrophobic chains are tilted with respect to the bilayer normal, as like the gel phase of glycero-phosphatidylcholines. By heating, the metastable gel phase is transformed in to a stable phase associated with an exothermic heat event at 18.3 degrees C (DeltaH=14.6 kJ mol(-1)) and then the stable phase is transformed into a liquid-crystalline phase at 25.6 degrees C (DeltaH=42 kJ mol(-1)). The incubation at 17 degrees C for more than 1 h also induces the formation of the stable phase. In the stable phase, the hydrophobic chains are packed into highly ordered crystal-like structure. However, the X-ray diffraction pattern of the stable phase suggested that the entire DDPC molecules do not form a two-dimensional molecular ordered lattice, differing from normal subgel phase of glycero-phosphatidylcholines. The structure and phase behavior of DDPC revealed by the present study are discussed from the viewpoint of hydrogen bonds.
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Affiliation(s)
- Hiroshi Takahashi
- Department of Physics, Gunma University, 4-2 Aramaki, Maebashi 371-8510, Japan.
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8
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Matsuki H, Goto M, Kusube M, Tamai N, Kaneshina S. Barotropic Phase Transitions of 1-Palmitoyl-2-stearoylphosphatidylcholine Bilayer Membrane. CHEM LETT 2005. [DOI: 10.1246/cl.2005.270] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Tristram-Nagle S, Lewis RNAH, Blickenstaff JW, Diprima M, Marques BF, McElhaney RN, Nagle JF, Schneider JW. Thermodynamic and structural characterization of amino acid-linked dialkyl lipids. Chem Phys Lipids 2004; 134:29-39. [PMID: 15752461 PMCID: PMC2720572 DOI: 10.1016/j.chemphyslip.2004.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2004] [Revised: 11/03/2004] [Accepted: 11/03/2004] [Indexed: 11/18/2022]
Abstract
Using differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR), we determined some thermodynamic and structural parameters for a series of amino acid-linked dialkyl lipids containing a glutamic acid-succinate headgroup and di-alkyl chains: C12, C14, C16 and C18 in CHES buffer, pH 10. Upon heating, DSC shows that the C12, C14 and annealed C16 lipids undergo a single transition which XRD shows is from a lamellar, chain ordered subgel phase to a fluid phase. This single transition splits into two transitions for C18, and FTIR shows that the upper main transition is predominantly the melting of the hydrocarbon chains whereas the lower transition involves changes in the headgroup ordering as well as changes in the lateral packing of the chains. For short incubation times at low temperature, the C16 lipid appears to behave like the C18 lipid, but appropriate annealing at low temperatures indicates that its true equilibrium behavior is like the shorter chain lipids. XRD shows that the C12 lipid readily converts into a highly ordered subgel phase upon cooling and suggests a model with untilted, interdigitated chains and an area of 77.2A(2)/4 chains, with a distorted orthorhombic unit subcell, a=9.0A, b=4.3A and beta=92.7 degrees . As the chain length n increases, subgel formation is slowed, but untilted, interdigitated chains prevail.
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Affiliation(s)
- Stephanie Tristram-Nagle
- Department of Biological Sciences, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA.
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Raudino A, Castelli F, Briganti G, Cametti C. Anomalous dielectric behavior of undulated lipid membranes. Theoretical model and dielectric spectroscopy measurements of the ripple phase of phosphatidylcholine. J Chem Phys 2001. [DOI: 10.1063/1.1403685] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mason PC, Nagle JF, Epand RM, Katsaras J. Anomalous swelling in phospholipid bilayers is not coupled to the formation of a ripple phase. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2001; 63:030902. [PMID: 11308623 DOI: 10.1103/physreve.63.030902] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2000] [Indexed: 05/23/2023]
Abstract
Aligned stacks of monomethyl and dimethyl dimyristoyl phosphatidylethanolamine (DMPE) lipid bilayers, like the much studied dimyristoyl PC (DMPC) bilayers, swell anomalously in a critical fashion as the temperature is decreased within the fluid phase towards the main transition temperature, T(M). Unlike DMPC bilayers, both monomethyl and dimethyl DMPE undergo transitions into a gel phase rather than a rippled phase below T(M). Although it is not fully understood why there is anomalous swelling, our present results should facilitate theory by showing that the formation of the phase below T(M) is not related to critical phenomena above T(M).
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Affiliation(s)
- P C Mason
- National Research Council, Steacie Institute for Molecular Sciences, Chalk River Laboratories, Chalk River, Ontario, Canada K0J 1J0
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Abstract
The quantitative experimental uncertainty in the structure of fully hydrated, biologically relevant, fluid (L(alpha)) phase lipid bilayers has been too large to provide a firm base for applications or for comparison with simulations. Many structural methods are reviewed including modern liquid crystallography of lipid bilayers that deals with the fully developed undulation fluctuations that occur in the L(alpha) phase. These fluctuations degrade the higher order diffraction data in a way that, if unrecognized, leads to erroneous conclusions regarding bilayer structure. Diffraction measurements at high instrumental resolution provide a measure of these fluctuations. In addition to providing better structural determination, this opens a new window on interactions between bilayers, so the experimental determination of interbilayer interaction parameters is reviewed briefly. We introduce a new structural correction based on fluctuations that has not been included in any previous studies. Updated measurements, such as for the area compressibility modulus, are used to provide adjustments to many of the literature values of structural quantities. Since the gel (L(beta)') phase is valuable as a stepping stone for obtaining fluid phase results, a brief review is given of the lower temperature phases. The uncertainty in structural results for lipid bilayers is being reduced and best current values are provided for bilayers of five lipids.
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Affiliation(s)
- J F Nagle
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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13
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Abstract
Fluctuations, inherent in flexible and biologically relevant lipid bilayers, make quantitative structure determination challenging. Shortcomings in older methods of structure determination have been realized and new methodologies have been introduced that take fluctuations into account. The large uncertainty in literature values of lipid bilayer structural parameters is being reduced.
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Affiliation(s)
- J F Nagle
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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Katsaras J, Tristram-Nagle S, Liu Y, Headrick RL, Fontes E, Mason PC, Nagle JF. Clarification of the ripple phase of lecithin bilayers using fully hydrated, aligned samples. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 2000; 61:5668-77. [PMID: 11031625 DOI: 10.1103/physreve.61.5668] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/1999] [Indexed: 11/07/2022]
Abstract
Aligned samples of lipid bilayers have been fully hydrated from water vapor in a different type of x-ray chamber. Our use of aligned samples resolves issues concerning the ripple phase that were ambiguous from previous powder studies. In particular, our x-ray diffraction data conclusively demonstrate that, on cooling from the L alpha to the P beta' phase, both chiral and racemic samples of dipalmitoyl phosphatidylcholine (DPPC) exhibit phase coexistence of long and short ripples with a ripple wavelength ratio lambda L/lambda S approximately 1.8. Moreover, the long ripple always forms an orthorhombic unit cell (gamma L = 90 degrees), strongly supporting the possibility that these ripples are symmetric. In contrast, gamma S for short ripples was consistently different from 90 degrees, implying asymmetric ripples. We continue to find no evidence that chirality affects the structure of rippled bilayers. The relative thermodynamic stability of the two types of ripples was investigated and a qualitative free energy diagram is given in which the long ripple phase is metastable. Finally, we suggest a kinetic mechanism, involving loss of water, that promotes formation of the metastable long ripple phase for special thermal protocols.
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Affiliation(s)
- J Katsaras
- National Research Council, Chalk River Laboratories, Ontario, Canada
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