Literature DB >> 6894555

A new crystalline phase of L-alpha-dipalmitoyl phosphatidylcholine monohydrate.

U P Fringeli.   

Abstract

A new phase transition of L-alpha-dipalmitoyl phosphatidylcholine (DPPC) monohydrate from the "biaxial" phase to a crystalline phase (C phase) has been found at 71 degrees C by means of infrared attenuated total reflection (IR-ATR) spectroscopy. The transition is characterized by drastic conformational changes in the glycerophosphorylcholine moiety, which led on the one hand to an alignment of the turn near the ester group in the hydrocarbon chain at glycerol C(2) position. On the other hand a uniform conformation of the glycerophosphorylcholine moiety is found to be typical for the C phase, in contrast to nonuniform head group conformations of DPPC in other regions of the DPPC/water phase diagram investigated so far.

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Year:  1981        PMID： 6894555      PMCID： PMC1327466          DOI： 10.1016/S0006-3495(81)84844-8

Source DB:  PubMed          Journal:  Biophys J        ISSN： 0006-3495            Impact factor:   4.033


  20 in total

1.  Direct observation of the hydrocarbon chain tilt angle in phospholipid bilayers.

Authors:  J B Stamatoff; W F Graddick; L Powers; D E Moncton
Journal:  Biophys J       Date:  1979-02       Impact factor: 4.033

2.  Structural chemistry of 1,2 dilauroyl-DL-phosphatidylethanolamine: molecular conformation and intermolecular packing of phospholipids.

Authors:  P B Hitchcock; R Mason; K M Thomas; G G Shipley
Journal:  Proc Natl Acad Sci U S A       Date:  1974-08       Impact factor: 11.205

3.  Coexistence of rigid crystalline and liquid crystalline phases in lecithin-water mixtures.

Authors:  M H Gottlieb; E D Eanes
Journal:  Biophys J       Date:  1974-05       Impact factor: 4.033

4.  Structure and polymorphism of the hydrocarbon chains of lipids: a study of lecithin-water phases.

Authors:  A Tardieu; V Luzzati; F C Reman
Journal:  J Mol Biol       Date:  1973-04-25       Impact factor: 5.469

5.  Lateral diffusion in the hydrophobic region of membranes: use of pyrene excimers as optical probes.

Authors:  H J Galla; E Sackmann
Journal:  Biochim Biophys Acta       Date:  1974-02-26

6.  Diffusion processes in lipid-water lamellar phases.

Authors:  J L Rignaud; C M Gary-Bobo; Y Lange
Journal:  Biochim Biophys Acta       Date:  1972-04-14

7.  Phase transitions and phase separations in phospholipid membranes induced by changes in temperature, pH, and concentration of bivalent cations.

Authors:  K Jacobson; D Papahadjopoulos
Journal:  Biochemistry       Date:  1975-01-14       Impact factor: 3.162

8.  Bilayers of dipalmitoyl-3-sn-phosphatidylcholine. Conformational differences between the fatty acyl chains.

Authors:  A Seelig; J Seelig
Journal:  Biochim Biophys Acta       Date:  1975-09-16

9.  Conformation and motion of the choline head group in bilayers of dipalmitoyl-3-sn-phosphatidylcholine.

Authors:  H U Gally; W Niederberger; J Seelig
Journal:  Biochemistry       Date:  1975-08-12       Impact factor: 3.162

10.  Nature of the Thermal pretransition of synthetic phospholipids: dimyristolyl- and dipalmitoyllecithin.

Authors:  M J Janiak; D M Small; G G Shipley
Journal:  Biochemistry       Date:  1976-10-19       Impact factor: 3.162
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  2 in total

1.  X-ray diffraction by phospholipid monolayers on single-crystal silicon substrates.

Authors:  M Seul; P Eisenberger; H M McConnell
Journal:  Proc Natl Acad Sci U S A       Date:  1983-09       Impact factor: 11.205

2.  Metastability and polymorphism in the gel phase of 1,2-dipalmitoyl-3-SN-phosphatidylcholine. A Fourier transform infrared study of the subtransition.

Authors:  D G Cameron; H H Mantsch
Journal:  Biophys J       Date:  1982-05       Impact factor: 4.033
  2 in total

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