کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1944271 1053199 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Membrane lipid phase transitions and phase organization studied by Fourier transform infrared spectroscopy
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Membrane lipid phase transitions and phase organization studied by Fourier transform infrared spectroscopy
چکیده انگلیسی

Fourier transform infrared (FTIR) spectroscopy is a powerful yet relatively inexpensive and convenient technique for studying the structure and organization of membrane lipids in their various polymorphic phases. This spectroscopic technique yields information about the conformation and dynamics of all regions of the lipid molecule simultaneously without the necessity of introducing extrinsic probes. In this review, we summarize some relatively recent FTIR spectroscopic studies of the structure and organization primarily of fully hydrated phospholipids in their biologically relevant lamellar crystalline, gel and liquid–crystalline phases, and show that interconversions between these bilayer phases can be accurately monitored by this technique. We also briefly discuss how the structure and organization of potentially biologically relevant nonlamellar micellar or reversed hexagonal lipid phases can be studied and how phase transitions between lamellar and nonlamellar phases, or between various nonlamellar phases, can be followed as well. In addition, we discuss the potential for FTIR spectroscopy to yield fairly high resolution structural information about phospholipid packing in lamellar crystalline or gel phases. Finally, we show that many, but not all of these FTIR approaches can also yield valuable information about lipid–protein interactions in membrane protein- or peptide-containing lipid membrane bilayer model or even in biological membranes. This article is part of a Special Issue entitled: FTIR in membrane proteins and peptide studies.

Figure optionsDownload high-quality image (89 K)Download as PowerPoint slideHighlights
► We review the application of Fourier transform infrared (FTIR) spectroscopy to lipids.
► This powerful non-perturbing technique can be used to study lipid phase transitions.
► FTIR spectroscopy provides valuable information about the structure of lipid phases.
► FTIR spectroscopy gives key information about lipid/protein interactions in membranes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochimica et Biophysica Acta (BBA) - Biomembranes - Volume 1828, Issue 10, October 2013, Pages 2347–2358
نویسندگان
, ,