Surface plasmon resonance as detection tool for lipids lateral mobility in biomimetic membranes

被引：11

作者：

Margheri, Giancarlo ^{[1
]}

D'Agostino, Riccardo ^{[2
]}

Becucci, Lucia ^{[3
]}

Guidelli, Rolando ^{[3
]}

Tiribilli, Bruno ^{[1
]}

Del Rosso, Mario ^{[2
]}

机构：

[1] CNR, Inst Complex Syst, I-50019 Florence, Italy

[2] Dept Pathol & Expt Oncol, I-50134 Florence, Italy

[3] Dept Chem, I-50019 Florence, Italy

来源：

BIOMEDICAL OPTICS EXPRESS | 2012年 / 3卷 / 12期

关键词：

SELF-ASSEMBLED MONOLAYERS; PROTEIN-COUPLED RECEPTOR; CHOLERA-TOXIN BINDING; IMPEDANCE SPECTROSCOPY; RAFTS; GANGLIOSIDES; FLUORESCENCE; SPECIFICITY; THIOLIPIDS; TRANSPORT;

D O I：

10.1364/BOE.3.003119

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A procedure based on surface plasmon resonance (SPR) is proposed to monitor the lateral mobility of lipid molecules in solid-supported bilayer lipid membranes (ssBLMs), an essential prerequisite for the formation of important microdomains called lipid rafts (LRs). The procedure relies on the marked tendency of the ganglioside GM1 to be recruited by LRs and to act as a specific receptor of the beta-subunit of the cholera toxin (ChTB). In the presence of both GM1 and ChTB, spontaneous formation of lipid rafts domains in mobile ssBLMs is accompanied by an appreciable increase in the amount of adsorbed ChTB, as monitored by SPR. (C) 2012 Optical Society of America

引用

页码：3119 / 3126

页数：8

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