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Tuning the Thickness of a Biomembrane by Stapling Diamidophospholipids with Bolalipids.
Langmuir ( IF 3.7 ) Pub Date : 2020-07-01 , DOI: 10.1021/acs.langmuir.0c01522 Simon Drescher 1, 2 , Annette Meister 3 , Gerd Hause 4 , Frederik Neuhaus 5 , Sandor Balog 6 , Gerald Brezesinski 7 , Andreas Zumbuehl 5, 8
Langmuir ( IF 3.7 ) Pub Date : 2020-07-01 , DOI: 10.1021/acs.langmuir.0c01522 Simon Drescher 1, 2 , Annette Meister 3 , Gerd Hause 4 , Frederik Neuhaus 5 , Sandor Balog 6 , Gerald Brezesinski 7 , Andreas Zumbuehl 5, 8
Affiliation
In a biological membrane, proteins require specific lipids of distinctive length and chain saturation surrounding them. The active tuning of the membrane thickness therefore opens new possibilities in the study and manipulation of membrane proteins. Here, we introduce the concept of stapling phospholipids to different degrees of interdigitation depth by mixing 1,3-diamidophospholipids with single-chain bolalipids. The mixed membranes were studied by calorimetric assays, electron microscopy, X-ray, and infrared measurements to provide a complete biophysical characterization of membrane stapling. The matching between the diamidophospholipids and the bolalipids can be so strong as to completely induce a new phase that is more stable than the gel phase of the individual components.
中文翻译:
通过用脂质脂质钉合二酰胺基磷脂来调节生物膜的厚度。
在生物膜中,蛋白质需要具有独特长度和围绕它们的链饱和度的特定脂质。因此,膜厚度的主动调节为膜蛋白的研究和操作开辟了新的可能性。在这里,我们通过将1,3-二酰胺基磷脂与单链bolalipids混合在一起,将装订磷脂的概念引入互指深度的不同程度。通过量热分析,电子显微镜,X射线和红外测量研究了混合膜,以提供膜钉合的完整生物物理特征。二酰胺基磷脂和bolalipids之间的匹配可能很强,以至于完全诱导出一个新相,该相比单个组分的凝胶相更稳定。
更新日期:2020-07-28
中文翻译:
通过用脂质脂质钉合二酰胺基磷脂来调节生物膜的厚度。
在生物膜中,蛋白质需要具有独特长度和围绕它们的链饱和度的特定脂质。因此,膜厚度的主动调节为膜蛋白的研究和操作开辟了新的可能性。在这里,我们通过将1,3-二酰胺基磷脂与单链bolalipids混合在一起,将装订磷脂的概念引入互指深度的不同程度。通过量热分析,电子显微镜,X射线和红外测量研究了混合膜,以提供膜钉合的完整生物物理特征。二酰胺基磷脂和bolalipids之间的匹配可能很强,以至于完全诱导出一个新相,该相比单个组分的凝胶相更稳定。