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首页> 外文期刊>Journal of Biomechanics >Elastic properties of biological membranes influenced by attached proteins.
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Elastic properties of biological membranes influenced by attached proteins.

机译：受附着蛋白质影响的生物膜的弹性特性。

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摘要

Positively charged proteins can attach themselves to the negatively charged outer surface of biological cell membranes and liposomes. In this work, the influence of the intrinsic shape of the membrane-attached proteins on the elastic properties of the membrane is considered theoretically. It is shown that attachment of anisotropic proteins to the outer surface of biological membranes may induce tubulation of the membrane. The attachment of semi-flexible rod-like proteins increases the local bending constant, while the attachment of semi-flexible plate-like anisotropic proteins may also reduce the local bending constant of the membrane. The role of the hydrophobic protrusion of the attached protein which is embedded in the outer membrane layer is also discussed.
机译：带正电荷的蛋白质可以将自身附着于带生物细胞膜和脂质体带负电荷的外表面。在这项工作中，从理论上考虑了膜附着蛋白的固有形状对膜弹性性能的影响。结果表明，各向异性蛋白附着在生物膜的外表面可能会诱导膜的成管。半柔性杆状蛋白质的附着会增加局部弯曲常数，而半柔性板状各向异性蛋白质的附着也会降低膜的局部弯曲常数。还讨论了嵌入在外膜层中的附着蛋白的疏水突出物的作用。

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