Ca~(2+) Bridging of Apposed Phospholipid Bilayers

Zeena K. Issa; Charles W. Manke; Bhanu P. Jena

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Ca~(2+) Bridging of Apposed Phospholipid Bilayers

机译：Ca〜（2+）桥接的磷脂双层

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In an effort to provide insight into the mechanism of Ca~(2+)-induced fusion of lipid vesicles, molecular dynamics simulations in the isobaric-isothermal ensemble are used to investigate interactions of Ca~(2+) with apposed lipid bilayers in close proximity. Simulations reveal the formation of a Ca~(2+)-phospholipid "anhydrous complex" between apposed bilayers, whereas similar calculations performed with Na~+ display only complexation between neighboring lipids within the same bilayer. The binding of Ca~(2+) to apposed phospholipids brings large regions of the bilayers into close contact (<4 A), displacing water from phospholipid head groups in the process and creating regions of local dehydration. Dehydration of the apposed bilayers leads to ordering of the phospholipid tails, which is partially disrupted by the presence of Ca~(2+)-phospholipid bridges.

机译：为了提供对Ca〜（2+）诱导的脂质囊泡融合机制的深入了解，在等压-等温集成中的分子动力学模拟用于研究Ca〜（2+）与并置脂质双层的相互作用。接近。模拟显示在并置的双层之间形成Ca〜（2 +）-磷脂“无水复合物”，而用Na〜+进行的类似计算仅显示同一双层内相邻脂质之间的复合。 Ca〜（2+）与所结合的磷脂的结合使双层的大部分区域紧密接触（<4 A），从而在此过程中将水从磷脂头基中置换出并形成局部脱水区域。并置的双层的脱水导致磷脂尾的有序化，其被Ca〜（2 +）-磷脂桥的存在部分破坏。

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《The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical》 |2010年第41期|共6页
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Zeena K. Issa; Charles W. Manke; Bhanu P. Jena;
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1. Ca~(2+) Bridging of Apposed Phospholipid Bilayers [J] . Zeena K. Issa, Charles W. Manke, Bhanu P. Jena The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2010,第41期

机译：Ca〜（2+）桥接的磷脂双层
2. Streptavidin 2D Crystals on Supported Phospholipid Bilayers: Toward Constructing Anchored Phospholipid Bilayers [J] . Ilya Reviakine, Alain Brisson Langmuir: The ACS Journal of Surfaces and Colloids . 2001,第26期

机译：支撑的磷脂双层膜上的链霉亲和素2D晶体：走向构建锚定的磷脂双层膜
3. Mn~(2+)-, Fe~(2+)-, Co~(2+)-, Ni~(2+)-, Cu~(2+)-, and Zn~(2+)-Binding Chalcogen-Chalcogen Bridges: A Compared MP2 and B3LYP Study [J] . Yannick Jeanvoine, Riccardo Spezia The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2009,第27期

机译：Mn〜（2 +）-，Fe〜（2 +）-，Co〜（2 +）-，Ni〜（2 +）-，Cu〜（2 +）-和Zn〜（2+）结合硫属元素-硫属元素桥：比较MP2和B3LYP研究
4. Dynamic Photonic Crystals Mainly Composed of Water: Sensitive Changes of Structural Colors Exhibited by Thermoresponsive Phospholipid Bilayers [C] . Noriyuki Uchida, Zhi Wei Kenny Low, Yasuhiro Ishida 日本化学会春季年会講演予稿集 . 2018

机译：动态光子晶体主要由水组成：热敏磷脂双层呈现的结构颜色的敏感变化
5. Chapter 1: (I) Use of chain-modified phospholipids to determine water content of bilayers. (II) Ion transport across bilayers of chain-modified phospholipids. Chapter 2: Synthesis, catalytic properties of and studies toward electron transport by copper-complexed lipids. [D] . Aikens, Patricia Ann Elizabeth. 1990

机译：第1章：（I）使用链修饰的磷脂测定双层的水含量。（II）跨链修饰的磷脂的双层的离子运输。第2章：铜络合物脂质的合成，催化性能以及对电子的研究。
6. Phospholipid surface bilayers at the air-water interface. III. Relation between surface bilayer formation and lipid bilayer assembly in cell membranes. [O] . N L Gershfeld 1986

机译：磷脂表面在空气-水界面处双层。三细胞膜中表面双层形成与脂质双层组装之间的关系。
7. Phospholipid surface bilayers at the air-water interface. III. Relation between surface bilayer formation and lipid bilayer assembly in cell membranes. [O] . Gershfeld, N L 1986

机译：磷脂表面在空气-水界面处双层。三，细胞膜中表面双层形成与脂质双层组装之间的关系。

Ca~(2+) Bridging of Apposed Phospholipid Bilayers

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