Human serotonin receptor 5-HT(1A) preferentially segregates to the liquid disordered phase in synthetic lipid bilayers.

Human serotonin receptor 5-HT(1A) preferentially segregates to the liquid disordered phase in synthetic lipid bilayers.
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DOI:
10.1021/ja507221m
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发表时间:
2014-10-01
影响因子:
15
通讯作者:
Malmstadt, Noah
Malmstadt, Noah
中科院分区:
化学1区
文献类型:
--
作者:
Gutierrez, M. Gertrude;Malmstadt, Noah

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我们证明了成功的G蛋白偶联受体5-HT 1A纳入巨型单层囊泡使用琼脂糖再水化方法。使用荧光技术的直接观察,我们报告的5-HT 1A的优先分离成膜的胆固醇贫乏的液体无序相,与以前的报告相矛盾的脂筏分离。此外,改变胆固醇和鞘磷脂在三元混合物中的浓度不会改变5-HT 1A分离到液体无序相中。
We demonstrate successful incorporation of the G protein coupled receptor 5-HT1A into giant unilamellar vesicles using an agarose rehydration method. With direct observation using fluorescence techniques, we report preferential segregation of 5-HT1A into the cholesterol-poor liquid disordered phase of the membrane, contradicting previous reports of lipid raft segregation. Furthermore, altering the concentration of cholesterol and sphingomyelin in ternary mixtures does not alter 5-HT1A segregation into the liquid disordered phase.
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