Interactions of the EphA2 Kinase Domain with PIPs in Membranes: Implications for Receptor Function.
Interactions of the EphA2 Kinase Domain with PIPs in Membranes: Implications for Receptor Function.
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DOI:
10.1016/j.str.2018.05.003
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发表时间:
2018-07-03
期刊:
影响因子:
--
通讯作者:
Sansom MSP
中科院分区:
文献类型:
--
作者:
Chavent M;Karia D;Kalli AC;Domański J;Duncan AL;Hedger G;Stansfeld PJ;Seiradake E;Jones EY;Sansom MSP
EphA2 is a member of the receptor tyrosine kinase family. Interactions of the cytoplasmic region of EphA2 with the cell membrane are functionally important and yet remain incompletely characterized. Molecular dynamics simulations combined with biochemical studies reveal the interactions of the transmembrane, juxtamembrane (JM), and kinase domains with the membrane. We describe how the kinase domain is oriented relative to the membrane and how the JM region can modulate this interaction. We highlight the role of phosphatidylinositol phosphates (PIPs) in mediating the interaction of the kinase domain with the membrane and, conversely, how positively charged patches at the kinase surface and in the JM region induce the formation of nanoclusters of PIP molecules in the membrane. Integration of these results with those from previous studies enable computational reconstitution of a near complete EphA2 receptor within a membrane, suggesting a role for receptor-lipid interactions in modulation of EphA2. Molecular simulations unravel how EphA2 kinase interacts with PIP2 in membranes The EphA2 juxtamembrane (JM) domain interacts with the kinase domain and membrane The JM and kinase domains drive formation of PIP2 nanoclusters in the membrane An integrative model supports trans autophosphorylation within clustered EphA2s Chavent et al. investigate interactions of the EphA2 receptor tyrosine kinase with a membrane. Phosphatidylinositol phosphates (PIPs) mediate interaction of the kinase domain with the membrane, while kinase and juxtamembrane domains induce formation of nanoclusters of PIP molecules. These results enable computational reconstitution of a near complete EphA2 receptor model.
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影响因子:
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作者:
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DOI:
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影响因子:
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作者:
通讯作者:
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影响因子:
5.5
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