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- W2039908258 abstract "Abstract The critical Val/Glu mutation in the membrane spanning domain of the rat Neu receptor confers the ability for ligand‐independent signaling and leads to increased dimerization and transforming ability. There is evidence that the two transmembrane interacting helices play a role in receptor activation by imposing orientation constraints to the intracellular tyrosine kinase domains. By using MD simulations we have attempted to discriminate between correct and improper helix–helix packing by examining the structural and energetic properties of preformed left‐handed and right‐handed structures in a fully hydrated DMPC bilayer. The best energetic balance between the residues at the helix–helix interface and the residues exposed to the lipids is obtained for helices in symmetrical left‐handed interactions packed together via Glu side chain/Ala backbone interhelical hydrogen bonds. Analyses demonstrate the importance of the ATVEG motif in helix–helix packing and point to additional contacting residues necessary for association. Our findings, all consistent with experimental data, suggest that a symmetrical left‐handed structure of the helices could be the transmembrane domain configuration that promotes receptor activation and transformation. The present study may provide further insight into signal transduction mechanisms of the ErbB/Neu receptors. © 2005 Wiley Periodicals, Inc. Biopolymers, 2005" @default.
- W2039908258 created "2016-06-24" @default.
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- W2039908258 creator A5023831890 @default.
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- W2039908258 date "2005-01-19" @default.
- W2039908258 modified "2023-09-30" @default.
- W2039908258 title "Molecular dynamics (MD) investigations of preformed structures of the transmembrane domain of the oncogenic Neu receptor dimer in a DMPC bilayer" @default.
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- W2039908258 doi "https://doi.org/10.1002/bip.20176" @default.
- W2039908258 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15660449" @default.
- W2039908258 hasPublicationYear "2005" @default.
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