MD simulation trajectory for EGFR TM region with L658Q mutation in ordered membrane
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Coarse-grained molecular dynamics trajectory of the EGFR L658Q transmembrane-juxtamembrane (TM-JM) peptide dimer (residues 654-695, PDB 2M20) in an ordered membrane (DIPC/DPSM/CHOL, equimolar upper leaflet). Simulated with GROMACS 2023.3 using the MARTINI 2.2 force field with polarizable water. Four peptide copies in a 40 x 40 nm periodic box, 0.15 M NaCl, 298 K. Trajectory frames saved every 1 ns. Associated with: Sato & Tamagaki-Asahina, "A conformational directivity switch imposed by the membrane in receptor tyrosine kinase dimers" and Sato, "CASCADE and MERIT — frameworks for extracting the directivity and causal architecture of structural covariation in molecular dynamics trajectories.
本数据集为表皮生长因子受体(EGFR)L658Q突变体跨膜-近膜区(transmembrane-juxtamembrane, TM-JM)肽二聚体(残基编号654-695,对应蛋白质数据库(Protein Data Bank, PDB)条目2M20)在有序复合膜(DIPC/DPSM/CHOL,上层小叶采用等摩尔比配比)中的粗粒度分子动力学(coarse-grained molecular dynamics)轨迹。模拟使用GROMACS 2023.3软件完成,力场采用MARTINI 2.2力场并搭配极化水(polarizable water)模型。模拟体系置于40×40 nm的周期性盒子中,内含4份该肽段,盐浓度为0.15 M NaCl,体系温度维持在298 K。轨迹每1纳秒保存一帧。本数据集关联两篇研究:Sato与Tamagaki-Asahina发表的《膜赋予受体酪氨酸激酶二聚体的构象方向性开关》,以及Sato发表的《CASCADE与MERIT——提取分子动力学轨迹中结构共变的方向性与因果架构的框架》。



