Dataset A1606 and A1905
收藏资源简介:
We present molecular dynamics (MD) trajectories of water solutions of eighth zwitterionic amino-acids (L- form) glycine (GLY), alanine (ALA), proline (PRO), threonine (THR), leucine (LEU), glutamine (GLN), histidine (HIS) and tyrosine (TYR) using various force field (OPLS-AA, Amber99ff-SB, GROMOS96 54a7, CHARMM19) and water model (SPC/E, TIP3P) combinations. Additionally, we present OPLS-AA molecular dynamics (MD) trajectories for alanine (ALA), leucine (LEU), glutamine (GLN), and tyrosine (TYR) varying the values of major force field parameters: charge on all amino acid atoms, bond length (all amino acid bonds), Lennard-Jones epsilon parameter and stiffness of bond angles. Our data enable to uncover sensitivity of molecular dynamics derived analysis to variation of force field and water models and force field parameters. This data set was used to understand the effect of molecular dynamics parameters on dielectric properties of amino acid solutions.
我们提供了8种两性离子型L-型氨基酸水溶液的分子动力学(MD)轨迹,所涉氨基酸包括甘氨酸(GLY)、丙氨酸(ALA)、脯氨酸(PRO)、苏氨酸(THR)、亮氨酸(LEU)、谷氨酰胺(GLN)、组氨酸(HIS)以及酪氨酸(TYR),并采用了多种力场(force field)与水模型(water model)的组合,其中力场涵盖OPLS-AA、Amber99ff-SB、GROMOS96 54a7、CHARMM19,水模型包含SPC/E与TIP3P。此外,我们还提供了针对丙氨酸(ALA)、亮氨酸(LEU)、谷氨酰胺(GLN)与酪氨酸(TYR)的OPLS-AA力场分子动力学(MD)轨迹,该系列轨迹通过调整核心力场参数的取值得到,涉及的参数包括:所有氨基酸原子的电荷、所有氨基酸键的键长、伦纳德-琼斯ε参数以及键角刚度。本数据集可用于揭示基于分子动力学的分析结果对力场、水模型以及力场参数变化的敏感性。该数据集曾被用于探究分子动力学参数对氨基酸水溶液介电特性的影响。



