In Silico Design and 3D Structural Data for a Multi-Epitope Vaccine Construct targeting Tilapia Parvovirus (TiPV)

Research Hypothesis
The central hypothesis of this study is that a rationally engineered, 58-amino acid Multi-Epitope Vaccine Construct (MEVC) integrating highly conserved B-cell and T-cell epitopes from the Tilapia Parvovirus (TiPV) VP1 capsid protein with an N-terminal Tuftsin adjuvant will form a thermodynamically stable, high-affinity complex with the teleost Toll-Like Receptor 3 (TLR3) to trigger a robust innate and adaptive immune cascade.

What the Data Shows and Notable Findings
The provided dataset contains the raw viral sequences, multiple sequence alignments, 3D structural coordinate files (.pdb), and the final docked receptor-ligand complex. Structural validation data confirms the de novo modeled vaccine construct possesses optimal stereochemical geometry, with 100% of residues situated in Ramachandran favored or allowed regions. Molecular docking and thermodynamic profiling data show a highly spontaneous binding affinity (ΔG = -21.5 kcal/mol) and a sub-femtomolar dissociation constant (1.6 x 10^-16M). Interface analysis of the docked .pdb complex reveals a massive 2074.4 Ų contact area stabilized by 9 intermolecular hydrogen bonds. Furthermore, kinetic data from Normal Mode Analysis (NMA) yields an eigenvalue of 4.498936 x 10^-7, indicating exceptional dynamic stability of the receptor-vaccine complex under simulated physiological motion. Finally, the dataset includes a 174 bp DNA sequence demonstrating perfect in silico codon optimization (CAI = 1.0, GC = 50.57%) for Escherichia coli K12 expression.

How the Data Can Be Interpreted and Used
This computational dataset serves as a mathematically validated structural blueprint. Researchers can directly download the provided .pdb coordinate files to conduct independent, long-duration Molecular Dynamics (MD) simulations or execute comparative molecular docking against other teleost pattern recognition receptors (PRRs). Additionally, the provided consensus sequences and codon-optimized E. coli DNA files can be directly utilized by wet-lab researchers and molecular biologists to physically synthesize the gene, transitioning this design into in vitro recombinant mass production and subsequent in vivo biological challenge trials in Oreochromis species.

研究假说
本研究的核心假说为：经理性设计的、含58个氨基酸的多表位疫苗构建体（Multi-Epitope Vaccine Construct, MEVC），整合了来自罗非鱼细小病毒（Tilapia Parvovirus, TiPV）VP1衣壳蛋白的高度保守B细胞表位与T细胞表位，并在N端连接了促吞噬素（Tuftsin）佐剂，可与硬骨鱼Toll样受体3（Toll-Like Receptor 3, TLR3）形成热力学稳定、高亲和力的复合物，从而触发强烈的固有免疫与适应性免疫级联反应。

数据集展示内容与重要发现
本数据集包含原始病毒序列、多序列比对结果、三维结构坐标文件（.pdb）以及最终的受体-配体对接复合物。结构验证数据证实，从头建模获得的疫苗构建体具备最优立体化学几何构象，所有残基均处于拉马钱德兰（Ramachandran）首选区或允许区内。分子对接与热力学特征分析数据显示，该复合物具有极强的自发结合亲和力（ΔG = -21.5 kcal/mol），解离常数达到亚飞摩尔级（1.6 × 10^-16 M）。对接得到的.pdb复合物界面分析表明，其接触面积高达2074.4 Ų，由9个分子间氢键共同稳定。此外，正态模式分析（Normal Mode Analysis, NMA）得到的动力学数据显示其特征值为4.498936 × 10^-7，表明该受体-疫苗复合物在模拟生理运动条件下具有优异的动态稳定性。最后，数据集包含一段174 bp的DNA序列，经计算机模拟验证可完美适配大肠杆菌K12（Escherichia coli K12）表达体系，其密码子适应指数（CAI）为1.0，GC含量为50.57%。

数据集的解读与应用方向
本计算数据集是一份经数学验证的结构蓝图。研究人员可直接下载提供的.pdb坐标文件，开展独立的长期分子动力学（Molecular Dynamics, MD）模拟，或针对其他硬骨鱼模式识别受体（Pattern Recognition Receptors, PRRs）开展对比分子对接实验。此外，湿实验研究人员与分子生物学家可直接使用提供的共有序列与密码子优化后的大肠杆菌DNA文件，物理合成该基因，将本设计推进至体外重组大规模生产阶段，并后续开展罗非鱼属（Oreochromis）物种的体内生物学攻毒试验。