Hati Sanchita, Bhattacharyya Sudeep
Department of Chemistry, University Wisconsin, Eau Claire, Wisconsin.
Biochem Mol Biol Educ. 2016 Mar-Apr;44(2):140-59. doi: 10.1002/bmb.20942. Epub 2016 Jan 23.
A project-based biophysical chemistry laboratory course, which is offered to the biochemistry and molecular biology majors in their senior year, is described. In this course, the classroom study of the structure-function of biomolecules is integrated with the discovery-guided laboratory study of these molecules using computer modeling and simulations. In particular, modern computational tools are employed to elucidate the relationship between structure, dynamics, and function in proteins. Computer-based laboratory protocols that we introduced in three modules allow students to visualize the secondary, super-secondary, and tertiary structures of proteins, analyze non-covalent interactions in protein-ligand complexes, develop three-dimensional structural models (homology model) for new protein sequences and evaluate their structural qualities, and study proteins' intrinsic dynamics to understand their functions. In the fourth module, students are assigned to an authentic research problem, where they apply their laboratory skills (acquired in modules 1-3) to answer conceptual biophysical questions. Through this process, students gain in-depth understanding of protein dynamics-the missing link between structure and function. Additionally, the requirement of term papers sharpens students' writing and communication skills. Finally, these projects result in new findings that are communicated in peer-reviewed journals.
本文描述了一门基于项目的生物物理化学实验室课程,该课程面向生物化学与分子生物学专业的大四学生开设。在这门课程中,关于生物分子结构与功能的课堂学习与运用计算机建模和模拟对这些分子进行探索导向型实验室研究相结合。特别地,运用现代计算工具来阐明蛋白质中结构、动力学和功能之间的关系。我们在三个模块中引入的基于计算机的实验室规程,让学生能够可视化蛋白质的二级、超二级和三级结构,分析蛋白质-配体复合物中的非共价相互作用,为新的蛋白质序列构建三维结构模型(同源模型)并评估其结构质量,以及研究蛋白质的内在动力学以理解其功能。在第四个模块中,学生被分配一个实际研究问题,在其中他们运用(在模块1 - 3中获得的)实验室技能来回答概念性生物物理问题。通过这个过程,学生深入理解蛋白质动力学——结构与功能之间缺失的环节。此外,学期论文的要求提高了学生的写作和沟通能力。最后,这些项目产生了新的研究成果,并在同行评审期刊上发表。