Shanle Erin K, Tsun Ian K, Strahl Brian D
Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Department of Biology, University of North Carolina at Pembroke, Pembroke, North Carolina.
Biochem Mol Biol Educ. 2016 Jan-Feb;44(1):68-74. doi: 10.1002/bmb.20927. Epub 2015 Nov 5.
Course-based undergraduate research experiences (CUREs) provide an opportunity for students to engage in experiments with outcomes that are unknown to both the instructor and students. These experiences allow students and instructors to collaboratively bridge the research laboratory and classroom, and provide research experiences for a large number of students relative to traditional individual mentored research. Here, we describe a molecular biology CURE investigating the impact of clinically relevant mutations found in the bromodomain of the p300 transcriptional regulator on acetylated histone interaction. In the CURE, students identified missense mutations in the p300 bromodomain using the Catalogue of Somatic Mutations in Cancer (COSMIC) database and hypothesized the effects of the mutation on the acetyl-binding function of the domain. They cloned and purified the mutated bromodomain and performed peptide pulldown assays to define its potential to bind to acetylated histones. Upon completion of the course, students showed increased confidence performing molecular techniques and reported positively on doing a research project in class. In addition, results generated in the classroom were further validated in the research laboratory setting thereby providing a new model for faculty to engage in both course-based and individual undergraduate research experiences.
基于课程的本科研究经历(CUREs)为学生提供了参与实验的机会,这些实验的结果对于教师和学生来说都是未知的。这些经历使学生和教师能够共同搭建起研究实验室和课堂之间的桥梁,并且相对于传统的个人指导研究而言,能为大量学生提供研究经历。在此,我们描述了一项分子生物学CURE,该研究探究了在p300转录调节因子的溴结构域中发现的临床相关突变对乙酰化组蛋白相互作用的影响。在这个CURE中,学生们使用癌症体细胞突变目录(COSMIC)数据库在p300溴结构域中鉴定错义突变,并推测该突变对该结构域乙酰结合功能的影响。他们克隆并纯化了突变的溴结构域,并进行了肽段下拉实验以确定其与乙酰化组蛋白结合的潜力。课程结束时,学生们在进行分子技术操作时表现出更高的信心,并对在课堂上开展研究项目给予了积极评价。此外,课堂上产生的结果在研究实验室环境中得到了进一步验证,从而为教师参与基于课程的本科研究经历和个人本科研究经历提供了一个新的模式。