Abstract

Abstract Course-based undergraduate research experiences (CUREs) can engage a large, diverse group of students in authentic research, promote student research skills, student content knowledge, scientific literacy, critical thinking and analysis skills, support student self-efficacy, and at the same time provide a means to advance faculty research productivity. These varied goals of a CURE course, at times, can prove to be competing. For example, courses aimed at providing advanced levels of student input in design of research questions, hypotheses and protocols can veer from faculty research goals. In an effort to balance these competing objectives, we designed a CURE course engaging students at Towson University with research ongoing at the University of Maryland, School of Medicine aimed at characterizing the function of bacterial Toll/interleukin 1 receptor (TIR) domain containing proteins. Bacterial TIR proteins were originally characterized as virulence factors that impede mammalian innate immune signaling, but recently also have been shown to exhibit enzymatic NADase activity. Students in the CURE course used bioinformatics analysis of modeled structures of bacterial TIRs to predict sites for NADase function and hypothesized the effects of mutations of these sites on TIR functions. Students then designed and created recombinantly-expressed proteins mutated at their predicted sites and tested their mutant proteins for both NADase function and potential inhibition of mammalian innate immune signaling. This course outline thus allowed student engagement in project design and hypothesis formation, while also maintaining projects aimed at advancing a specific faculty research program.

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