Phun With Phages: Discovering Novel Bacteriophages in the Soil

We used three bacterial hosts: Mycobacterium smegmatis, Microbacterium foliorum, and Gordonia terrae, to isolate novel bacteriophages from soil samples. We named these phages, created high titer lysates, and purified their DNA genomes. We have archived the high titer lysates at Northwestern College and the University of Pittsburgh. The genomes of three of our phages were sequences at the University of Pittsburgh and we will be sequencing the remaining genomes this summer. Additionally, we are planning to image our phages with transmission electron microscopy at the University of Iowa or Nebraska yet this semester

Mousing Around with Bacteriophages: ​Using Antibodies Raised in BALB/c Mice to Analyze Phages​

Bacteriophages are viruses that infect bacteria and can be used in phage therapy to combat bacterial infections resistant to traditional antibiotics. One current limitation of phage therapy is the lack of understanding about phage genetics and biochemistry. We can learn more about bacteriophages by identifying patterns in their protein structure. In our experiments, we immunized BALB/c mice using whole phage or ~71\u3ekDa proteins extracted from Sbash and Island3. We tail-bled the mice to collect antibodies raised against these phages, then used ELISA assays to detect anti-phage protein antibodies in mouse serum. We are using our antibodies and Western blot analysis to understand biochemical relationships between Island3, Sbash, and several other bacteriophages that infect Mycobacterium smegmatis