Phage Sf6 ejection mechanisms
- ๐ค Speaker: Professor Kristin N. Parent, Michigan State University, East Lansing, United States
- ๐ Date & Time: Tuesday 17 January 2017, 15:30 - 16:00
- ๐ Venue: Online
Abstract
Outer membrane proteins A and C mediate Sf6 infection by dramatically increasing the rate and efficiency of genome ejection. I will describe a combination of in vivo studies with omp null mutants of Shigella flexneri, including classic phage assays and time-lapse fluorescence microscopy to monitor genome ejection at the single virion level, and cryo-electron tomography of phage โinfectingโ outer membrane vesicles. In addition, mutagenesis studies have demonstrated key regions in OmpA that mediate infection. We conclude that Sf6 phage entry utilizes either outer membrane proteins A or C, with outer membrane protein A being the preferred receptor.
Series This talk is part of the Bacteriophage 2017 series.
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Professor Kristin N. Parent, Michigan State University, East Lansing, United States
Tuesday 17 January 2017, 15:30-16:00