text_1: The tip of the inner tube of the toxic type VI secretion system (T6SS) antibacterial effector in Escherichia coli (E. coli) is decorated with VgrG and PAAR proteins.
text_2: Recent studies determined that a rapid conformational change in the structure of a sheath protein complex propels T6SS spike and tube components along with antibacterial and antieukaryotic effectors out of predatory T6SS(+) cells and into prey cells.