wBm0076 is a WAS family protein that likely promotes actin cytoskeletal rearrangements and has sequence homology to RickA, a protein expressed by Rickettsia conorii that is known to activate Arp2/3 and drive the polymerization of host actin to support bacterial intracellular motility during infection, similar to that of Listeria monocytogenes [67, 83]. Here, WAS is linked to infection.