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Regulator of Actin-Based Motility (RoaM) Downregulates Actin Tail Formation by Rickettsia rickettsii and Is Negatively Selected in Mammalian Cell Culture

14 Mar 2022

Abstract excerpt

has been studied extensively, but here, we provide genetic evidence that motility is a regulated process in R. rickettsii. The findings also suggest that serial passage of rickettsial strains in cell culture may cause the bacteria to lose essential genes that are no longer conserved under natural selective pressure. These findings are likely relevant to the interpretation of studies concerning virulence...

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PMID: 35285700
DOI: 10.1128/mbio.00353-22

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