Compilation of the activities of the RecA, SSB, RuvA, RuvB and RecU proteins from M. pneumoniae, M. genitalium and reference bacteria.

1The RuvBFH protein is exclusively expressed by subtype 2 strains of M. pneumoniae. Subtype 1 strains express a RuvB protein (RuvBM129) that differs in a single amino acid residue from RuvBFH. RuvBM129 has significantly lower ATPase and DNA helicase activities than RuvBFH[18].2RecUMpn is only expressed by subtype 2 strains of M. pneumoniae. Subtype 1 strains are unable to express a full-length RecU protein due to the presence of a nonsense mutation in the RecU gene (MPN528a) [19].3The SSB-dependence of the RecAMge protein was determined using SSBMpn and SSBEco[15]. The SSBMge protein has not yet been characterized.n.a., not applicable.