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yrdA | Transferase. (178 aa) | ||||
sdeA | Sid related protein-like; Secreted effector that interferes with the host cell ubiquitin pathway and is required for intracellular bacterial replication. Catalyzes the ubiquitination of several mammalian Rab proteins (Rab33b, Rab1, Rab6a and Rab30) during L.pneumophila infection, without engaging the standard cellular enzyme cascade (E1 and E2). Transfers an ADP-ribose moiety from NAD to the 'Arg-42' residue of ubiquitin in a reaction that releases nicotinamide. The modified ubiquitin is subsequently transferred to serine residues of the substrate protein via a phosphoribose linker tha [...] (1506 aa) | ||||
sidJ | Hypothetical protein; Glutamylase that mediates the covalent attachment of glutamate moieties to SdeA on one of the catalytic residues that is required for its mono-ADP-ribosyltransferase activity. In turn, inhibits SdeA ubiquitinating activity. Glutamylates also related SdeB, SdeC and SidE. Glutamylase activity only occurs in the host since it requires host calmodulin. May also reverse the SdeA-mediated substrate ubiquitination by cleaving the phosphodiester bond that links phosphoribosylated ubiquitin to protein substrates via its deubiquitinase activity. (873 aa) | ||||
lpg0820 | Endonuclease. (97 aa) |