This is the N-terminal domain of SidC present in Legionella pneumophilia. SidC appears to be involved in modulating mammalian trafficking by promoting the communication between ER-derived vesicles and the Legionella containing vacuole. The N-terminal domain (SidC-N) has a novel fold with 4 potential subdomains. SidC-N does not show structural similarity to any known protein domain in the protein data bank [1].

1: The structure of the N-terminal domain of the Legionella protein SidC. Gazdag EM, Schobel S, Shkumatov AV, Goody RS, Itzen A; J Struct Biol. 2014;186:188-194. PMID:24556577