The N-terminal domain of the FlgJ protein is directly involved in flagellar rod assembly, while the adjacent C-terminal domain is a flagellum-specific muramidase (peptidoglycan hydrolase) required for formation of the outer membrane L ring [1].
Hirano T, Minamino T, Macnab RM.
The role in flagellar rod assembly of the N-terminal domain of Salmonella FlgJ, a flagellum-specific muramidase.
J. Mol. Biol. 312 359-69 2001
[PubMed: 11554792] http://dx.doi.org/10.1006/jmbi.2001.4963