This superfamily entry represents the C-terminal domain, FlgT-C, of FlgT (flagellar assembly protein T), a flagellar protein that make up part of the basal body of the flagellum. FlgT is composed of three domains, the N-terminal domain (FlgT-N), the middle domain (FlgT-M), and the C-terminal domain (FlgT-C). The flagellum is a large macromolecular assembly composed of three major parts: the basal body, the hook, and the filament. The basal body has two unique ring structures, the T ring and the H ring. FlgT is required to form and stabilise both ring structures. FlgT-C is made up of seven beta-strands and a helical segment, arranged in a core beta-barrel structure and a beta-hairpin. The C-terminal domain of FlgT is not essential but stabilises the H-ring structure PMID:23530206.

PFAM:PF16538, INTERPRO:IPR032388,DOI:10.1073/pnas.1222655110