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Novel Conserved Assembly Factor of the Bacterial Flagellum

Björn Titz,^1, Seesandra V. Rajagopala,^1,2, Claudia Ester,¹ Roman Häuser,¹ and Peter Uetz^1,2*

Institute of Genetics, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany,¹ The Institute for Genomic Research, Rockville, Maryland 20850²

Received 8 June 2006/ Accepted 14 August 2006

TP0658 (FliW) and its orthologs, conserved proteins of unknown function in Treponema pallidum and other species, interact with a C-terminal region of flagellin (FlaB1-3 in T. pallidum; FliC in most other species). Mutants of orthologs in Bacillus subtilis and Campylobacter jejuni (yviF, CJ1075) showed strongly reduced motility. TP0658 stabilizes flagellin in a way similar to FliS, suggesting that TP0658 is a conserved assembly factor for the bacterial flagellum.

Published ahead of print on 25 August 2006.

B.T. and S.V.R. contributed equally to this study.

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