An extreme clockwise switch bias mutation in fliG of Salmonella typhimurium and its suppression...

Reports on an extreme clockwise switch bias mutation in the fliG gene of Salmonella typhimurium. Suppression of the fliG gene by slow-motile mutations in motA and motB; Isolation of the second-site suppressor mutant pseudorevertants; Discussion of the importance of Lys28 and Asp33 of the MotB sequence for proton delivery.