Katsumi Imada

This study identifies a conserved residue in FlhA that couples export gate activation to substrate specificity switching in bacterial flagellar assembly.

The paper presents a cryoEM structure of the FliPQR complex in closed form, revealing how FliE opens the periplasmic gate for flagellar rod assembly.

This paper reports cryoEM structures of the flagellar MS-ring and identifies how FliF subunits adopt different conformations to generate three rotational symmetries.

The paper determines the structure of the Na+-driven stator PomAB from Vibrio using cryo-EM and reveals the sodium ion pathway, ion selectivity mechanism, and inhibition by phenamil.

The paper reports the near-atomic structure of the S-ring from Vibrio alginolyticus flagellar motor using cryo-EM, revealing structural differences compared to Salmonella.