Abstract
The SulA protein of Escherichia coli and related bacteria interacts directly with FtsZ, blocking cell division by disrupting Z-ring formation, yet the precise mechanism remains not fully understood. Previous demonstrations of Pseudomonas aeruginosa SulA's dimerization capability were confined to X-ray crystallography and lacked confirmation under in vivo conditions. Additionally, uncertainty persisted regarding the dimerization potential of E. coli's SulA protein. This paper employs a bacterial two-hybrid system to establish that both P. aeruginosa and E. coli SulA proteins indeed possess the capacity for dimerization.
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