FtsZ is a protein found in many bacteria that plays a crucial role in cell division. It forms a ring-like structure at the site where the cell will divide, helping to organize the process. This ring is essential for the formation of the septum, which ultimately separates the two daughter cells. The function of FtsZ is similar to that of tubulin in eukaryotic cells, as it polymerizes to create a filamentous structure. This protein is highly conserved across different bacterial species, making it an important target for research in understanding bacterial growth and potential antibiotic development.