Type III Secretion Systems (T3SSs), Structuring and Functions

Many bacterial species that cause diseases in plants and animals assemble large molecular machinery and the third secretion system (T3SS) is an important system that performs important and complex biological tasks such as the movement and transport of proteins from the bacterial cytoplasm through peri- and extracellular cells. They are used to infect cells or immune cells in the host body by injecting potent and toxic proteins directly into the host cell. In this review, we discuss our understanding of the structure, Assembly, Functions and architecture of type III secretion system (T3SS).