what is a type III secretion system?

a method bacteria use to gain entrance to host cells, by which they initially use pili to make contact with the host cell membrane and then form a pore by which proteins can be injected into the host cell/nutrients can be extracted from the host cell. More test answers on https://studyhippo.com/intracellular-bacteria-75399/

what kinds of things can be transferred into the host cell by a pathogen via the type III secretion system?

transcription factors, to allow the host cell control via the invading pathogen More test answers on https://studyhippo.com/intracellular-bacteria-75399/

fever and scant bloody diarrhea with mucus and pus, although in the early stages of disease voluminous watery diarrhea is seen in many patientsdoes not invade beyond the mucosa to reach the lamina propria and the mesenteric lymph nodes and does not lead to bacteremia.antibiotics shortens the duration of symptoms and sheddingreplacement of fluid and electrolytes. Only rarely does a chronic carrier state occur. Invasiveness is the primary virulence factor,has enterotoxic, cytotoxic, and neurotoxic activities, and is nearly identical to the verotoxin produced by EHEC strains of E. coliformation of actin “comets”, similar to the mechanism used by ListeriaType III secretion system and uses the “trigger”-type mechanism to invade target cells.contains a large (220 kb) virulence plasmid which carries the genes for these virulence factors.

S. sonnei accounts for between 60 and 80 percent of the cases remaining cases are mostly caused by S. flexneri. More test answers on

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What is Type Iii Secretion System?

The Type III Secretion System (T3SS) is a molecular syringe that certain bacteria use to inject toxins into host cells. It is a process of translocation and consists of several proteins which are secreted by the bacteria and injected into the host cell’s cytoplasm. The T3SS enables pathogenic bacteria to penetrate and invade host cells, while also evading immune defenses. It is responsible for a variety of human diseases, including gastrointestinal infections, sepsis, meningitis, and cholera.The T3SS allows bacterial pathogens to inject effector proteins into the cell membrane of their target eukaryotic cell. This injection allows the bacteria to manipulate cellular processes in order to survive within the host cell and replicate itself inside it. The effector proteins secreted by the T3SS are able to act as toxins that inhibit or even destroy important cellular components such as DNA replication machinery or protein synthesis machinery, thus allowing bacterial replication inside the eukaryotic cell without being attacked by its immune system. Additionally, some effector proteins can act as virulence factors that promote infection by binding receptors on target cells or promoting phagocytosis of invading bacteria into cells. In recent years, researchers have been working towards understanding how this system works in detail in order to develop new treatments for diseases caused by bacterial pathogens using this secretion system. Understanding how this type of secretion works will help us develop better therapeutics against pathogenic infections in humans as well as animals and plants alike due to its widespread use among various species of microorganisms causing disease worldwide.