A 34-year-old woman presents with abdominal pain made better by ingestion of bland food. A diagnosis of Helicobacter pylori is made. If the DNA had been analyzed, a region of unique DNA coding for the Cag A protein and its type VI injection-like secretion system would be found. What is this segment of DNA called?

Question

Quizplus · Accepted Answer

Pathogenicity islands carry virulence genes and sometimes secretion systems and are often of different GC:AT ratios than most of the organism's other DNA, suggesting it was acquired from another organism.

A 34-Year-Old Woman Presents with Abdominal Pain Made Better by Ingestion