This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Pseudomonas exotoxin inhibits protein synthesis by inhibiting ? \nSelect and explain. \nA. RNA polymerase, B. EF-2, C. Transpeptidase, D. Reverse transcriptase', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., EF-2 Exotoxin 'A' of P. aeruginosa inhibits protein synthesis through interference with adenosine diphosphate ribosylation of elongation factor - 2. Remember Bacterial toxins inhibiting protein synthesis : Exotoxin A of P aeruginosa Shiga toxin (Shigella) Diphtheria toxin Shiga like toxin or verocytotoxin of EHEC.", 'role': 'assistant'}]