Pseudomonas exotoxin inhibits protein synthesis by inhibiting -: (A) RNA polymerase, (B) EF-2, (C) Transpeptidase, (D) Reverse transcriptase
Answer is B. Ans. is 'b' i.e., EF-2 o Exotoxin 'A* of P. aeruginosa inhibits protein synthesis through interference with adenosine diphosphate ribosylation of elongation factor - 2.Remembero Bacterial toxins inhibiting protein synthesis:#Exotoxin A of P. aeruginosa# Shiga toxin (Shigella)# Diphtheria toxin# Shiga like toxin or verocytotoxin of EHEC.