Review Question - QID 108768

A 9-year-old male is brought to the pediatrician by his mother because of several days of fever and chills. In addition, his mom notes that he has complained about muscle aches and joint pain. He recently returned from a boy scout trip where he went swimming, hiking, and camping. He has otherwise been healthy and has no past medical history. His mother also notes that one of his siblings was recently ill with an upper respiratory tract infection. Physical exam reveals an agitated, ill-appearing boy with the rash shown in Figure A. Based on clinical suspicion, the boy is started on a course of antibiotics. Which of the following describes the mechanism of action for the antibiotic most likely administered in this case?