In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

 This case is of interest because therapeutic failure of ampicillin and tobramycin in S . faecium endocarditis has not been reported previously , but might have been predicted on the basis of previous in vitro and in vivo studies [ 6 ] .
S . faecium