Detailed Instructions: 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.
Q:  We performed initial cell , cytokine and complement depletion studies to investigate the possible role of these effectors in response to vaccination with heat - killed Burkholderia mallei in a susceptible BALB / c mouse model of infection .
A:
Burkholderia mallei