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.

 HIV replication was increased by PC - PLC in chronically infected monocytes and T lymphocytes .
PC - PLC

 In this study , we utilized this technology to identify HLA DQ - restricted Ag - specific T cells in the peripheral blood of human subjects and to identify immunodominant epitopes associated with viral infection .
HLA DQ

 L2 and L2 variant cells were tested for IL - 2 responsiveness and rapamycin sensitivity with respect to specific kinase activity , PCNA expression and proliferation .

IL - 2