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:  A series of transient transfections performed with human IL - 3 - chloramphenicol acetyltransferase ( CAT ) reporter plasmids in T and non - T cells revealed that a plasmid containing 319 bp of 5 ' flanking sequences was active exclusively in T cells .

A: IL - 3
****
Q:  We have explored the possibility of using antibodies against purified rat liver glucocorticoid receptors to study the immunochemical properties of glucocorticoid receptors from murine and human malignant lymphocytes .

A: glucocorticoid receptors
****
Q:  Furthermore , supernatant from Dx - treated CTL contained a nondialyzable factor which inhibited DNA synthesis and cell growth of CTL clones induced by IL 2 .

A:
IL 2
****