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.

These data suggest that ubiquitous expression of the tolerizing Ad5 E1A peptide within a short period of time causes activation - induced cell death of Ad5 E1A - specific CTLs .
Ad5 E1A

Binding of progestins to the glucocorticoid receptor .
glucocorticoid receptor

Lymphoma cells from both cases showed the mature B - cell immunophenotype and had rearrangements of the BCL6 gene .
BCL6 gene