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.
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Question:  It has been previously reported that IL - 2 release in activated Jurkat T requires caspase - like activity ( Posmantur et al . ( 1998 ) Exp . Cell . Res . 244 , 302 - 309 ) .

Answer: IL - 2


Question:  In addition , the MAP / Erk kinase kinase inhibitor PD98059 did not abrogate SDF1 alpha - induced chemotaxis .

Answer: SDF1 alpha


Question:  Lymphocytes from patients with untreated adrenal insufficiency had fewer binding sites ( 3364 + / - 322 ) and a 2 - fold increase in binding affinity ( 5 . 4 + / - 0 . 9 mM ) .

Answer:
binding sites