TASK DEFINITION: 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.
PROBLEM:  In cotransfection assays , a small fragment of Sin retaining the Src - SH3 - binding site and one tyrosine - containing motif induced c - Src activation as measured by a transcriptional reporter .

SOLUTION: c - Src

PROBLEM:  Promoter activity of the proliferating - cell nuclear antigen gene is associated with inducible CRE - binding proteins in interleukin 2 - stimulated T lymphocytes .

SOLUTION: interleukin 2

PROBLEM:  To obtain information on the functional role of the Rac1 / p38 / MAPKAPK - 2 pathway in RA signaling , the effects of pharmacological inhibition of p38 on RA - induced gene transcription and cell differentiation were determined .

SOLUTION:
MAPKAPK - 2