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:  The regulation of GM - CSF expression is seen in both normal human mitogen - activated T lymphocytes and T lymphocytes from a line ( S - LB1 ) transformed with human T cell lymphotropic virus 1 ( HTLV - 1 ) .

Answer: GM - CSF


Question:  A constitutive activation of STAT factors could explain the increased proliferation of P . vera cells even in the absence of growth factor stimulation .

Answer: STAT factors


Question:  Whether the detected transcripts are translated into functional receptor proteins remains to be determined .

Answer:
functional receptor proteins