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:  These data suggest that these kappa B - specific proteins have a role in the coordinate regulation of this growth factor - growth factor receptor gene system that controls T cell proliferation .

A: growth factor receptor
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Q:  The activation of this signaling pathway requires functional CD4 receptors and is independent of binding to CXCR4 .

A: CD4 receptors
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Q:  Thus , LKLF is both necessary and sufficient to program quiescence in T cells and functions , in part , by negatively regulating a c - Myc - - dependent pathway .

A:
c - Myc
****