Instructions: 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.
Input: Taken together with prior in vivo transcription studies , these results suggest that the biological activities of p65 and p50 homodimers are independently regulated , thereby providing an integrated and flexible control mechanism for the rapid activation and repression of NF - kappa B / Rel - directed gene expression .
Output:
p50 homodimers