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:  The human protein binds most strongly to the SH3 domain from the abl proto - oncogene .

A: SH3 domain
****
Q:  Base substitutions within this NFIL - 6 site resulted in virtual elimination of LPS - induced IL - 1 beta gene transcription .

A: IL - 1
****
Q:  There are two regulatory regions between the US3 and the US6 transcription units .

A:
US6 transcription units
****