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.

[EX Q]:  This regulation is mediated by several kinases that phosphorylate specific residues in the different functional domains of the p53 molecule .
[EX A]: p53 molecule

[EX Q]:  In the studies described in this report , we have identified two potential Ets binding sites , EBS1 and EBS2 , which are conserved in both the human and murine interleukin - 2 enhancers .
[EX A]: interleukin - 2

[EX Q]:  VAV and SOCS1 form a protein complex through interactions between the VAV NH ( 2 ) - terminal regulatory region and the SH2 domain of SOCS1 in a phosphotyrosine - independent manner .
[EX A]:
SH2 domain