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.

Inhibition of Th1 differentiation by IL - 6 is mediated by SOCS1 .
IL - 6

Under the same conditions , Lck did not stimulate IL - 2 promoter unless it was activated by mutation .
IL - 2

Pterin carbinolamine dehydratase / dimerization cofactor of HNF1 ( PCD / DCoH ) is a protein that has a dual function .
PCD / DCoH