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: Consider Input:  In this study we investigated the mechanism of the inhibitory effect of protease inhibitors on the proinflammatory cytokine production of lipopolysaccharide - ( LPS ) stimulated monocytes .

Output: proinflammatory cytokine


Input: Consider Input:  Inclusion of the sequences between - 4 and + 52 enhanced promoter activity ; this was primarily because of an Sp1 recognition site at + 9 / + 15 .

Output: Sp1 recognition site


Input: Consider Input:  Sequential involvement of NFAT and Egr transcription factors in FasL regulation .


Output: transcription factors