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 Input:
Sucrose - specific signalling represses translation of the Arabidopsis ATB2 bZIP transcription factor gene .

Ex Output:
bZIP transcription factor

Ex Input:
Overexpression of wild type and SeCys / Cys mutant of human thioredoxin reductase in E . coli : the role of selenocysteine in the catalytic activity .

Ex Output:
human thioredoxin reductase

Ex Input:
Although polyubiquitin chains linked through Lys ( 29 ) of ubiquitin have been implicated in the targeting of certain substrates to proteasomes , the signaling properties of these chains are poorly understood .

Ex Output:
polyubiquitin chains