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:
Dissociation of the steroid and oxidation of receptor thiol group ( s ) lead to the inactive receptor form ( state E ) .

Ex Output:
receptor thiol group

Ex Input:
In contrast , 50 % downmodulation of HLA - A2 by Nef required 16 to 24 h and about 50 - to 100 - fold - greater concentrations of 4 - HT .

Ex Output:
HLA - A2

Ex Input:
These data suggest that ubiquitous expression of the tolerizing Ad5 E1A peptide within a short period of time causes activation - induced cell death of Ad5 E1A - specific CTLs .

Ex Output:
Ad5 E1A