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:
 Recombinant caspases are typically produced in Escherichia coli expression systems with the attendant problems of solubilization , re - folding and activation of the protease .

Ex Output:
Recombinant caspases


Ex Input:
 Wild type MEKK1 enhances promoter activity and the activity can be inhibited by dominant negative MEKK1 , MEK1 , MEK7 , MEK3 , p38 / RK , and c - Jun .

Ex Output:
c - Jun


Ex Input:
 The vaccinia virus D6R open reading frame encodes the small subunit of the heterodimeric vaccinia virus early transcription factor ( VETF ) that activates transcription of early genes in vitro .

Ex Output:

early genes