Detailed Instructions: 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.
See one example below:
Problem: Sox - 4 is important for very early B - cell differentiation , while TCF - 1 / LEF - 1 play a crucial role in early thymocyte development 
Solution: TCF - 1
Explanation: The gene, TCF - 1 has been tagged as protein since it plays a crucial role in early thymocyte development.

Problem: Cooperative effects for CYP2E1 differ between styrene and its metabolites.
Solution:
CYP2E1