TASK DEFINITION: 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.
PROBLEM:  Number of glucocorticoid receptors in lymphocytes and their sensitivity to hormone action .

SOLUTION: glucocorticoid receptors

PROBLEM:  EBV utilizes CD21 / CR2 as its receptor on B cells to initiate the infection process .

SOLUTION: CD21 / CR2

PROBLEM:  Moderate - to - severe intraductal epithelial hyperplasias were more often associated with immunoglobulin G localization that were other benign lesions

SOLUTION:
immunoglobulin G