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.

 The intracellular water phase concentration of glucocorticoid receptors ( around 40 nmol / l cell water ) , and the dependence of receptor affinity on temperature were similar in normal and malignant rodent and human cells .
glucocorticoid receptors