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.

In a previous report of two patients with familial glucocorticoid resistance due to reduced numbers of glucocorticoid receptors ( GR ) , we have shown decreased numbers of GR in peripheral mononuclear cells and cultured fibroblasts but normal affinity of GR in both patients .
glucocorticoid receptors