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.
Q: Overexpression of SNURF in cultured mammalian cells enhanced not only androgen , glucocorticoid , and progesterone receptor - dependent transactivation but also basal transcription from steroid - regulated promoters .
A:
progesterone receptor