Santa Cruz Biotechnology is expanding our monoclonal antibody product line. We offer monoclonal antibodies directed against steroid receptors, representing essentially all targets covered by polyclonal antibodies. Steroid receptors are nuclear receptors typically found in the cytoplasm. Upon steroid ligand binding, the steroid receptor translocates into the nucleus where it acts as a transcription factor and directs gene expression. Steroid receptor activity has a profound influence on development, metabolism, and organism homeostasis.