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The human Progesterone Receptor (PgR) is a member of the steroid family of nuclear receptors. PgR is found as a 120 kDa protein (Form B) or a 94 kDa protein (Form A) due to the use of alternative translation initiation sites. In its inactive state, PgR forms a multiprotein complex which includes heat shock proteins and immunophins. Upon binding of progesterone hormone to its receptor, there is a conformational change that allows dimerization and binding of the receptor to progesterone response elements (PRE) sequences, resulting in activated transcription.
![Western Blot Progesterone R/NR3C3 Antibody [Unconjugated]](http://images.novusbio.com/fullsize/antibody/Progesterone_R_AF5415_Western_Blot_5715.jpg)
![Immunocytochemistry Progesterone R/NR3C3 Antibody [Unconjugated]](http://images.novusbio.com/fullsize/antibody/Progesterone_R_AF5415_Immunocytochemistry__Immunofluorescence_20674.jpg)
![Immunohistochemistry Progesterone R/NR3C3 Antibody [Unconjugated]](http://images.novusbio.com/fullsize/antibody/Progesterone_R_AF5415_Immunohistochemistry_20779.jpg)
![Simple Western Progesterone R/NR3C3 Antibody [Unconjugated]](http://images.novusbio.com/fullsize/antibody/af5415_human-progesterone-r-nr3c3-affinity-purified-polyclonal-ab-simple-western-277202114222.jpg)
![ELISA Progesterone R/NR3C3 [Biotin]](http://images.novusbio.com/fullsize/dyc5415-2_human-total-progesterone-r-nr3c3-duoset-ic-elisa-2-plate-elisa-1592020145925.jpg)
