| PGRMC1 | 
|---|
|  | 
|  | 
| Identifiers | 
|---|
| Aliases | PGRMC1, HPR6.6, MPR, progesterone receptor membrane component 1, Dap1, IZA, 25-Dx | 
|---|
| External IDs | OMIM: 300435; MGI: 1858305; HomoloGene: 48457; GeneCards: PGRMC1; OMA:PGRMC1 - orthologs | 
|---|
|  | 
| | Gene location (Mouse) | 
|---|
 |  |  | Chr. | X chromosome (mouse) | 
|---|
 |  |  | Band | X|X A3.3 | Start | 35,861,859 bp | 
|---|
 | End | 35,869,732 bp | 
|---|
 | 
| | RNA expression pattern | 
|---|
 | Bgee | | Human | Mouse (ortholog) | 
|---|
 | | Top expressed in |  | seminal vesicula
 caput epididymis
 corpus epididymis
 tail of epididymis
 bronchial epithelial cell
 Pons
 endometrium
 skin of thigh
 middle temporal gyrus
 pars compacta
 | 
 | | Top expressed in |  | olfactory epithelium
 transitional epithelium of urinary bladder
 paraventricular nucleus of hypothalamus
 arcuate nucleus
 ventromedial nucleus
 suprachiasmatic nucleus
 anterior amygdaloid area
 lateral septal nucleus
 left lobe of liver
 dorsomedial hypothalamic nucleus
 | 
 |  | More reference expression data | 
 | 
|---|
 | BioGPS |  | 
|---|
 | 
|  | 
|  | 
| Wikidata | 
|  | 
Progesterone receptor membrane component 1 (abbreviated PGRMC1) is a protein which co-purifies with progesterone binding proteins in the liver and ovary. In humans, the PGRMC1 protein is encoded by the PGRMC1 gene.
The sole biochemical function of PGRMC1 is heme-binding. PGRMC1 shares key structural motifs with cytochrome b5.  PGRMC1 binds and activates P450 proteins, which are important in drug, hormone and lipid metabolism.  PGRMC1 also binds to PAIR-BP1 (plasminogen activator inhibitor RNA-binding protein-1).  However, its expression outside of the reproductive tract and in males suggests multiple functions for the protein.  These may include binding to Insig (insulin-induced gene), which regulates cholesterol synthesis.