PGRMC1 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Progesterone receptor membrane component 1 (abbreviated PGRMC1) is a protein which co-purifies with progesterone binding proteins in the liver and ovary.[5][6] In humans, the PGRMC1 protein is encoded by the PGRMC1 gene.[7]
The sole biochemical function of PGRMC1 is heme-binding.[8][9] PGRMC1 shares key structural motifs with cytochrome b5.[10] PGRMC1 binds and activates P450 proteins,[11][12][13] which are important in drug, hormone and lipid metabolism. PGRMC1 also binds to PAIR-BP1 (plasminogen activator inhibitor RNA-binding protein-1).[6] 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),[14] which regulates cholesterol synthesis.[15]
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