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{{Infobox gene}}
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<!-- The GNF_Protein_box is automatically maintained by Protein Box Bot.  See Template:PBB_Controls to Stop updates. -->
'''Progesterone receptor membrane component 1''' (abbreviated '''PGRMC1''') is a [[protein]] which [[copurification|co-purifies]] with progesterone binding proteins in the liver and ovary.<ref name="pmid8774719">{{cite journal | vauthors = Meyer C, Schmid R, Scriba PC, Wehling M | title = Purification and partial sequencing of high-affinity progesterone-binding site(s) from porcine liver membranes | journal = European Journal of Biochemistry / FEBS | volume = 239 | issue = 3 | pages = 726–31 | date = Aug 1996 | pmid = 8774719 | doi = 10.1111/j.1432-1033.1996.0726u.x }}</ref><ref name="peluso2008b">{{cite journal | vauthors = Peluso JJ, Romak J, Liu X | title = Progesterone receptor membrane component-1 (PGRMC1) is the mediator of progesterone's antiapoptotic action in spontaneously immortalized granulosa cells as revealed by PGRMC1 small interfering ribonucleic acid treatment and functional analysis of PGRMC1 mutations | journal = Endocrinology | volume = 149 | issue = 2 | pages = 534–43 | date = Feb 2008 | pmid = 17991724 | pmc = 2219306 | doi = 10.1210/en.2007-1050 }}</ref> In humans, the PGRMC1 protein is encoded by the ''PGRMC1'' [[gene]].<ref name="pmid9705155">{{cite journal | vauthors = Gerdes D, Wehling M, Leube B, Falkenstein E | title = Cloning and tissue expression of two putative steroid membrane receptors | journal = Biological Chemistry | volume = 379 | issue = 7 | pages = 907–11 | date = Jul 1998 | pmid = 9705155 | doi = 10.1515/bchm.1998.379.7.907 }}</ref> The [[Sigma-2 receptor]] was recently identified as a protein that binds the PGRMC1 protein.<ref>{{cite journal | vauthors = Xu J, Zeng C, Chu W, Pan F, Rothfuss JM, Zhang F, Tu Z, Zhou D, Zeng D, Vangveravong S, Johnston F, Spitzer D, Chang KC, Hotchkiss RS, Hawkins WG, Wheeler KT, Mach RH | title = Identification of the PGRMC1 protein complex as the putative sigma-2 receptor binding site | journal = Nature Communications | volume = 2 | issue = 2 | pages = 380 | year = 2011 | pmid = 21730960 | doi = 10.1038/ncomms1386 }}</ref>
{{GNF_Protein_box
| image = 
| image_source = 
| PDB =
| Name = Progesterone receptor membrane component 1
| HGNCid = 16090
| Symbol = PGRMC1
| AltSymbols =; HPR6.6; MPR
| OMIM = 300435
| ECnumber = 
| Homologene = 48457
| MGIid = 1858305
| GeneAtlas_image1 = PBB_GE_PGRMC1_201121_s_at_tn.png
| GeneAtlas_image2 = PBB_GE_PGRMC1_201120_s_at_tn.png
| Function = {{GNF_GO|id=GO:0004872 |text = receptor activity}} {{GNF_GO|id=GO:0005496 |text = steroid binding}} {{GNF_GO|id=GO:0008289 |text = lipid binding}} {{GNF_GO|id=GO:0020037 |text = heme binding}} {{GNF_GO|id=GO:0046914 |text = transition metal ion binding}}  
| Component = {{GNF_GO|id=GO:0005783 |text = endoplasmic reticulum}} {{GNF_GO|id=GO:0005792 |text = microsome}} {{GNF_GO|id=GO:0005887 |text = integral to plasma membrane}} {{GNF_GO|id=GO:0009986 |text = cell surface}} {{GNF_GO|id=GO:0016020 |text = membrane}}  
| Process =
| Orthologs = {{GNF_Ortholog_box
    | Hs_EntrezGene = 10857
    | Hs_Ensembl = ENSG00000101856
    | Hs_RefseqProtein = NP_006658
    | Hs_RefseqmRNA = NM_006667
    | Hs_GenLoc_db =
    | Hs_GenLoc_chr = X
    | Hs_GenLoc_start = 118254244
    | Hs_GenLoc_end = 118262457
    | Hs_Uniprot = O00264
    | Mm_EntrezGene = 53328
    | Mm_Ensembl = ENSMUSG00000006373
    | Mm_RefseqmRNA = NM_016783
    | Mm_RefseqProtein = NP_058063
    | Mm_GenLoc_db = 
    | Mm_GenLoc_chr = X
    | Mm_GenLoc_start = 33029670
    | Mm_GenLoc_end = 33037528
    | Mm_Uniprot = Q3TFP8
  }}
}}
'''Progesterone receptor membrane component 1''', also known as '''PGRMC1''', is a human [[gene]].<ref name="entrez">{{cite web | title = Entrez Gene: PGRMC1 progesterone receptor membrane component 1| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10857| accessdate = }}</ref>


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The sole biochemical function of PGRMC1 is [[heme]]-binding.<ref name="crudden2006">{{cite journal | vauthors = Crudden G, Chitti RE, Craven RJ | title = Hpr6 (heme-1 domain protein) regulates the susceptibility of cancer cells to chemotherapeutic drugs | journal = The Journal of Pharmacology and Experimental Therapeutics | volume = 316 | issue = 1 | pages = 448–55 | date = Jan 2006 | pmid = 16234411 | doi = 10.1124/jpet.105.094631 }}</ref><ref name="ghosh2005">{{cite journal | vauthors = Ghosh K, Thompson AM, Goldbeck RA, Shi X, Whitman S, Oh E, Zhiwu Z, Vulpe C, Holman TR | title = Spectroscopic and biochemical characterization of heme binding to yeast Dap1p and mouse PGRMC1p | journal = Biochemistry | volume = 44 | issue = 50 | pages = 16729–36 | date = Dec 2005 | pmid = 16342963 | pmc = 2577039 | doi = 10.1021/bi0511585 }}</ref> PGRMC1 shares key structural motifs with [[cytochrome b5|cytochrome b<sub>5</sub>]].<ref name="pmid12537557">{{cite journal | vauthors = Mifsud W, Bateman A | title = Membrane-bound progesterone receptors contain a cytochrome b5-like ligand-binding domain | journal = Genome Biology | volume = 3 | issue = 12 | pages = RESEARCH0068 | year = 2002 | pmid = 12537557 | pmc = 151170 | doi = 10.1186/gb-2002-3-12-research0068 }}</ref>  PGRMC1 binds and activates P450 proteins,<ref name="hughes2007">{{cite journal | vauthors = Hughes AL, Powell DW, Bard M, Eckstein J, Barbuch R, Link AJ, Espenshade PJ | title = Dap1/PGRMC1 binds and regulates cytochrome P450 enzymes | journal = Cell Metabolism | volume = 5 | issue = 2 | pages = 143–9 | date = Feb 2007 | pmid = 17276356 | doi = 10.1016/j.cmet.2006.12.009 }}</ref><ref name="pmid16279947">{{cite journal | vauthors = Min L, Strushkevich NV, Harnastai IN, Iwamoto H, Gilep AA, Takemori H, Usanov SA, Nonaka Y, Hori H, Vinson GP, Okamoto M | title = Molecular identification of adrenal inner zone antigen as a heme-binding protein | journal = The FEBS Journal | volume = 272 | issue = 22 | pages = 5832–43 | date = Nov 2005 | pmid = 16279947 | doi = 10.1111/j.1742-4658.2005.04977.x }}</ref><ref name="min2004">{{cite journal | vauthors = Min L, Takemori H, Nonaka Y, Katoh Y, Doi J, Horike N, Osamu H, Raza FS, Vinson GP, Okamoto M | title = Characterization of the adrenal-specific antigen IZA (inner zone antigen) and its role in the steroidogenesis | journal = Molecular and Cellular Endocrinology | volume = 215 | issue = 1-2 | pages = 143–8 | date = Feb 2004 | pmid = 15026187 | doi = 10.1016/j.mce.2003.11.025 }}</ref> which are important in drug, hormone and lipid metabolism. PGRMC1 also binds to [[SERBP1|PAIR-BP1]] (plasminogen activator inhibitor RNA-binding protein-1).<ref name="peluso2008b" />  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),<ref name="pmid15782218">{{cite journal | vauthors = Suchanek M, Radzikowska A, Thiele C | title = Photo-leucine and photo-methionine allow identification of protein-protein interactions in living cells | journal = Nature Methods | volume = 2 | issue = 4 | pages = 261–7 | date = Apr 2005 | pmid = 15782218 | doi = 10.1038/nmeth752 }}</ref> which regulates cholesterol synthesis.<ref name="pmid12202038">{{cite journal | vauthors = Yang T, Espenshade PJ, Wright ME, Yabe D, Gong Y, Aebersold R, Goldstein JL, Brown MS | title = Crucial step in cholesterol homeostasis: sterols promote binding of SCAP to INSIG-1, a membrane protein that facilitates retention of SREBPs in ER | journal = Cell | volume = 110 | issue = 4 | pages = 489–500 | date = Aug 2002 | pmid = 12202038 | doi = 10.1016/S0092-8674(02)00872-3 | url = http://linkinghub.elsevier.com/retrieve/pii/S0092867402008723 }}</ref>
{{PBB_Summary
| section_title =  
| summary_text = Progesterone binding protein is a putative steroid membrane receptor. The protein is expressed predominantly in the liver and kidney.<ref name="entrez">{{cite web | title = Entrez Gene: PGRMC1 progesterone receptor membrane component 1| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10857| accessdate = }}</ref>
}}


==References==
== Expression ==
{{reflist|2}}
PGRMC1 is highly expressed in the liver and kidney in humans<ref name="pmid9705155"/> with lower expression in the brain, lung, heart, skeletal muscle and pancreas.<ref name="pmid9705155"/><ref name="krebs2000">{{cite journal | vauthors = Krebs CJ, Jarvis ED, Chan J, Lydon JP, Ogawa S, Pfaff DW | title = A membrane-associated progesterone-binding protein, 25-Dx, is regulated by progesterone in brain regions involved in female reproductive behaviors | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 97 | issue = 23 | pages = 12816–21 | date = Nov 2000 | pmid = 11070092 | pmc = 18847 | doi = 10.1073/pnas.97.23.12816 }}</ref><ref name="selmin1996">{{cite journal | vauthors = Selmin O, Lucier GW, Clark GC, Tritscher AM, Vanden Heuvel JP, Gastel JA, Walker NJ, Sutter TR, Bell DA | title = Isolation and characterization of a novel gene induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin in rat liver | journal = Carcinogenesis | volume = 17 | issue = 12 | pages = 2609–15 | date = Dec 1996 | pmid = 9006096 | doi = 10.1093/carcin/17.12.2609 }}</ref> In rodents, PGRMC1 is found in the liver, lung, kidney and brain.<ref name="krebs2000" /><ref name="selmin1996" /> PGRMC1 is over-expressed in breast tumors and in cancer cell lines from the colon, thyroid, ovary, lung, and cervix.<ref name="pmid15970648">{{cite journal | vauthors = Crudden G, Loesel R, Craven RJ | title = Overexpression of the cytochrome p450 activator hpr6 (heme-1 domain protein/human progesterone receptor) in tumors | journal = Tumour Biology | volume = 26 | issue = 3 | pages = 142–6 | year = 2005 | pmid = 15970648 | doi = 10.1159/000086485 }}</ref><ref name="pmid18319313">{{cite journal | vauthors = Peluso JJ, Liu X, Saunders MM, Claffey KP, Phoenix K | title = Regulation of ovarian cancer cell viability and sensitivity to cisplatin by progesterone receptor membrane component-1 | journal = The Journal of Clinical Endocrinology and Metabolism | volume = 93 | issue = 5 | pages = 1592–9 | date = May 2008 | pmid = 18319313 | doi = 10.1210/jc.2007-2771 }}</ref> [[Microarray]] analyses have detected PGRMC1 expression in colon, lung and breast tumors.<ref name="pmid12932674">{{cite journal | vauthors = Difilippantonio S, Chen Y, Pietas A, Schlüns K, Pacyna-Gengelbach M, Deutschmann N, Padilla-Nash HM, Ried T, Petersen I | title = Gene expression profiles in human non-small and small-cell lung cancers | journal = European Journal of Cancer | volume = 39 | issue = 13 | pages = 1936–47 | date = Sep 2003 | pmid = 12932674 | doi = 10.1016/S0959-8049(03)00419-2 }}</ref><ref name="pmid16467094">{{cite journal | vauthors = Dressman HK, Hans C, Bild A, Olson JA, Rosen E, Marcom PK, Liotcheva VB, Jones EL, Vujaskovic Z, Marks J, Dewhirst MW, West M, Nevins JR, Blackwell K | title = Gene expression profiles of multiple breast cancer phenotypes and response to neoadjuvant chemotherapy | journal = Clinical Cancer Research | volume = 12 | issue = 3 Pt 1 | pages = 819–26 | date = Feb 2006 | pmid = 16467094 | doi = 10.1158/1078-0432.CCR-05-1447 }}</ref><ref name="pmid15753379">{{cite journal | vauthors = Irby RB, Malek RL, Bloom G, Tsai J, Letwin N, Frank BC, Verratti K, Yeatman TJ, Lee NH | title = Iterative microarray and RNA interference-based interrogation of the SRC-induced invasive phenotype | journal = Cancer Research | volume = 65 | issue = 5 | pages = 1814–21 | date = Mar 2005 | pmid = 15753379 | doi = 10.1158/0008-5472.CAN-04-3609 }}</ref>
==Further reading==
{{refbegin | 2}}
{{PBB_Further_reading
| citations =
*{{cite journal  | author=Gerdes D, Wehling M, Leube B, Falkenstein E |title=Cloning and tissue expression of two putative steroid membrane receptors. |journal=Biol. Chem. |volume=379 |issue= 7 |pages= 907-11 |year= 1998 |pmid= 9705155 |doi=  }}
*{{cite journal | author=Bernauer S, Wehling M, Gerdes D, Falkenstein E |title=The human membrane progesterone receptor gene: genomic structure and promoter analysis. |journal=DNA Seq. |volume=12 |issue= 1 |pages= 13-25 |year= 2002 |pmid= 11697142 |doi=  }}
*{{cite journal | author=Strausberg RL, Feingold EA, Grouse LH, ''et al.'' |title=Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=99 |issue= 26 |pages= 16899-903 |year= 2003 |pmid= 12477932 |doi= 10.1073/pnas.242603899 }}
*{{cite journal | author=Shin BK, Wang H, Yim AM, ''et al.'' |title=Global profiling of the cell surface proteome of cancer cells uncovers an abundance of proteins with chaperone function. |journal=J. Biol. Chem. |volume=278 |issue= 9 |pages= 7607-16 |year= 2003 |pmid= 12493773 |doi= 10.1074/jbc.M210455200 }}
*{{cite journal  | author=Hand RA, Craven RJ |title=Hpr6.6 protein mediates cell death from oxidative damage in MCF-7 human breast cancer cells. |journal=J. Cell. Biochem. |volume=90 |issue= 3 |pages= 534-47 |year= 2004 |pmid= 14523988 |doi= 10.1002/jcb.10648 }}
*{{cite journal  | author=Beausoleil SA, Jedrychowski M, Schwartz D, ''et al.'' |title=Large-scale characterization of HeLa cell nuclear phosphoproteins. |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=101 |issue= 33 |pages= 12130-5 |year= 2004 |pmid= 15302935 |doi= 10.1073/pnas.0404720101 }}
*{{cite journal  | author=Gerhard DS, Wagner L, Feingold EA, ''et al.'' |title=The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). |journal=Genome Res. |volume=14 |issue= 10B |pages= 2121-7 |year= 2004 |pmid= 15489334 |doi= 10.1101/gr.2596504 }}
*{{cite journal  | author=Lösel R, Breiter S, Seyfert M, ''et al.'' |title=Classic and non-classic progesterone receptors are both expressed in human spermatozoa. |journal=Horm. Metab. Res. |volume=37 |issue= 1 |pages= 10-4 |year= 2005 |pmid= 15702432 |doi= 10.1055/s-2005-861023 }}
*{{cite journal  | author=Suchanek M, Radzikowska A, Thiele C |title=Photo-leucine and photo-methionine allow identification of protein-protein interactions in living cells. |journal=Nat. Methods |volume=2 |issue= 4 |pages= 261-7 |year= 2005 |pmid= 15782218 |doi= 10.1038/nmeth752 }}
*{{cite journal | author=Crudden G, Loesel R, Craven RJ |title=Overexpression of the cytochrome p450 activator hpr6 (heme-1 domain protein/human progesterone receptor) in tumors. |journal=Tumour Biol. |volume=26 |issue= 3 |pages= 142-6 |year= 2005 |pmid= 15970648 |doi= 10.1159/000086485 }}
*{{cite journal | author=Crudden G, Chitti RE, Craven RJ |title=Hpr6 (heme-1 domain protein) regulates the susceptibility of cancer cells to chemotherapeutic drugs. |journal=J. Pharmacol. Exp. Ther. |volume=316 |issue= 1 |pages= 448-55 |year= 2006 |pmid= 16234411 |doi= 10.1124/jpet.105.094631 }}
*{{cite journal | author=Nousiainen M, Silljé HH, Sauer G, ''et al.'' |title=Phosphoproteome analysis of the human mitotic spindle. |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=103 |issue= 14 |pages= 5391-6 |year= 2006 |pmid= 16565220 |doi= 10.1073/pnas.0507066103 }}
*{{cite journal  | author=Olsen JV, Blagoev B, Gnad F, ''et al.'' |title=Global, in vivo, and site-specific phosphorylation dynamics in signaling networks. |journal=Cell |volume=127 |issue= 3 |pages= 635-48 |year= 2006 |pmid= 17081983 |doi= 10.1016/j.cell.2006.09.026 }}
*{{cite journal | author=Hughes AL, Powell DW, Bard M, ''et al.'' |title=Dap1/PGRMC1 binds and regulates cytochrome P450 enzymes. |journal=Cell Metab. |volume=5 |issue= 2 |pages= 143-9 |year= 2007 |pmid= 17276356 |doi= 10.1016/j.cmet.2006.12.009 }}
*{{cite journal | author=Ewing RM, Chu P, Elisma F, ''et al.'' |title=Large-scale mapping of human protein-protein interactions by mass spectrometry. |journal=Mol. Syst. Biol. |volume=3 |issue= |pages= 89 |year= 2007 |pmid= 17353931 |doi= 10.1038/msb4100134 }}
}}
{{refend}}


{{protein-stub}}
PGRMC1 expression is induced by the non-genotoxic [[carcinogen]] [[polychlorinated dibenzodioxins|2,3,7,8-tetrachlorodibenzo-p-dioxin]] in the rat liver,<ref name="selmin1996" /> but this induction is specific to males.<ref name="pmid15570619">{{cite journal | vauthors = Selmin O, Thorne PA, Blachere FM, Johnson PD, Romagnolo DF | title = Transcriptional activation of the membrane-bound progesterone receptor (mPR) by dioxin, in endocrine-responsive tissues | journal = Molecular Reproduction and Development | volume = 70 | issue = 2 | pages = 166–74 | date = Feb 2005 | pmid = 15570619 | doi = 10.1002/mrd.20090 }}</ref> PGRMC1 is expressed in the ovary and [[corpus luteum]], where its expression is induced by progesterone<ref name="pmid17127748">{{cite journal | vauthors = Nilsson EE, Stanfield J, Skinner MK | title = Interactions between progesterone and tumor necrosis factor-alpha in the regulation of primordial follicle assembly | journal = Reproduction | volume = 132 | issue = 6 | pages = 877–86 | date = Dec 2006 | pmid = 17127748 | doi = 10.1530/REP-06-0045 }}</ref> and during pregnancy,<ref name="pmid16123161">{{cite journal | vauthors = Cai Z, Stocco C | title = Expression and regulation of progestin membrane receptors in the rat corpus luteum | journal = Endocrinology | volume = 146 | issue = 12 | pages = 5522–32 | date = Dec 2005 | pmid = 16123161 | doi = 10.1210/en.2005-0759 }}</ref> respectively. PGRMC1/25-Dx is expressed in various regions of the brain [hypothalamic area, circumventricular organs, ependymal cells of the lateral ventricles, meninges,<ref name="krebs2000" /><ref name="pmid15934950">{{cite journal | vauthors = Meffre D, Delespierre B, Gouézou M, Leclerc P, Vinson GP, Schumacher M, Stein DG, Guennoun R | title = The membrane-associated progesterone-binding protein 25-Dx is expressed in brain regions involved in water homeostasis and is up-regulated after traumatic brain injury | journal = Journal of Neurochemistry | volume = 93 | issue = 5 | pages = 1314–26 | date = Jun 2005 | pmid = 15934950 | doi = 10.1111/j.1471-4159.2005.03127.x }}</ref> including regions known to facilitate [[lordosis]].<ref name="krebs2000" />
{{WikiDoc Sources}}
 
== Binding to heme and cytochrome P450s ==
The PGRMC1 yeast homologue, Dap1 (damage associated protein 1), binds heme<ref name="ghosh2005" /><ref name="Mallory2005">{{cite journal | vauthors = Mallory JC, Crudden G, Johnson BL, Mo C, Pierson CA, Bard M, Craven RJ | title = Dap1p, a heme-binding protein that regulates the cytochrome P450 protein Erg11p/Cyp51p in Saccharomyces cerevisiae | journal = Molecular and Cellular Biology | volume = 25 | issue = 5 | pages = 1669–79 | date = Mar 2005 | pmid = 15713626 | pmc = 549369 | doi = 10.1128/MCB.25.5.1669-1679.2005 }}</ref> through a penta-coordinate mechanism.<ref name="ghosh2005" /><ref name="pmid18031064">{{cite journal | vauthors = Thompson AM, Reddi AR, Shi X, Goldbeck RA, Moënne-Loccoz P, Gibney BR, Holman TR | title = Measurement of the heme affinity for yeast dap1p, and its importance in cellular function | journal = Biochemistry | volume = 46 | issue = 50 | pages = 14629–37 | date = Dec 2007 | pmid = 18031064 | pmc = 2669782 | doi = 10.1021/bi7013739 }}</ref> Yeast cells lacking the DAP1 gene are sensitive to DNA damage,<ref name="hand2003b">{{cite journal | vauthors = Hand RA, Jia N, Bard M, Craven RJ | title = Saccharomyces cerevisiae Dap1p, a novel DNA damage response protein related to the mammalian membrane-associated progesterone receptor | journal = Eukaryotic Cell | volume = 2 | issue = 2 | pages = 306–17 | date = Apr 2003 | pmid = 12684380 | pmc = 154842 | doi = 10.1128/EC.2.2.306-317.2003 | url = http://ec.asm.org/cgi/pmidlookup?view=long&pmid=12684380 }}</ref> and heme-binding is essential for damage resistance.<ref name="Mallory2005"/> Dap1 is also required for a critical step in cholesterol synthesis in which the P450 protein Erg11/Cyp51 removes a methyl group from lanosterol.<ref name="hughes2007"/><ref name="Mallory2005"/><ref name="hand2003b" /><ref name="craven2007">{{cite journal | vauthors = Craven RJ, Mallory JC, Hand RA | title = Regulation of iron homeostasis mediated by the heme-binding protein Dap1 (damage resistance protein 1) via the P450 protein Erg11/Cyp51 | journal = The Journal of Biological Chemistry | volume = 282 | issue = 50 | pages = 36543–51 | date = Dec 2007 | pmid = 17954932 | doi = 10.1074/jbc.M706770200 }}</ref> Erg11/Cyp51 is the target of the azole antifungal drugs.  As a result, yeast cells lacking the DAP1 gene are highly sensitive to antifungal drugs<ref name="hughes2007"/><ref name="Mallory2005"/><ref name="hand2003b" /> This function is conserved between the unrelated fungi ''[[Saccharomyces cerevisiae|S. cerevisiae]]'' and ''[[Schizosaccharomyces pombe|S. pombe]]''.  Dap1 also regulates the metabolism of iron in yeast.<ref name="craven2007" />
 
In yeast and humans, PGRMC1 binds directly to P450 proteins, including [[CYP51A1]], [[CYP3A4]], [[CYP7A1]] and [[CYP21A2]].<ref name="hughes2007"/>  PGRMC1 also activates Cyp21 when the two proteins are co-expressed,<ref name="pmid16279947"/><ref name="min2004" /> indicating that PGRMC1 promotes progesterone turnover.  Just as Dap1 is required for the action of Erg11 in the synthesis of ergosterol in yeast,  PGRMC1 regulates the Cyp51-catalyzed demethylation step in human cholesterol synthesis.<ref name="hughes2007"/>  Thus, PGRMC1 and its homologues bind and regulate P450 proteins, and it has been likened to “a helping hand for P450 proteins”.<ref name="pmid17276348">{{cite journal | vauthors = Debose-Boyd RA | title = A helping hand for cytochrome p450 enzymes | journal = Cell Metabolism | volume = 5 | issue = 2 | pages = 81–3 | date = Feb 2007 | pmid = 17276348 | doi = 10.1016/j.cmet.2007.01.007 }}</ref>
 
== Roles in signaling and apoptosis ==
The yeast PGRMC1 homologue is required for resistance to damage.<ref name="hand2003b" /> PGRMC1 also promotes survival in human cancer cells after treatment with chemotherapy.<ref name="peluso2008b" /><ref name="crudden2006" />  In contrast, PGRMC1 promotes cell death in cancer cells after oxidative damage.<ref name="hand2003a">{{cite journal | vauthors = Hand RA, Craven RJ | title = Hpr6.6 protein mediates cell death from oxidative damage in MCF-7 human breast cancer cells | journal = Journal of Cellular Biochemistry | volume = 90 | issue = 3 | pages = 534–47 | date = Oct 2003 | pmid = 14523988 | doi = 10.1002/jcb.10648 }}</ref> PGRMC1 alters several known survival signaling proteins, including the [[Akt]] [[protein kinase]] and the cell death-associated protein [[IκB]].<ref name="hand2003a" /> Progesterone inhibits apoptosis in immortalized [[granulosa cells]], and this activity requires PGRMC1 and its binding partner, [[SERBP1|PAIR-BP1]] (plasminogen activator inhibitor RNA-binding protein-1).<ref name="peluso2008b" />  However, PAIR-BP1 is not a progesterone binding protein, and the component of the PGRMC1 complex that binds to progesterone is unknown.
 
==See also==
* [[PGRMC]]
* [[PGRMC2]]
* [[Membrane progesterone receptor]]
 
== References ==
{{Reflist|33em}}
 
 
{{Progesterone receptor modulators}}

Latest revision as of 18:23, 15 June 2017

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SpeciesHumanMouse
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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.[1][2] In humans, the PGRMC1 protein is encoded by the PGRMC1 gene.[3] The Sigma-2 receptor was recently identified as a protein that binds the PGRMC1 protein.[4]

The sole biochemical function of PGRMC1 is heme-binding.[5][6] PGRMC1 shares key structural motifs with cytochrome b5.[7] PGRMC1 binds and activates P450 proteins,[8][9][10] which are important in drug, hormone and lipid metabolism. PGRMC1 also binds to PAIR-BP1 (plasminogen activator inhibitor RNA-binding protein-1).[2] 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),[11] which regulates cholesterol synthesis.[12]

Expression

PGRMC1 is highly expressed in the liver and kidney in humans[3] with lower expression in the brain, lung, heart, skeletal muscle and pancreas.[3][13][14] In rodents, PGRMC1 is found in the liver, lung, kidney and brain.[13][14] PGRMC1 is over-expressed in breast tumors and in cancer cell lines from the colon, thyroid, ovary, lung, and cervix.[15][16] Microarray analyses have detected PGRMC1 expression in colon, lung and breast tumors.[17][18][19]

PGRMC1 expression is induced by the non-genotoxic carcinogen 2,3,7,8-tetrachlorodibenzo-p-dioxin in the rat liver,[14] but this induction is specific to males.[20] PGRMC1 is expressed in the ovary and corpus luteum, where its expression is induced by progesterone[21] and during pregnancy,[22] respectively. PGRMC1/25-Dx is expressed in various regions of the brain [hypothalamic area, circumventricular organs, ependymal cells of the lateral ventricles, meninges,[13][23] including regions known to facilitate lordosis.[13]

Binding to heme and cytochrome P450s

The PGRMC1 yeast homologue, Dap1 (damage associated protein 1), binds heme[6][24] through a penta-coordinate mechanism.[6][25] Yeast cells lacking the DAP1 gene are sensitive to DNA damage,[26] and heme-binding is essential for damage resistance.[24] Dap1 is also required for a critical step in cholesterol synthesis in which the P450 protein Erg11/Cyp51 removes a methyl group from lanosterol.[8][24][26][27] Erg11/Cyp51 is the target of the azole antifungal drugs. As a result, yeast cells lacking the DAP1 gene are highly sensitive to antifungal drugs[8][24][26] This function is conserved between the unrelated fungi S. cerevisiae and S. pombe. Dap1 also regulates the metabolism of iron in yeast.[27]

In yeast and humans, PGRMC1 binds directly to P450 proteins, including CYP51A1, CYP3A4, CYP7A1 and CYP21A2.[8] PGRMC1 also activates Cyp21 when the two proteins are co-expressed,[9][10] indicating that PGRMC1 promotes progesterone turnover. Just as Dap1 is required for the action of Erg11 in the synthesis of ergosterol in yeast, PGRMC1 regulates the Cyp51-catalyzed demethylation step in human cholesterol synthesis.[8] Thus, PGRMC1 and its homologues bind and regulate P450 proteins, and it has been likened to “a helping hand for P450 proteins”.[28]

Roles in signaling and apoptosis

The yeast PGRMC1 homologue is required for resistance to damage.[26] PGRMC1 also promotes survival in human cancer cells after treatment with chemotherapy.[2][5] In contrast, PGRMC1 promotes cell death in cancer cells after oxidative damage.[29] PGRMC1 alters several known survival signaling proteins, including the Akt protein kinase and the cell death-associated protein IκB.[29] Progesterone inhibits apoptosis in immortalized granulosa cells, and this activity requires PGRMC1 and its binding partner, PAIR-BP1 (plasminogen activator inhibitor RNA-binding protein-1).[2] However, PAIR-BP1 is not a progesterone binding protein, and the component of the PGRMC1 complex that binds to progesterone is unknown.

See also

References

  1. ↑ Meyer C, Schmid R, Scriba PC, Wehling M (Aug 1996). "Purification and partial sequencing of high-affinity progesterone-binding site(s) from porcine liver membranes". European Journal of Biochemistry / FEBS. 239 (3): 726–31. doi:10.1111/j.1432-1033.1996.0726u.x. PMID 8774719.
  2. ↑ 2.0 2.1 2.2 2.3 Peluso JJ, Romak J, Liu X (Feb 2008). "Progesterone receptor membrane component-1 (PGRMC1) is the mediator of progesterone's antiapoptotic action in spontaneously immortalized granulosa cells as revealed by PGRMC1 small interfering ribonucleic acid treatment and functional analysis of PGRMC1 mutations". Endocrinology. 149 (2): 534–43. doi:10.1210/en.2007-1050. PMC 2219306. PMID 17991724.
  3. ↑ 3.0 3.1 3.2 Gerdes D, Wehling M, Leube B, Falkenstein E (Jul 1998). "Cloning and tissue expression of two putative steroid membrane receptors". Biological Chemistry. 379 (7): 907–11. doi:10.1515/bchm.1998.379.7.907. PMID 9705155.
  4. ↑ Xu J, Zeng C, Chu W, Pan F, Rothfuss JM, Zhang F, Tu Z, Zhou D, Zeng D, Vangveravong S, Johnston F, Spitzer D, Chang KC, Hotchkiss RS, Hawkins WG, Wheeler KT, Mach RH (2011). "Identification of the PGRMC1 protein complex as the putative sigma-2 receptor binding site". Nature Communications. 2 (2): 380. doi:10.1038/ncomms1386. PMID 21730960.
  5. ↑ 5.0 5.1 Crudden G, Chitti RE, Craven RJ (Jan 2006). "Hpr6 (heme-1 domain protein) regulates the susceptibility of cancer cells to chemotherapeutic drugs". The Journal of Pharmacology and Experimental Therapeutics. 316 (1): 448–55. doi:10.1124/jpet.105.094631. PMID 16234411.
  6. ↑ 6.0 6.1 6.2 Ghosh K, Thompson AM, Goldbeck RA, Shi X, Whitman S, Oh E, Zhiwu Z, Vulpe C, Holman TR (Dec 2005). "Spectroscopic and biochemical characterization of heme binding to yeast Dap1p and mouse PGRMC1p". Biochemistry. 44 (50): 16729–36. doi:10.1021/bi0511585. PMC 2577039. PMID 16342963.
  7. ↑ Mifsud W, Bateman A (2002). "Membrane-bound progesterone receptors contain a cytochrome b5-like ligand-binding domain". Genome Biology. 3 (12): RESEARCH0068. doi:10.1186/gb-2002-3-12-research0068. PMC 151170. PMID 12537557.
  8. ↑ 8.0 8.1 8.2 8.3 8.4 Hughes AL, Powell DW, Bard M, Eckstein J, Barbuch R, Link AJ, Espenshade PJ (Feb 2007). "Dap1/PGRMC1 binds and regulates cytochrome P450 enzymes". Cell Metabolism. 5 (2): 143–9. doi:10.1016/j.cmet.2006.12.009. PMID 17276356.
  9. ↑ 9.0 9.1 Min L, Strushkevich NV, Harnastai IN, Iwamoto H, Gilep AA, Takemori H, Usanov SA, Nonaka Y, Hori H, Vinson GP, Okamoto M (Nov 2005). "Molecular identification of adrenal inner zone antigen as a heme-binding protein". The FEBS Journal. 272 (22): 5832–43. doi:10.1111/j.1742-4658.2005.04977.x. PMID 16279947.
  10. ↑ 10.0 10.1 Min L, Takemori H, Nonaka Y, Katoh Y, Doi J, Horike N, Osamu H, Raza FS, Vinson GP, Okamoto M (Feb 2004). "Characterization of the adrenal-specific antigen IZA (inner zone antigen) and its role in the steroidogenesis". Molecular and Cellular Endocrinology. 215 (1–2): 143–8. doi:10.1016/j.mce.2003.11.025. PMID 15026187.
  11. ↑ Suchanek M, Radzikowska A, Thiele C (Apr 2005). "Photo-leucine and photo-methionine allow identification of protein-protein interactions in living cells". Nature Methods. 2 (4): 261–7. doi:10.1038/nmeth752. PMID 15782218.
  12. ↑ Yang T, Espenshade PJ, Wright ME, Yabe D, Gong Y, Aebersold R, Goldstein JL, Brown MS (Aug 2002). "Crucial step in cholesterol homeostasis: sterols promote binding of SCAP to INSIG-1, a membrane protein that facilitates retention of SREBPs in ER". Cell. 110 (4): 489–500. doi:10.1016/S0092-8674(02)00872-3. PMID 12202038.
  13. ↑ 13.0 13.1 13.2 13.3 Krebs CJ, Jarvis ED, Chan J, Lydon JP, Ogawa S, Pfaff DW (Nov 2000). "A membrane-associated progesterone-binding protein, 25-Dx, is regulated by progesterone in brain regions involved in female reproductive behaviors". Proceedings of the National Academy of Sciences of the United States of America. 97 (23): 12816–21. doi:10.1073/pnas.97.23.12816. PMC 18847. PMID 11070092.
  14. ↑ 14.0 14.1 14.2 Selmin O, Lucier GW, Clark GC, Tritscher AM, Vanden Heuvel JP, Gastel JA, Walker NJ, Sutter TR, Bell DA (Dec 1996). "Isolation and characterization of a novel gene induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin in rat liver". Carcinogenesis. 17 (12): 2609–15. doi:10.1093/carcin/17.12.2609. PMID 9006096.
  15. ↑ Crudden G, Loesel R, Craven RJ (2005). "Overexpression of the cytochrome p450 activator hpr6 (heme-1 domain protein/human progesterone receptor) in tumors". Tumour Biology. 26 (3): 142–6. doi:10.1159/000086485. PMID 15970648.
  16. ↑ Peluso JJ, Liu X, Saunders MM, Claffey KP, Phoenix K (May 2008). "Regulation of ovarian cancer cell viability and sensitivity to cisplatin by progesterone receptor membrane component-1". The Journal of Clinical Endocrinology and Metabolism. 93 (5): 1592–9. doi:10.1210/jc.2007-2771. PMID 18319313.
  17. ↑ Difilippantonio S, Chen Y, Pietas A, Schlüns K, Pacyna-Gengelbach M, Deutschmann N, Padilla-Nash HM, Ried T, Petersen I (Sep 2003). "Gene expression profiles in human non-small and small-cell lung cancers". European Journal of Cancer. 39 (13): 1936–47. doi:10.1016/S0959-8049(03)00419-2. PMID 12932674.
  18. ↑ Dressman HK, Hans C, Bild A, Olson JA, Rosen E, Marcom PK, Liotcheva VB, Jones EL, Vujaskovic Z, Marks J, Dewhirst MW, West M, Nevins JR, Blackwell K (Feb 2006). "Gene expression profiles of multiple breast cancer phenotypes and response to neoadjuvant chemotherapy". Clinical Cancer Research. 12 (3 Pt 1): 819–26. doi:10.1158/1078-0432.CCR-05-1447. PMID 16467094.
  19. ↑ Irby RB, Malek RL, Bloom G, Tsai J, Letwin N, Frank BC, Verratti K, Yeatman TJ, Lee NH (Mar 2005). "Iterative microarray and RNA interference-based interrogation of the SRC-induced invasive phenotype". Cancer Research. 65 (5): 1814–21. doi:10.1158/0008-5472.CAN-04-3609. PMID 15753379.
  20. ↑ Selmin O, Thorne PA, Blachere FM, Johnson PD, Romagnolo DF (Feb 2005). "Transcriptional activation of the membrane-bound progesterone receptor (mPR) by dioxin, in endocrine-responsive tissues". Molecular Reproduction and Development. 70 (2): 166–74. doi:10.1002/mrd.20090. PMID 15570619.
  21. ↑ Nilsson EE, Stanfield J, Skinner MK (Dec 2006). "Interactions between progesterone and tumor necrosis factor-alpha in the regulation of primordial follicle assembly". Reproduction. 132 (6): 877–86. doi:10.1530/REP-06-0045. PMID 17127748.
  22. ↑ Cai Z, Stocco C (Dec 2005). "Expression and regulation of progestin membrane receptors in the rat corpus luteum". Endocrinology. 146 (12): 5522–32. doi:10.1210/en.2005-0759. PMID 16123161.
  23. ↑ Meffre D, Delespierre B, Gouézou M, Leclerc P, Vinson GP, Schumacher M, Stein DG, Guennoun R (Jun 2005). "The membrane-associated progesterone-binding protein 25-Dx is expressed in brain regions involved in water homeostasis and is up-regulated after traumatic brain injury". Journal of Neurochemistry. 93 (5): 1314–26. doi:10.1111/j.1471-4159.2005.03127.x. PMID 15934950.
  24. ↑ 24.0 24.1 24.2 24.3 Mallory JC, Crudden G, Johnson BL, Mo C, Pierson CA, Bard M, Craven RJ (Mar 2005). "Dap1p, a heme-binding protein that regulates the cytochrome P450 protein Erg11p/Cyp51p in Saccharomyces cerevisiae". Molecular and Cellular Biology. 25 (5): 1669–79. doi:10.1128/MCB.25.5.1669-1679.2005. PMC 549369. PMID 15713626.
  25. ↑ Thompson AM, Reddi AR, Shi X, Goldbeck RA, Moënne-Loccoz P, Gibney BR, Holman TR (Dec 2007). "Measurement of the heme affinity for yeast dap1p, and its importance in cellular function". Biochemistry. 46 (50): 14629–37. doi:10.1021/bi7013739. PMC 2669782. PMID 18031064.
  26. ↑ 26.0 26.1 26.2 26.3 Hand RA, Jia N, Bard M, Craven RJ (Apr 2003). "Saccharomyces cerevisiae Dap1p, a novel DNA damage response protein related to the mammalian membrane-associated progesterone receptor". Eukaryotic Cell. 2 (2): 306–17. doi:10.1128/EC.2.2.306-317.2003. PMC 154842. PMID 12684380.
  27. ↑ 27.0 27.1 Craven RJ, Mallory JC, Hand RA (Dec 2007). "Regulation of iron homeostasis mediated by the heme-binding protein Dap1 (damage resistance protein 1) via the P450 protein Erg11/Cyp51". The Journal of Biological Chemistry. 282 (50): 36543–51. doi:10.1074/jbc.M706770200. PMID 17954932.
  28. ↑ Debose-Boyd RA (Feb 2007). "A helping hand for cytochrome p450 enzymes". Cell Metabolism. 5 (2): 81–3. doi:10.1016/j.cmet.2007.01.007. PMID 17276348.
  29. ↑ 29.0 29.1 Hand RA, Craven RJ (Oct 2003). "Hpr6.6 protein mediates cell death from oxidative damage in MCF-7 human breast cancer cells". Journal of Cellular Biochemistry. 90 (3): 534–47. doi:10.1002/jcb.10648. PMID 14523988.


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