PGR
Progesterone receptor
Also known as: NR3C3, PR, PRGR_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P06401
- Gene
- PGR
- Ensembl
- ENSG00000082175
- Chromosome
- 11
- Canonical length
- 933 aa
- Protein class
- Cancer-related genes, FDA approved drug targets, Human disease related genes, Nuclear receptors, Predicted intracellular proteins, Transcription factors, Transporters
OverviewNCBI Gene
This gene encodes a member of the steroid receptor superfamily. The encoded protein mediates the physiological effects of progesterone, which plays a central role in reproductive events associated with the establishment and maintenance of pregnancy. This gene uses two distinct promotors and translation start sites in the first exon to produce several transcript variants, both protein coding and non-protein coding. Two of the isoforms (A and B) are identical except for an additional 165 amino acids found in the N-terminus of isoform B and mediate their own response genes and physiologic effects with little overlap. [provided by RefSeq, Sep 2015]
Canonical amino-acid sequenceUniProt
933 residues, UniProt reviewed canonical sequence.
>P06401|PGR
1 MTELKAKGPR APHVAGGPPS PEVGSPLLCR PAAGPFPGSQ TSDTLPEVSA IPISLDGLLF
61 PRPCQGQDPS DEKTQDQQSL SDVEGAYSRA EATRGAGGSS SSPPEKDSGL LDSVLDTLLA
121 PSGPGQSQPS PPACEVTSSW CLFGPELPED PPAAPATQRV LSPLMSRSGC KVGDSSGTAA
181 AHKVLPRGLS PARQLLLPAS ESPHWSGAPV KPSPQAAAVE VEEEDGSESE ESAGPLLKGK
241 PRALGGAAAG GGAAAVPPGA AAGGVALVPK EDSRFSAPRV ALVEQDAPMA PGRSPLATTV
301 MDFIHVPILP LNHALLAART RQLLEDESYD GGAGAASAFA PPRSSPCASS TPVAVGDFPD
361 CAYPPDAEPK DDAYPLYSDF QPPALKIKEE EEGAEASARS PRSYLVAGAN PAAFPDFPLG
421 PPPPLPPRAT PSRPGEAAVT AAPASASVSS ASSSGSTLEC ILYKAEGAPP QQGPFAPPPC
481 KAPGASGCLL PRDGLPSTSA SAAAAGAAPA LYPALGLNGL PQLGYQAAVL KEGLPQVYPP
541 YLNYLRPDSE ASQSPQYSFE SLPQKICLIC GDEASGCHYG VLTCGSCKVF FKRAMEGQHN
601 YLCAGRNDCI VDKIRRKNCP ACRLRKCCQA GMVLGGRKFK KFNKVRVVRA LDAVALPQPV
661 GVPNESQALS QRFTFSPGQD IQLIPPLINL LMSIEPDVIY AGHDNTKPDT SSSLLTSLNQ
721 LGERQLLSVV KWSKSLPGFR NLHIDDQITL IQYSWMSLMV FGLGWRSYKH VSGQMLYFAP
781 DLILNEQRMK ESSFYSLCLT MWQIPQEFVK LQVSQEEFLC MKVLLLLNTI PLEGLRSQTQ
841 FEEMRSSYIR ELIKAIGLRQ KGVVSSSQRF YQLTKLLDNL HDLVKQLHLY CLNTFIQSRA
901 LSVEFPEMMS EVIAAQLPKI LAGMVKPLLF HKKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PGR can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Other membrane
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.56
- Highest tissue expression
- 97 nTPM
Expression across tissuesHPA
Tissue
- endometrium: 97 nTPM
- smooth muscle: 73 nTPM
- cervix: 60 nTPM
- fallopian tube: 32 nTPM
- ovary: 16 nTPM
- vagina: 10 nTPM
Single-cell type
- gonadotrophs: 350 nCPM
- cardiomyocytes: 349 nCPM
- fallopian tube ciliated cells: 335 nCPM
- endometrial stromal cells: 319 nCPM
- fallopian secretory cells: 220 nCPM
- epididymal efferent duct absorptive cells: 184 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- hypothalamus: 19 nTPM
- medulla oblongata: 3.5 nTPM
- midbrain: 3.5 nTPM
- pons: 3.4 nTPM
- spinal cord: 3.1 nTPM
- thalamus: 2.8 nTPM
ReferencesPubMed · IEDB
Publications for PGR from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
1 publication
- Antibodies against progesterone receptor from chick oviduct. Cross-reactivity with mammalian progesterone receptors.
1982 · Eur J Biochem · RCR 1.2 · 51 citations
Reference: B cellIEDB
1 publication
- Peptide microarray-based characterization of antibody responses to host proteins after bacille Calmette-Guérin vaccination.
2017 · Int J Infect Dis · RCR 0.7 · 19 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.47
- gnomAD pLI
- 0.05
- gnomAD missense Z
- 1.28
- DepMap mean gene effect
- 0.03
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell-cell signaling
- glandular epithelial cell maturation
- lung alveolus development
- maintenance of protein location in nucleus
- negative regulation of gene expression
- nuclear receptor-mediated steroid hormone signaling pathway
- ovulation from ovarian follicle
- paracrine signaling
- positive regulation of gene expression
- positive regulation of transcription by RNA polymerase II
- progesterone receptor signaling pathway
- regulation of DNA-templated transcription
- regulation of epithelial cell proliferation
- regulation of transcription by RNA polymerase II
- signal transduction
- tertiary branching involved in mammary gland duct morphogenesis
Molecular functions
- ATPase binding
- DNA binding
- DNA-binding transcription activator activity, RNA polymerase II-specific
- DNA-binding transcription factor activity, RNA polymerase II-specific
- enzyme binding
- estrogen response element binding
- identical protein binding
- nuclear receptor activity
- nuclear steroid receptor activity
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
- signaling receptor binding
- steroid binding
- transcription coactivator binding
- zinc ion binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Nuclear hormone receptor, ligand-binding domain
- Zinc finger, nuclear hormone receptor-type
- Nuclear hormone receptor
- Zinc finger, NHR/GATA-type
- Nuclear hormone receptor-like domain superfamily
- Nuclear hormone receptor family NR3 subfamily
- Ligand-binding domain of nuclear hormone receptor
- Double treble clef zinc finger, C4 type
- Progesterone receptor
- Progesterone receptor
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PGR in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PGR as an antibody target. Whether an autoantibody or antibody against PGR could matter depends on whether native PGR is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PGR is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label PGR as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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