Section 1: Gene Identifiers
Primary Gene Identifiers
| Database | Identifier | Description |
|---|
| HGNC | HGNC:3467 | Approved symbol: ESR1 |
| Ensembl | ENSG00000091831 | Ensembl gene ID |
| NCBI Entrez | 2099 | Entrez Gene ID |
| OMIM | 133430 | Gene/locus MIM number |
Gene Information
| Attribute | Value |
|---|
| Approved Name | Estrogen receptor 1 |
| Locus Type | Gene with protein product |
| Locus Group | Protein-coding gene |
| Status | Approved |
| Gene Group | Estrogen receptors |
| Previous Symbols | ESR |
| Aliases | ER, NR3A1, Era, ER-alpha, ESRA, ESTRR |
Genomic Location
| Attribute | Value |
|---|
| Chromosome | 6 |
| Cytogenetic Band | 6q25.1-q25.2 |
| Start Position | 151,651,284 (GRCh38) |
| End Position | 152,129,619 (GRCh38) |
| Strand | + (plus/forward) |
| Genome Assembly | GRCh38/hg38 |
| Gene Span | ~478 kb |
Section 2: Transcript Identifiers
Ensembl Transcripts (Total: 18)
| Transcript ID | Biotype | Start | End | Strand |
|---|
| ENST00000206249 | protein_coding | 151,807,682 | 152,103,274 | + |
| ENST00000338799 | protein_coding | 151,804,431 | 152,099,053 | + |
| ENST00000404742 | protein_coding | 151,690,496 | 151,808,166 | + |
| ENST00000406599 | protein_coding | 151,807,679 | 152,098,978 | + |
| ENST00000415488 | protein_coding | 151,880,657 | 152,061,059 | + |
| ENST00000427531 | protein_coding | 151,809,107 | 152,129,619 | + |
| ENST00000440973 | protein_coding | 151,690,496 | 152,103,274 | + |
| ENST00000443427 | protein_coding | 151,807,319 | 152,103,274 | + |
| ENST00000446550 | protein_coding | 151,807,196 | 151,808,259 | + |
| ENST00000456483 | protein_coding | 151,807,679 | 152,098,978 | + |
| ENST00000473497 | protein_coding_CDS_not_defined | 151,656,691 | 151,807,857 | + |
| ENST00000482101 | protein_coding_CDS_not_defined | 151,944,172 | 151,984,165 | + |
| ENST00000488573 | protein_coding_CDS_not_defined | 151,808,105 | 151,811,278 | + |
| ENST00000641399 | protein_coding_CDS_not_defined | 151,936,130 | 152,118,399 | + |
| ENST00000858333 | protein_coding | 151,690,530 | 152,100,579 | + |
| ENST00000858334 | protein_coding | 151,807,168 | 152,101,388 | + |
| ENST00000858335 | protein_coding | 151,807,663 | 152,099,792 | + |
| ENST00000947759 | protein_coding | 151,651,284 | 152,099,200 | + |
RefSeq Transcripts - Human mRNAs (NM_ accessions)
| RefSeq ID | Symbol | Type | Status | MANE Select |
|---|
| NM_000125 | ESR1 | mRNA | REVIEWED | Yes ✓ |
| NM_001122740 | ESR1 | mRNA | REVIEWED | No |
| NM_001122741 | ESR1 | mRNA | REVIEWED | No |
| NM_001122742 | ESR1 | mRNA | REVIEWED | No |
| NM_001291230 | ESR1 | mRNA | REVIEWED | No |
| NM_001291241 | ESR1 | mRNA | REVIEWED | No |
| NM_001328100 | ESR1 | mRNA | REVIEWED | No |
| NM_001385568 | ESR1 | mRNA | REVIEWED | No |
| NM_001385569 | ESR1 | mRNA | REVIEWED | No |
| NM_001385570 | ESR1 | mRNA | REVIEWED | No |
| NM_001385571 | ESR1 | mRNA | REVIEWED | No |
| NM_001385572 | ESR1 | mRNA | REVIEWED | No |
CCDS Identifiers (Total: 2)
Canonical Transcript Exon Structure (ENST00000206249)
Total Exons: 8
| Exon ID | Start | End | Length |
|---|
| ENSE00001877305 | 151,807,682 | 151,808,364 | 683 bp |
| ENSE00003705805 | 151,842,597 | 151,842,787 | 191 bp |
| ENSE00003721187 | 151,880,655 | 151,880,771 | 117 bp |
| ENSE00002178920 | 151,944,173 | 151,944,508 | 336 bp |
| ENSE00000813753 | 152,011,656 | 152,011,794 | 139 bp |
| ENSE00003743537 | 152,060,991 | 152,061,124 | 134 bp |
| ENSE00003736522 | 152,094,385 | 152,094,568 | 184 bp |
| ENSE00001128501 | 152,098,732 | 152,103,274 | 4,543 bp |
Section 3: Protein Identifiers
UniProt Accessions
| Accession | Name | Status | Length | Mass |
|---|
| P03372 | Estrogen receptor | Reviewed (Swiss-Prot) ✓ | 595 aa | 66,216 Da |
Alternative Names:
- ER-alpha
- Estradiol receptor
- Nuclear receptor subfamily 3 group A member 1
RefSeq Protein Accessions (NP_ IDs)
| RefSeq ID | Symbol | Status | Canonical |
|---|
| NP_000116 | ESR1 | REVIEWED | Yes ✓ |
| NP_001116212 | ESR1 | REVIEWED | No |
| NP_001116213 | ESR1 | REVIEWED | No |
| NP_001116214 | ESR1 | REVIEWED | No |
| NP_001278159 | ESR1 | REVIEWED | No |
| NP_001278170 | ESR1 | REVIEWED | No |
| NP_001315029 | ESR1 | REVIEWED | No |
| NP_001372497 | ESR1 | REVIEWED | No |
| NP_001372498 | ESR1 | REVIEWED | No |
| NP_001372499 | ESR1 | REVIEWED | No |
| NP_001372500 | ESR1 | REVIEWED | No |
| NP_001372501 | ESR1 | REVIEWED | No |
Protein Domains and Families (Total: 10)
| InterPro ID | Name | Type |
|---|
| IPR000536 | Nucl_hrmn_rcpt_lig-bd | Domain |
| IPR001292 | Estr_rcpt | Family |
| IPR001628 | Znf_hrmn_rcpt | Domain |
| IPR001723 | Nuclear_hrmn_rcpt | Family |
| IPR013088 | Znf_NHR/GATA | Homologous_superfamily |
| IPR024178 | Est_rcpt/est-rel_rcp | Family |
| IPR024736 | Oestrogen-typ_rcpt_final_C_dom | Domain |
| IPR035500 | NHR-like_dom_sf | Homologous_superfamily |
| IPR046944 | Estr_rcpt_N | Domain |
| IPR050200 | Nuclear_hormone_rcpt_NR3 | Family |
Section 4: Structure Identifiers
Experimental Structures
Total PDB Structures: 475
ESR1 is one of the most extensively structurally characterized proteins in the human proteome.
Representative PDB Structures (Top 50 by Resolution)
| PDB ID | Resolution | Method | Description |
|---|
| 5DXE | 1.50 Å | X-ray | LBD with Stapled Peptide SRC2-P4 and Estradiol |
| 5UFX | 1.55 Å | X-ray | LBD in Complex with OP1074 |
| 5UFW | 1.58 Å | X-ray | LBD in Complex with OP1154 |
| 5KCT | 1.60 Å | X-ray | LBD Y537S with OBHS-N derivative |
| 1XPC | 1.60 Å | X-ray | LBD with compound 19 |
| 3UUD | 1.60 Å | X-ray | LBD Y537S with estradiol |
| 5N10 | 1.60 Å | X-ray | Binary bivalent supramolecular platform |
| 5W9D | 1.65 Å | X-ray | LBD C381S,C417S,C530S with Endoxifen |
| 6CBZ | 1.65 Å | X-ray | LBD Y537S with Estradiol and GRIP Peptide |
| 3CBP | 1.42 Å | X-ray | SET7/9-ER-Sinefungin complex |
| 1XP6 | 1.70 Å | X-ray | LBD with compound 16 |
| 2QXS | 1.70 Å | X-ray | LBD 536S mutant with Raloxifene |
| 5KCC | 2.39 Å | X-ray | LBD Y537S with OBHS-N |
| 1XP9 | 1.80 Å | X-ray | LBD with compound 18 |
| 1XP1 | 1.80 Å | X-ray | LBD with compound 15 |
| 4MGA | 1.80 Å | X-ray | LBD Y537S with 4-tert-octylphenol |
| 2B1Z | 1.78 Å | X-ray | LBD with 17methyl-17alpha-dihydroequilenin |
| 5KCW | 1.91 Å | X-ray | LBD Y537S with N-trifluoroethyl OBHS-N |
| 3ERT | 1.90 Å | X-ray | LBD with 4-hydroxytamoxifen |
| 1SJ0 | 1.90 Å | X-ray | LBD with antagonist ligand |
| 6CHZ | 1.68 Å | X-ray | LBD Y537S with antagonist H3B-9224 |
| 6CHW | 1.89 Å | X-ray | LBD Y537S covalently bound to H3B-5942 |
| 1L2I | 1.95 Å | X-ray | LBD with THC and GRIP1 peptide |
| 1X7R | 2.00 Å | X-ray | LBD with Genistein |
| 2OUZ | 2.00 Å | X-ray | LBD with Lasofoxifene |
Methods Distribution:
- X-ray Diffraction: ~470 structures
- Solution NMR: ~5 structures (1HCP, 2LLO, 2LLQ, 5T0X)
Predicted Structures
| Database | ID | Metrics |
|---|
| AlphaFold | P03372 | pLDDT: 67.14, Sequence Length: 4637, Fraction Very High Confidence: 0.45 |
Section 5: Cross-Species Orthologs
| Organism | Ensembl Gene ID | Symbol | Biotype |
|---|
| Mouse (Mus musculus) | ENSMUSG00000019768 | Esr1 | protein_coding |
| Rat (Rattus norvegicus) | ENSRNOG00000019358 | Esr1 | protein_coding |
| Zebrafish (Danio rerio) | ENSDARG00000004111 | esr1 | protein_coding |
| Fruit fly (Drosophila melanogaster) | FBGN0035849 | ERR | protein_coding |
| Worm (C. elegans) | No direct ortholog | - | - |
| Yeast (S. cerevisiae) | No ortholog | - | - |
Section 6: Clinical Variants & AI Predictions
ClinVar Variant Summary
Total Variants: 217
| Classification | Count |
|---|
| Pathogenic | 2 |
| Likely Pathogenic | 0 |
| Uncertain Significance (VUS) | ~25 |
| Likely Benign | ~80 |
| Benign | ~90 |
| Risk Factor | 2 |
| Conflicting | ~10 |
Pathogenic/Likely Pathogenic Variants
| ClinVar ID | HGVS Notation | Variant Type | Classification |
|---|
| 16590 | NM_000125.4:c.1339_1340delinsGC (p.Cys447Ala) | Indel | Pathogenic |
| 16592 | NM_000125.4:c.469C>T (p.Arg157Ter) | SNV | Pathogenic |
Risk Factor Variants
| ClinVar ID | HGVS Notation | Variant Type |
|---|
| 16594 | NM_000125.4:c.453-397T>C | SNV |
| 208354 | NM_000125.4:c.908A>G (p.Lys303Arg) | SNV |
SpliceAI Predictions
Total Splice-Altering Predictions: 4,481
Top 50 High-Impact Splice Variants (Score ≥ 0.5)
| Variant | Effect | Delta Score |
|---|
| 6:151690665:G:GG | donor_gain | 1.00 |
| 6:151690663:AAG:A | donor_loss | 0.98 |
| 6:151690664:AG:A | donor_loss | 0.98 |
| 6:151690665:G:A | donor_loss | 0.98 |
| 6:151690666:TAG:T | donor_loss | 0.98 |
| 6:151690668:GGTA:G | donor_loss | 0.94 |
| 6:151690595:TCC:T | donor_gain | 0.92 |
| 6:151690663:AA:A | donor_gain | 0.90 |
| 6:151690667:AG:A | donor_loss | 0.86 |
| 6:151690660:TTCAA:T | donor_gain | 0.84 |
| 6:151699907:A:G | donor_gain | 0.83 |
| 6:151690669:G:C | donor_loss | 0.81 |
| 6:151690596:C:A | donor_gain | 0.79 |
| 6:151690649:A:AG | donor_gain | 0.77 |
| 6:151699959:GA:G | donor_gain | 0.73 |
| 6:151690662:CAA:C | donor_gain | 0.67 |
| 6:151690863:AC:A | donor_gain | 0.66 |
| 6:151697479:A:AG | donor_gain | 0.63 |
| 6:151690666:T:C | donor_gain | 0.62 |
| 6:151697494:G:GT | donor_gain | 0.62 |
AlphaMissense Predictions
Total Missense Predictions: 3,910
Predicted Pathogenic Missense Variants (Top 50)
| Variant | Protein Change | Pathogenicity Score | Classification |
|---|
| 6:151807935:A:T | K8I | 0.841 | likely_pathogenic |
| 6:151807921:G:A | M3I | 0.733 | likely_pathogenic |
| 6:151807921:G:C | M3I | 0.733 | likely_pathogenic |
| 6:151807921:G:T | M3I | 0.733 | likely_pathogenic |
| 6:151807936:A:C | K8N | 0.698 | likely_pathogenic |
| 6:151807936:A:T | K8N | 0.698 | likely_pathogenic |
| 6:151807943:G:T | G11W | 0.745 | likely_pathogenic |
| 6:151807943:G:A | G11R | 0.595 | likely_pathogenic |
| 6:151807943:G:C | G11R | 0.595 | likely_pathogenic |
Ambiguous Variants (Top examples)
| Variant | Protein Change | Pathogenicity Score | Classification |
|---|
| 6:151807920:T:A | M3K | 0.514 | ambiguous |
| 6:151807917:C:T | T2I | 0.490 | ambiguous |
| 6:151807920:T:G | M3R | 0.481 | ambiguous |
| 6:151807956:T:C | L15P | 0.373 | ambiguous |
Section 7: Biological Pathways & Gene Ontology
Reactome Pathways (Total: 17)
| Pathway ID | Pathway Name | Disease Pathway |
|---|
| R-HSA-8939211 | ESR-mediated signaling | No |
| R-HSA-9018519 | Estrogen-dependent gene expression | No |
| R-HSA-9009391 | Extra-nuclear estrogen signaling | No |
| R-HSA-383280 | Nuclear Receptor transcription pathway | No |
| R-HSA-8931987 | RUNX1 regulates estrogen receptor mediated transcription | No |
| R-HSA-1257604 | PIP3 activates AKT signaling | No |
| R-HSA-1251985 | Nuclear signaling by ERBB4 | No |
| R-HSA-2219530 | Constitutive Signaling by Aberrant PI3K in Cancer | Yes |
| R-HSA-6811558 | PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling | No |
| R-HSA-4090294 | SUMOylation of intracellular receptors | No |
| R-HSA-5689896 | Ovarian tumor domain proteases | No |
| R-HSA-8866910 | TFAP2 family regulates transcription of growth factors | No |
| R-HSA-8939256 | RUNX1 regulates transcription of genes involved in WNT signaling | No |
| R-HSA-8939902 | Regulation of RUNX2 expression and activity | No |
| R-HSA-9841251 | Mitochondrial unfolded protein response (UPRmt) | No |
| R-HSA-9927418 | Developmental Lineage of Mammary Gland Luminal Epithelial Cells | No |
| R-HSA-9927426 | Developmental Lineage of Mammary Gland Alveolar Cells | No |
Gene Ontology Annotations (Total: 80)
Biological Process (Count: ~45)
| GO ID | Term Name |
|---|
| GO:0030520 | estrogen receptor signaling pathway |
| GO:0030518 | nuclear receptor-mediated steroid hormone signaling pathway |
| GO:0043401 | steroid hormone receptor signaling pathway |
| GO:0043627 | response to estrogen |
| GO:0071391 | cellular response to estrogen stimulus |
| GO:0071392 | cellular response to estradiol stimulus |
| GO:0032355 | response to estradiol |
| GO:0045944 | positive regulation of transcription by RNA polymerase II |
| GO:0045893 | positive regulation of DNA-templated transcription |
| GO:0000122 | negative regulation of transcription by RNA polymerase II |
| GO:0006357 | regulation of transcription by RNA polymerase II |
| GO:0006355 | regulation of DNA-templated transcription |
| GO:0006338 | chromatin remodeling |
| GO:0007165 | signal transduction |
| GO:0060065 | uterus development |
| GO:0060068 | vagina development |
| GO:0060749 | mammary gland alveolus development |
| GO:0060745 | mammary gland branching involved in pregnancy |
| GO:0060750 | epithelial cell proliferation involved in mammary gland duct elongation |
| GO:0048863 | stem cell differentiation |
Molecular Function (Count: ~25)
| GO ID | Term Name |
|---|
| GO:0030284 | nuclear estrogen receptor activity |
| GO:0004879 | nuclear receptor activity |
| GO:0034056 | estrogen response element binding |
| GO:0003700 | DNA-binding transcription factor activity |
| GO:0001228 | DNA-binding transcription activator activity, RNA polymerase II-specific |
| GO:0000981 | DNA-binding transcription factor activity, RNA polymerase II-specific |
| GO:0000978 | RNA polymerase II cis-regulatory region sequence-specific DNA binding |
| GO:1990837 | sequence-specific double-stranded DNA binding |
| GO:0003682 | chromatin binding |
| GO:0005496 | steroid binding |
| GO:0030331 | nuclear estrogen receptor binding |
| GO:0001221 | transcription coregulator binding |
| GO:0001222 | transcription corepressor binding |
| GO:0001223 | transcription coactivator binding |
| GO:0042802 | identical protein binding |
| GO:0005516 | calmodulin binding |
| GO:0008013 | beta-catenin binding |
| GO:0008270 | zinc ion binding |
| GO:0071889 | 14-3-3 protein binding |
| GO:0019899 | enzyme binding |
Cellular Component (Count: ~15)
| GO ID | Term Name |
|---|
| GO:0005634 | nucleus |
| GO:0005654 | nucleoplasm |
| GO:0000785 | chromatin |
| GO:0000791 | euchromatin |
| GO:0005667 | transcription regulator complex |
| GO:0005737 | cytoplasm |
| GO:0005829 | cytosol |
| GO:0005886 | plasma membrane |
| GO:0005794 | Golgi apparatus |
| GO:0016020 | membrane |
| GO:0032991 | protein-containing complex |
Section 8: Protein Interactions & Molecular Networks
STRING Protein-Protein Interactions
Total Interactions: 8,546
Top 50 Highest-Confidence Interacting Proteins
| UniProt ID | Protein Name | Score |
|---|
| Q9Y6Q9 | NCOA3 (SRC-3) | 997 |
| P03372 | ESR1 (homodimer) | 997 |
| P12931 | SRC | 996 |
| P05412 | JUN (c-Jun) | 995 |
| P38398 | BRCA1 | 995 |
| P01100 | FOS (c-Fos) | 994 |
| P08069 | IGF1R | 994 |
| Q03135 | CAV1 | 992 |
| P55317 | FOXA1 | 990 |
| P07900 | HSP90AA1 | 988 |
| P48552 | NRIP1 (RIP140) | 988 |
| O75376 | NCOR1 | 987 |
| Q13547 | HDAC1 | 987 |
| Q15788 | NCOA1 (SRC-1) | 986 |
| Q14344 | GNA13 | 985 |
| P08238 | HSP90AB1 | 983 |
| P27482 | CALML3 | 981 |
| P08047 | SP1 | 979 |
| P10275 | AR (Androgen receptor) | 979 |
| Q15596 | NCOA2 (SRC-2) | 979 |
| Q8TD86 | DDX5 | 979 |
| Q92841 | DDX17 | 979 |
| Q96GE6 | MYBBP1A | 979 |
| Q9NZT1 | CALML5 | 979 |
| P00533 | EGFR | 974 |
| P04637 | TP53 | 974 |
| P24385 | CCND1 | 972 |
| P27986 | PIK3R1 | 971 |
| P04626 | ERBB2 (HER2) | 966 |
| P01343 | PRL (Prolactin) | 964 |
| P29353 | SHC1 | 962 |
| P35222 | CTNNB1 (beta-catenin) | 952 |
Protein Structural Similarity (ESM2 Embeddings)
Total Similar Proteins: 82
| UniProt ID | Top Similarity | Avg Similarity |
|---|
| B3SV56 | 1.0000 | 0.9930 |
| Q07917 | 1.0000 | 0.9935 |
| Q08E02 | 1.0000 | 0.9931 |
| P70662 | 1.0000 | 0.9823 |
| Q86U70 | 1.0000 | 0.9822 |
| A0P8Z4 | 0.9999 | 0.9943 |
| O15350 | 0.9999 | 0.9879 |
| O93511 | 0.9999 | 0.9928 |
| P06211 | 0.9999 | 0.9953 |
| P19785 | 0.9999 | 0.9953 |
Protein Sequence Similarity (DIAMOND)
Total Similar Proteins: 148
| UniProt ID | Top Identity | BitScore |
|---|
| P04150 | 99.4% | 1506 |
| P06401 | 98.6% | 1692 |
| P08235 | 98.7% | 1781 |
| Q4JM28 | 99.6% | 1812 |
| Q3YC04 | 99.2% | 1795 |
Section 9: Transcription Factor Regulatory Data
ESR1 is a ligand-activated transcription factor and a member of the nuclear receptor superfamily.
JASPAR Binding Motif Profiles (Total: 4)
| Matrix ID | Collection | Class | Family |
|---|
| MA0112.1 | CORE | Nuclear receptors with C4 zinc fingers | Steroid hormone receptors (NR3) |
| MA0112.2 | CORE | Nuclear receptors with C4 zinc fingers | Steroid hormone receptors (NR3) |
| MA0112.3 | CORE | Nuclear receptors with C4 zinc fingers | Steroid hormone receptors (NR3) |
| MA0112.4 | CORE | Nuclear receptors with C4 zinc fingers | Steroid hormone receptors (NR3) |
Downstream Target Genes (CollecTRI)
Total Target Genes: 840+
Top 50 ESR1 Target Genes with Regulatory Direction
| Target Gene | Regulation | Confidence |
|---|
| CCND1 | Activation | High |
| BCL2 | Activation | High |
| BIRC5 (Survivin) | Activation | High |
| MYC | Unknown | High |
| TFF1 (pS2) | Activation | High |
| GREB1 | Activation | High |
| BRCA1 | Unknown | High |
| BRCA2 | Unknown | High |
| CDKN1A (p21) | Activation | High |
| CDKN1B (p27) | Repression | High |
| CDKN1C (p57) | Repression | High |
| CDC25A | Activation | High |
| CYP19A1 (Aromatase) | Activation | High |
| CAV1 | Repression | High |
| CTSD (Cathepsin D) | Unknown | High |
| AMH | Activation | High |
| AICDA | Activation | High |
| BMP2 | Activation | High |
| AURKA | Unknown | High |
| AP1 | Activation | High |
| CXCL8 (IL-8) | Activation | High |
| CRH | Repression | High |
| CRHBP | Activation | High |
| BTG2 | Repression | High |
| CD24 | Repression | High |
| CDH1 (E-cadherin) | Unknown | High |
| DACH1 | Activation | High |
| DCT | Activation | High |
| CYP1A1 | Repression | High |
| CYP2C19 | Repression | High |
Upstream Regulators of ESR1
| Regulator | Regulation | Confidence |
|---|
| AHR | Unknown | High |
| AP1 | Unknown | High |
| BRCA1 | Activation | - |
| BARD1 | Activation | - |
| DNMT1 | Unknown | High |
| E2F4 | Unknown | High |
| CEBPD | Repression | - |
| AR | Repression | Low |
| AIP | Repression | - |
SIGNOR Signaling Interactions (Total: 141+)
Key Regulators of ESR1
| Entity | Effect | Mechanism |
|---|
| 17beta-estradiol | Up-regulates | Chemical activation |
| EGFR | Up-regulates | Phosphorylation |
| ERBB2 | Up-regulates | Phosphorylation |
| MAPK1/3 (ERK1/2) | Up-regulates | Phosphorylation |
| AKT | Up-regulates | Phosphorylation |
| PRKACA (PKA) | Up-regulates | Phosphorylation |
| GSK3B | Up-regulates | Phosphorylation |
| ABL1 | Up-regulates | Phosphorylation |
| CDK2 | Up-regulates | Phosphorylation |
| BRCA1 | Down-regulates | Activity |
| DUSP22 | Down-regulates | Dephosphorylation |
Drug Modulators
| Drug | Effect | Mechanism |
|---|
| Tamoxifen | Down-regulates | Chemical inhibition |
| Fulvestrant | Down-regulates | Chemical inhibition |
| Raloxifene | Down-regulates | Chemical inhibition |
| Estradiol | Up-regulates | Chemical activation |
| Estrone | Up-regulates | Chemical activation |
| Estriol | Up-regulates | Chemical activation |
| Tibolone | Up-regulates | Chemical activation |
| Diethylstilbestrol | Up-regulates | Chemical activation |
| Bisphenol A | Up-regulates | Chemical activation |
Section 10: Drug & Pharmacology Data
ChEMBL Target Information
| Target ID | Target Type |
|---|
| CHEMBL206 | SINGLE PROTEIN |
| CHEMBL2093866 | PROTEIN FAMILY |
FDA-Approved Drugs Targeting ESR1 (Phase 4)
Total Approved: 95
Selective Estrogen Receptor Modulators (SERMs)
| ChEMBL ID | Drug Name | Mechanism |
|---|
| CHEMBL83 | TAMOXIFEN | Antagonist |
| CHEMBL786 | TAMOXIFEN CITRATE | Antagonist |
| CHEMBL81 | RALOXIFENE | Antagonist |
| CHEMBL1116 | RALOXIFENE HYDROCHLORIDE | Antagonist |
| CHEMBL46740 | BAZEDOXIFENE | Antagonist |
| CHEMBL328190 | LASOFOXIFENE | Antagonist |
| CHEMBL2355051 | CLOMIPHENE | Mixed agonist/antagonist |
Selective Estrogen Receptor Degraders (SERDs)
| ChEMBL ID | Drug Name | Mechanism |
|---|
| CHEMBL1358 | FULVESTRANT | Pure antagonist/degrader |
| CHEMBL4297509 | ELACESTRANT | Oral SERD |
Estrogens (Agonists)
| ChEMBL ID | Drug Name |
|---|
| CHEMBL135 | ESTRADIOL |
| CHEMBL691 | ETHINYL ESTRADIOL |
| CHEMBL1405 | ESTRONE |
| CHEMBL193482 | ESTRIOL |
| CHEMBL1511 | ESTRADIOL VALERATE |
| CHEMBL1200430 | ESTRADIOL ACETATE |
| CHEMBL1200973 | ESTRADIOL CYPIONATE |
| CHEMBL1201151 | MESTRANOL |
| CHEMBL411 | DIETHYLSTILBESTROL |
| CHEMBL1018 | DIENESTROL |
| CHEMBL9225 | HEXESTROL |
| CHEMBL1230314 | ESTETROL ANHYDROUS |
| CHEMBL141305 | CYCLOFENIL |
| CHEMBL1201165 | QUINESTROL |
| CHEMBL1200761 | CHLOROTRIANISENE |
Progestins/Hormonal Agents
| ChEMBL ID | Drug Name |
|---|
| CHEMBL1162 | NORETHINDRONE |
| CHEMBL1389 | LEVONORGESTREL |
| CHEMBL1531 | ETONOGESTREL |
| CHEMBL1533 | DESOGESTREL |
| CHEMBL1387 | NORETHYNODREL |
| CHEMBL1200624 | ETHYNODIOL DIACETATE |
| CHEMBL1276308 | MIFEPRISTONE |
| CHEMBL260538 | ULIPRISTAL ACETATE |
| CHEMBL1479 | DANAZOL |
| CHEMBL1393 | SPIRONOLACTONE |
Other Approved Drugs with ESR1 Activity
| ChEMBL ID | Drug Name | Primary Use |
|---|
| CHEMBL1756 | ESTRAMUSTINE PHOSPHATE | Prostate cancer |
| CHEMBL1023 | BEXAROTENE | Cutaneous T-cell lymphoma |
| CHEMBL1289601 | LENVATINIB | Thyroid cancer |
| CHEMBL3545185 | SELINEXOR | Multiple myeloma |
| CHEMBL408513 | BELINOSTAT | Peripheral T-cell lymphoma |
Drugs in Clinical Development (Phase 3)
| ChEMBL ID | Drug Name | Mechanism |
|---|
| CHEMBL1093458 | ENDOXIFEN | Active tamoxifen metabolite |
| CHEMBL489 | AFIMOXIFENE | Topical SERM |
| CHEMBL4475463 | AMCENESTRANT | Oral SERD |
| CHEMBL4650316 | GIREDESTRANT | Oral SERD |
| CHEMBL4650365 | CAMIZESTRANT | Oral SERD |
| CHEMBL5095183 | IMLUNESTRANT | Oral SERD |
| CHEMBL5095210 | VEPDEGESTRANT | PROTAC degrader |
PharmGKB Information
| Attribute | Value |
|---|
| PharmGKB ID | PA156 |
| VIP Gene | Yes |
| CPIC Guideline | No |
Section 11: Expression Profiles
Bgee Expression Summary
| Attribute | Value |
|---|
| Expression Breadth | Ubiquitous |
| Total Present Calls | 216 |
| Total Absent Calls | 70 |
| Total Conditions | 286 |
| Max Expression Score | 97.49 |
| Average Expression Score | 68.11 |
| Gold Quality Count | 255 |
Top 30 Expressing Tissues (Ranked by Score)
| Rank | Tissue (UBERON ID) | Expression Score | Quality |
|---|
| 1 | Oviduct epithelium (UBERON:0004804) | 97.49 | Gold |
| 2 | Cervix epithelium (UBERON:0004801) | 96.89 | Gold |
| 3 | Mammalian vulva (UBERON:0000997) | 96.85 | Gold |
| 4 | Endometrium (UBERON:0001295) | 96.64 | Gold |
| 5 | Uterine cervix (UBERON:0000002) | 96.04 | Gold |
| 6 | Cervix squamous epithelium (UBERON:0006922) | 95.98 | Gold |
| 7 | Fallopian tube (UBERON:0003889) | 95.94 | Gold |
| 8 | Endocervix (UBERON:0000458) | 95.16 | Gold |
| 9 | Right uterine tube (UBERON:0001302) | 94.72 | Gold |
| 10 | Uterus (UBERON:0000995) | 94.53 | Gold |
| 11 | Ectocervix (UBERON:0012249) | 94.34 | Gold |
| 12 | Epithelium of mammary gland (UBERON:0003244) | 94.10 | Gold |
| 13 | Mammary duct (UBERON:0001765) | 93.85 | Gold |
| 14 | Body of uterus (UBERON:0009853) | 93.61 | Gold |
| 15 | Vagina (UBERON:0000996) | 93.35 | Gold |
| 16 | Caput epididymis (UBERON:0004358) | 92.43 | Gold |
| 17 | Germinal epithelium of ovary (UBERON:0001304) | 91.68 | Gold |
| 18 | Calcaneal tendon (UBERON:0003701) | 91.13 | Gold |
| 19 | Urethra (UBERON:0000057) | 90.87 | Gold |
| 20 | Myometrium (UBERON:0001296) | 90.85 | Gold |
| 21 | Tibia (UBERON:0000979) | 90.56 | Gold |
| 22 | Mammary gland (UBERON:0001911) | 89.63 | Gold |
| 23 | Thoracic mammary gland (UBERON:0005200) | 89.62 | Gold |
| 24 | Left uterine tube (UBERON:0001303) | 89.21 | Gold |
| 25 | Adult organism (UBERON:0007023) | 88.52 | Gold |
| 26 | Female reproductive system (UBERON:0000474) | 88.11 | Gold |
| 27 | Nipple (UBERON:0002030) | 86.20 | Gold |
| 28 | Tendon (UBERON:0000043) | 85.42 | Gold |
| 29 | Decidua (UBERON:0002450) | 83.72 | Gold |
| 30 | Right lobe of liver (UBERON:0001114) | 83.44 | Gold |
Expression Pattern: ESR1 shows highest expression in female reproductive tissues, particularly the oviduct, cervix, and uterus. Also notably expressed in mammary tissue, bone, and various other
tissues.
Section 12: Disease Associations
Mendelian Disease Associations (GenCC)
| Disease | OMIM ID | Classification | Inheritance | Submitter |
|---|
| Estrogen Resistance Syndrome | OMIM:615363 | Limited | Autosomal Recessive | Ambry Genetics |
| Estrogen Resistance Syndrome | OMIM:615363 | Limited | Autosomal Recessive | Labcorp Genetics |
| Estrogen Resistance Syndrome | ORPHANET:785 | Supportive | Autosomal Recessive | Orphanet |
Human Phenotype Ontology Associations (Total: 43)
Reproductive System Phenotypes
| HPO ID | Phenotype |
|---|
| HP:0000013 | Hypoplasia of the uterus |
| HP:0000147 | Polycystic ovaries |
| HP:0000786 | Primary amenorrhea |
| HP:0008675 | Enlarged polycystic ovaries |
| HP:0003187 | Breast hypoplasia |
| HP:0100783 | Breast aplasia |
| HP:0008187 | Absence of secondary sex characteristics |
| HP:0008197 | Absence of pubertal development |
| HP:0100133 | Abnormality of the pubic hair |
Skeletal/Growth Phenotypes
| HPO ID | Phenotype |
|---|
| HP:0000098 | Tall stature |
| HP:0001548 | Overgrowth |
| HP:0000938 | Osteopenia |
| HP:0000939 | Osteoporosis |
| HP:0002663 | Delayed epiphyseal ossification |
| HP:0002750 | Delayed skeletal maturation |
| HP:0003799 | Marked delay in bone age |
| HP:0010639 | Elevated alkaline phosphatase of bone origin |
| HP:0031428 | Increased circulating osteocalcin level |
Endocrine Phenotypes
| HPO ID | Phenotype |
|---|
| HP:0000823 | Delayed puberty |
| HP:0000834 | Abnormality of the adrenal glands |
| HP:0000837 | Increased circulating gonadotropin level |
| HP:0000842 | Hyperinsulinemia |
| HP:0001952 | Glucose intolerance |
| HP:0040270 | Impaired glucose tolerance |
| HP:0003117 | Abnormal circulating hormone concentration |
| HP:0025134 | Increased serum estradiol |
| HP:0030087 | Abnormal circulating testosterone concentration |
Cancer Association
| HPO ID | Phenotype |
|---|
| HP:0003002 | Breast carcinoma |
GWAS Associations (Total: 126)
Top 30 GWAS Traits by Significance
| Trait | Study ID | P-value | Mapped Gene/Locus |
|---|
| Heel bone mineral density | GCST006433_1457 | 0 (highly significant) | ESR1 |
| Heel bone mineral density | GCST006433_1458 | 2×10⁻²¹² | ESR1 |
| Heel bone mineral density | GCST006288_764 | 2×10⁻¹¹⁹ | ESR1 |
| Heel bone mineral density | GCST006979_282 | 1×10⁻¹³⁸ | ESR1 |
| Heel bone mineral density | GCST006288_689 | 1×10⁻⁵⁴ | ESR1 |
| Breast cancer | GCST004988_274 | 5×10⁻⁵⁴ | CCDC170-ESR1 |
| Height | GCST008839_58 | 9×10⁻⁴⁶ | ESR1 |
| Breast cancer | GCST004988_524 | 3×10⁻⁴¹ | CCDC170 |
| Heel bone mineral density | GCST006288_13 | 7×10⁻³⁵ | ESR1 |
| Pulse pressure | GCST007269_227 | 6×10⁻³² | ESR1 |
| Breast cancer (ER-negative) | GCST005076_9 | 3×10⁻³¹ | CCDC170 |
| Birth weight | GCST008362_80 | 1×10⁻²⁸ | ESR1 |
| Pulse pressure | GCST007096_133 | 8×10⁻²⁸ | ESR1 |
| Breast cancer | GCST003845_10 | 4×10⁻²⁸ | CCDC170-ESR1 |
| Breast cancer | GCST004988_756 | 1×10⁻²⁶ | ESR1 |
| Height | GCST002647_136 | 8×10⁻²⁴ | ESR1 |
| Breast cancer | GCST001937_9 | 2×10⁻²¹ | CCDC170 |
| Heel bone mineral density | GCST006288_690 | 5×10⁻²¹ | ESR1 |
| Birth weight | GCST005146_42 | 6×10⁻²⁰ | ESR1 |
| Fracture | GCST006423_4 | 5×10⁻¹⁹ | ESR1 |
| Breast cancer (ER-negative) | GCST005076_2 | 2×10⁻¹⁸ | ESR1 |
| Breast cancer (ER-negative) | GCST003842_6 | 8×10⁻¹⁸ | CCDC170-ESR1 |
| Pulse pressure | GCST004278_19 | 2×10⁻¹⁸ | ESR1 |
| Height | GCST000817_5 | 1×10⁻¹⁷ | ESR1 |
| Breast size | GCST006655_4 | 2×10⁻¹⁶ | CCDC170-ESR1 |
| Heel bone mineral density | GCST006288_547 | 4×10⁻¹⁶ | ESR1 |
| Breast cancer | GCST000343_1 | 2×10⁻¹⁵ | CCDC170-ESR1 |
| Breast cancer (ER-negative) | GCST003842_5 | 9×10⁻¹⁵ | CCDC170 |
| Body fat distribution (trunk fat ratio) | GCST007294_104 | 1×10⁻¹⁴ | ESR1 |
| Breast size | GCST006655_8 | 2×10⁻¹⁴ | CCDC170-ESR1 |
Major GWAS Trait Categories:
- Bone mineral density/Osteoporosis - Most significant associations
- Breast cancer - Multiple highly significant loci
- Height - Consistent associations
- Cardiovascular traits - Blood pressure, pulse pressure
- Reproductive traits - Age at menarche, breast size
SUMMARY STATISTICS
| Category | Count |
|---|
| Total database cross-references | ~250,000+ |
| Ensembl transcripts | 18 |
| RefSeq mRNA transcripts | 12 |
| PDB structures | 475 |
| ClinVar variants | 217 |
| SpliceAI predictions | 4,481 |
| AlphaMissense predictions | 3,910 |
| GO annotations | 80 |
| Reactome pathways | 17 |
| STRING interactions | 8,546 |
| Transcription factor targets | 840+ |
| Approved drugs | 95 |
| GWAS associations | 126 |
| HPO phenotypes | 43 |
This reference document was generated using BioBTree cross-database mapping. Data sources include HGNC, Ensembl, NCBI, UniProt, PDB, ClinVar, PharmGKB, Reactome, GO, STRING, ChEMBL, Bgee, GWAS
Catalog, and others.