Biomarker: estrogen receptor

Histology type: endometrioid endometrial carcinoma

Country: Spain

Region: Lleida

Followed up time :

Subgroup 1 name : EEC

Subgroup 1 number: 57

Subgroup 2 name: SC

Subgroup 2 number: 31

Conclusion: We propose an internally and externally validated 9-protein biomarker signature to predict the histologic type of EC (EEC or SC) by IHC. The results also suggest that mixed EEC-SC is molecularly ambiguous.

Sample type : tissue

Sample method: immunohistochemistry (IHC)

Expression pattern : estrogen receptor ≤ 50

Expression elevation: IHC staining was graded semiquantitatively by considering the percentage and intensity of the staining. A histologic score (Hs) was obtained from each sample, and values ranged from 0 (no immunoreaction) to 300 (maximum immunoreactivity). The score was obtained by applying the following formula, Hs = 1 × (% light staining) + 2 × (% moderate staining) + 3 × (% strong staining). Scoring was independently performed by 2 of the authors (M. S. and O. M.). Interobserver agreement between these 2 authors was assessed by Cohen κ concordance measure, considering all the intervals in Hs range (0-300) at each 10 units, and with Pearson linear correlation.

Funtion Uniprot: Binds to an ERR-alpha response element (ERRE) containing a single consensus half-site, 5'-TNAAGGTCA-3'. Can bind to the medium-chain acyl coenzyme A dehydrogenase (MCAD) response element NRRE-1 and may act as an important regulator of MCAD promoter. Binds to the C1 region of the lactoferrin gene promoter. Requires dimerization and the coactivator, PGC-1A, for full activity. The ERRalpha/PGC1alpha complex is a regulator of energy metabolism. Induces the expression of PERM1 in the skeletal muscle.

UniProt ID: P11474

UniProt Link: https://www.uniprot.org/uniprotkb/P11474/entry

Biological function from UniProt: #Transcription #Transcription regulation

Molecular function from UniProt:

Subcellular UniProt: #Cytoplasm #Nucleus

Alternative name from UniProt:

Recommended name: Steroid hormone receptor ERR1

Gene name from HGNC: ESRRA (ERR1, ERRa, ERRalpha, ESRL1, NR3B1)

HPA class: Nuclear receptors Transcription factors

AlphaFold DB: P11474

AlphaFold Link: https://alphafold.ebi.ac.uk/entry/P11474

Induction: Induced by PGC1alpha in a number of specific cell types including heart, kidney and muscle.

HPA link: https://www.proteinatlas.org/ENSG00000173153-ESRRA

Tissue specificity RNA from HPA: Tissue enhanced (skeletal muscle)

Tissue expression from HPA: General cytoplasmic expression.

Single cell type specificity Cell type enhanced (Hepatocytes, Proximal enterocytes, Distal enterocytes)

Immune cell specificity: Low immune cell specificity

Subcellular summary HPA Located in Nucleoplasm, Nucleoli fibrillar center, Microtubules, Cytokinetic bridge (Single cell variability, CCD Protein)

Cancer prognostic summary HPA Prognostic marker in renal cancer (favorable)

Pathology link: https://www.proteinatlas.org/ENSG00000173153-ESRRA/pathology

Pathology endo: https://www.proteinatlas.org/ENSG00000173153-ESRRA/pathology/endometrial+cancer

OMIM: 601998

OMIM link2: https://www.omim.org/entry/601998

HGNC ID: HGNC:3471

HGNC link: https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:3471