| 1999 |
EYA4 encodes a 640 amino acid protein containing a highly conserved C-terminal domain of 271 amino acids (Eya homologous region) that mediates developmentally important protein-protein interactions, as established by characterization of the human and mouse gene. |
cDNA cloning, sequence analysis, domain characterization |
Human molecular genetics |
Medium |
9887327
|
| 2001 |
EYA4 is the causative gene for postlingual progressive autosomal dominant hearing loss at the DFNA10 locus; mutations creating premature stop codons in two unrelated families established haploinsufficiency as the disease mechanism. |
Candidate gene sequencing, mutation identification, co-segregation analysis in two families |
Human molecular genetics |
High |
11159937
|
| 2004 |
EYA4 Eya homologous region (Eya4HR) interacts with SIX1 (demonstrated by yeast two-hybrid), but not with DACH1. Eya4HR localizes to the cytoplasm and is translocated to the nucleus upon co-expression with SIX1. Mutant truncating alleles are not translated, consistent with haploinsufficiency as the mechanism for DFNA10. |
Yeast two-hybrid, alpha-galactosidase activity assay, immunofluorescence, dual Eya-containing constructs |
Journal of the Association for Research in Otolaryngology : JARO |
Medium |
15492887
|
| 2005 |
EYA4 deletion causes dilated cardiomyopathy in addition to sensorineural hearing loss; eya4 morpholino knockdown in zebrafish produced heart failure. EYA4 peptides associated with SNHL-only mutations bound wild-type EYA4 and SIX proteins, whereas the cardiomyopathy-associated short peptide (193 aa) did not, indicating that SIX protein interaction is required for cardiac function. |
Zebrafish morpholino knockdown, biochemical interaction assays (co-immunoprecipitation), truncated peptide binding studies |
Nature genetics |
High |
15735644
|
| 2008 |
EYA4 regulates Na+/K+-ATPase (specifically the atp1b2b subunit) in zebrafish; eya4 morphant fish had reduced atp1b2b levels, reduced hair cells, and heart failure. Morpholino knockdown of atp1b2b recapitulated eya4 deficiency phenotypes, and atp1b2b overexpression rescued eya4 morphant phenotypes, placing atp1b2b downstream of eya4 in sensory and cardiac development. |
Zebrafish morpholino knockdown, genetic epistasis (rescue by overexpression), hair cell counts, sensory response measurement |
Development (Cambridge, England) |
High |
18799547
|
| 2009 |
EYA4 physically interacts with SIX3 (co-immunoprecipitation) and is recruited to the nucleus by SIX3. EYA4 cooperates functionally with SIX3 as a transcriptional coactivator (reporter gene assay), suggesting a role in forebrain development. |
Co-immunoprecipitation, confocal microscopy localization, luciferase reporter assay |
Human mutation |
Medium |
19606496
|
| 2015 |
EYA4 overexpression in cardiac tissue induces hypertrophy via regulation of p27kip1 expression; chromatin immunoprecipitation and luciferase assays confirmed that EYA4 binds the p27 promoter and suppresses p27 expression. The downstream signaling involves casein kinase-2α and histone deacetylase 2 (HDAC2) phosphorylation. The truncating mutation E193 acts in an opposing manner, promoting dilated cardiomyopathy. |
Transgenic mice (cardiac-specific overexpression), luciferase reporter assay, chromatin immunoprecipitation, MRI/hemodynamic analysis, in vitro expression studies |
Circulation. Cardiovascular genetics |
High |
26499333
|
| 2016 |
miR-431 directly targets Eya4 mRNA; luciferase reporter assay and western blotting confirmed that miR-431 inhibits Eya4 translation. Overexpression of miR-431 in transgenic mice led to reduced EYA4 protein in cochleae, decreased spiral ganglion neuron density, and hearing loss. |
Luciferase reporter assay, western blotting, transgenic mice, ABR measurement, SGN counting |
Biochimica et biophysica acta |
Medium |
27545760
|
| 2018 |
EYA4 suppresses HCC cell growth and invasion by antagonizing NF-κB activity: EYA4 serine/threonine phosphatase activity inhibits phosphorylation and ubiquitination of IκBα, blocks nuclear translocation and transactivation of p65, thereby suppressing RAP1 transcription driven by NF-κB. Calyculin A (phosphatase inhibitor) abolished EYA4's suppression of NF-κB, confirming phosphatase-dependence. |
Stable transfection, xenograft, chromatin immunoprecipitation, immunofluorescence, cellular ubiquitination assay, NF-κB reporter, pharmacological inhibition |
Cancer communications (London, England) |
High |
29764501
|
| 2018 |
EYA4 knockdown in ESCC cells increases migration and invasion; EYA4 overexpression promotes epithelial phenotype and reduces TGF-β1-induced EMT by reducing phosphorylation of Akt and GSK-3β, leading to inactivation of slug. TGF-β1 decreases EYA4 expression through DNMT3A-mediated DNA methylation. |
shRNA knockdown, overexpression, migration/invasion assays, western blotting for pAkt/pGSK3β/slug, treatment with 5-aza-dC/TSA |
Cancer science |
Medium |
29660222
|
| 2019 |
EYA4 dephosphorylates β-catenin at Ser552 (serine/threonine phosphatase activity), reducing nuclear translocation of β-catenin and thereby suppressing β-catenin/LEF1-driven transcription of MYCBP. EYA4 KO increased MYCBP; siRNA of MYCBP in EYA4-overexpressing cells rescued proliferation and G2/M arrest phenotypes. |
EYA4 overexpression/KO in HCC cell lines, siRNA rescue, western blotting for phospho-β-catenin, qRT-PCR, nuclear fractionation |
Cancer science |
Medium |
31385398
|
| 2020 |
EYA4 truncating mutations in the EYA-HR domain result in absence of protein expression (confirmed in mammalian COS7 cells), consistent with haploinsufficiency. Missense mutant p.Glu369Asp shows normal expression and nuclear translocation in presence of SIX1. Minigene assays confirmed that synonymous and splice-site variants cause exon skipping leading to frameshifts. |
Transient expression in COS7 cells, confocal microscopy, minigene splicing assays in NIH3T3 cells, in silico splicing analysis |
Scientific reports |
Medium |
32277154
|
| 2021 |
EYA4 promotes glioma cell proliferation by directly suppressing expression of p27Kip1, and SIX1 is required for EYA4 to suppress p27Kip1. |
EYA4 overexpression, cell viability/BrdU assay, flow cytometry, gene expression analysis |
Cellular physiology and biochemistry |
Low |
30231237
|
| 2023 |
EYA4 serine/threonine phosphatase domain prevents replication-associated DNA damage and is required for replication fork progression. EYA4 depletion causes spontaneous replication stress (ATR pathway activation, γH2AX accumulation, sensitivity to hydroxyurea, endoreplication/polyploidy). EYA4 overexpression promotes breast cancer cell proliferation, migration, and metastasis. |
EYA4 KD/OE in breast cancer cells and xenografts, γH2AX staining, ATR pathway markers, hydroxyurea sensitivity, DNA fiber assay (replication fork), phosphatase domain mutant |
Molecular cancer |
Medium |
37777742
|
| 2024 |
EYA4 (and EYA1) are tyrosine phosphatases that dephosphorylate PLK1 at pY445 during G2 phase of the cell cycle. This dephosphorylation is required for centrosome maturation, PLK1 localization to centrosomes, and polo-box domain (PBD)-dependent interactions between PLK1 and PLK1-activation complexes. Depletion or chemical inhibition of EYA phosphatase activity reduces PLK1 activation, causing mitotic defects and cell death. |
Co-immunoprecipitation, phosphatase substrate assay, molecular dynamics simulation, EYA4/EYA1 depletion, chemical inhibition, immunofluorescence of centrosome maturation, mitosis assays |
Nature communications |
High |
38360978
|
| 2024 |
EYA4 tyrosine phosphatase activity dephosphorylates RAD51 at Tyr315, which regulates RAD51 localization, presynaptic filament formation, foci formation, and homologous recombination (HR) at DNA double-strand breaks. DNA binding stimulates EYA4 phosphatase activity. EYA4 depletion decreases ssDNA accumulation after DNA damage and impairs HR; overexpression promotes RAD51 dephosphorylation and nucleoprotein filament formation. |
In vitro phosphatase assay, HR reporter assay, RAD51 foci formation, DNA fiber assay, ssDNA accumulation measurement, EYA4 KD/OE |
Nucleic acids research |
High |
38084915
|
| 2023 |
TRIM69 E3 ligase promotes EYA4 polyubiquitylation and proteasomal turnover. ERK2 directly binds EYA4 at Leu512/514 (MAPK docking groove D-site) and phosphorylates EYA4 at Ser37, which is required for TRIM69-mediated EYA4 polyubiquitylation. Loss of EYA4 via this axis enables β-catenin/ID2 cascade activation promoting PDAC proliferation. |
Co-immunoprecipitation, GST pulldown, in vitro protein kinase assay, cycloheximide pulse-chase, cellular ubiquitination assay, chromatin immunoprecipitation, luciferase reporter, immunofluorescence |
Journal of Cancer |
High |
36741265
|
| 2024 |
EYA4 interacts with histone H2AX directly and facilitates DNA double-strand break repair via DDR pathway activation, reducing osteosarcoma sensitivity to doxorubicin. |
Co-immunoprecipitation (EYA4-H2AX interaction), EYA4 KD/OE, in vitro and in vivo doxorubicin sensitivity assays, γH2AX measurement |
Biochemical pharmacology |
Low |
38876260
|
| 2026 |
EYA4 interacts with transcription factor SIX2 to promote transcription of p21 (CDKN1A), thereby accelerating cellular senescence. This transcriptional activation function is independent of EYA4 phosphatase activity (shown using phosphatase-deficient mutants). EYA4-SIX2-mediated p21 upregulation is p53-dependent. |
EYA4 KD, co-immunoprecipitation (EYA4-SIX2), reporter/expression assays for p21, phosphatase-deficient mutant, p53 KO epistasis, replicative and stress-induced senescence assays |
Advanced biotechnology |
Medium |
41991886
|
| 2025 |
EYA4 and EYA1 promote PLK1 activation and cell survival in neuroblastoma and glioblastoma; combined chemical inhibition of EYA phosphatase and PLK1 kinase produces synergistic cell death. Mechanism involves decreased PLK1 activity and RAD51 foci formation, mitotic arrest. NuRD complex and SOX9 expression levels correlate with combination sensitivity. |
Chemical inhibition (EYA inhibitors + PLK1 inhibitors), cancer cell line viability assays, PLK1 activity measurement, RAD51 foci, mitotic arrest quantification, multi-omic correlation |
bioRxivpreprint |
Low |
|