| 2010 |
RNF220 is a RING domain E3 ubiquitin ligase that binds E2 ubiquitin-conjugating enzymes and mediates auto-ubiquitination; it interacts with Sin3B (identified by yeast two-hybrid and confirmed in vitro and in vivo) and promotes Sin3B ubiquitination and proteasomal degradation, thereby regulating the Sin3/HDAC corepressor complex. |
Yeast two-hybrid, in vitro binding assay, co-immunoprecipitation, ubiquitination assay, proteasome inhibitor rescue |
Biochemical and biophysical research communications |
Medium |
20170641
|
| 2014 |
RNF220 physically interacts with β-catenin and with USP7; the RNF220/USP7 complex deubiquitinates β-catenin and stabilizes it, thereby enhancing canonical Wnt signaling. RNF220 itself is phosphorylated/destabilized by GSK3β, placing RNF220/USP7 as a positive feedback regulator of Wnt signaling. |
Co-immunoprecipitation, ubiquitination assay, knockdown in colon cancer cells, Wnt reporter assay, Western blot stability assay |
Molecular and cellular biology |
High |
25266658
|
| 2018 |
RNF220 promotes K63-linked polyubiquitination and nuclear export of Gli transcription factors, thereby fine-tuning Shh/Gli gradients during ventral spinal cord patterning. RNF220 interacts with ZC4H2, and together they target Dbx1/2 and Nkx2.2 for degradation to specify ventral progenitor domains. RNF220-null mice show loss of the p2 progenitor domain. |
Co-immunoprecipitation, ubiquitination assay, RNF220-null mouse phenotypic analysis, chick spinal cord knockdown, immunofluorescence |
Development (Cambridge, England) |
High |
30177510
|
| 2020 |
ZC4H2 is required for the stability of RNF220 protein and for proper Gli ubiquitination and Shh signaling in vivo; ZC4H2 and RNF220 knockouts phenocopy each other in spinal cord patterning in mouse and zebrafish. |
ZC4H2 and RNF220 knockout mice and zebrafish, Western blot protein stability assay, Gli ubiquitination assay, immunofluorescence |
Journal of molecular cell biology |
High |
31336385
|
| 2020 |
The RNF220/ZC4H2 complex monoubiquitylates Phox2a and Phox2b transcription factors, and this monoubiquitylation is required for full transcriptional activity of Phox2a/Phox2b during locus coeruleus noradrenergic neuron development. |
Co-immunoprecipitation, ubiquitination assay, Rnf220 and Zc4h2 KO mice, transcriptional reporter assay, immunofluorescence |
Development (Cambridge, England) |
High |
32094113
|
| 2020 |
RNF220 interacts with STAT1 and mediates K63-linked polyubiquitination of STAT1 at residue K110, which promotes the interaction between STAT1 and JAK1 kinase, enhancing STAT1 phosphorylation and activation of IFN-stimulated gene expression. Rnf220 deficiency reduces IFN signaling and increases susceptibility to bacterial and viral infection in mice. |
Co-immunoprecipitation, in vitro ubiquitination assay with K110 site-directed mutant, Rnf220 KO mice, ISG expression analysis, infection models |
Cell death and differentiation |
High |
32814877
|
| 2020 |
RNF220 is required for proliferation of cerebellar granule neuron progenitors and promotes Shh signaling by targeting EED (a PRC2 component) for ubiquitination/degradation, thereby altering epigenetic marks (H3K27me3) on Shh target gene promoters. RNF220 haploinsufficiency in a Ptch1+/− background reduces spontaneous medulloblastoma occurrence. |
RNF220 conditional KO mice, ubiquitination assay, ChIP for histone marks, Daoy cell knockdown, xenograft, Western blot |
Development (Cambridge, England) |
High |
32376680
|
| 2020 |
RNF220-polyubiquitinated Gli proteins accumulate in cytoskeletal aggresomes in an HDAC6-dependent manner and interact with p62 for autophagy-mediated degradation. RNF220 also inhibits Gli2 and Gli3 processing both in vitro and in vivo. |
Co-immunoprecipitation, ubiquitination assay, aggresome fractionation, HDAC6 knockdown, autophagy inhibitor assay, in vitro/in vivo Gli processing assay |
Biochemical and biophysical research communications |
Medium |
33895473
|
| 2020 |
Loss of RNF220 or ZC4H2 in neural stem cells inhibits proliferation and promotes neuronal differentiation, coinciding with upregulation of Cend1 (a cell-cycle exit regulator) and downstream changes in CyclinD1, Notch1, Hes1, p53, and p21; RNF220-KO NSCs show G0/G1 arrest. |
RNF220 and ZC4H2 KO mouse-derived NSCs, cell proliferation assay, RNA-seq, Western blot, cell cycle analysis |
Cells |
Medium |
32630355
|
| 2020 |
RNF220 promotes stabilization of Cyclin D1 protein via USP22; overexpression of RNF220 increases Cyclin D1 protein levels and decreases its ubiquitylation in the nucleus, accelerating G1-to-S phase transition in AML cells. RNF220 cannot stabilize Cyclin D1 without increased USP22 expression. |
RNF220 overexpression/knockdown in AML cells, co-immunoprecipitation, ubiquitination assay, Western blot, cell cycle analysis |
Blood cells, molecules & diseases |
Medium |
32896826
|
| 2021 |
RNF220 interacts with TDP43 in vitro and in vivo and promotes its K48-linked polyubiquitination and proteasomal degradation. RNF220+/− mice progressively develop ALS-like motor neuron pathology including TDP43 cytoplasmic accumulation, astrocytosis, muscle denervation, and atrophy. |
Co-immunoprecipitation, ubiquitination assay, RNF220+/− mouse model, immunofluorescence, motor behavior assays |
Journal of molecular cell biology |
Medium |
33386850
|
| 2021 |
Biallelic missense mutations in RNF220 (p.R363Q and p.R365Q) cause leukodystrophy with ataxia and deafness in humans. Mass spectrometry identified lamin B1 as an RNF220 binding partner; co-immunoprecipitation confirmed reduced binding of both mutants to lamin B1. RNF220 silencing in Drosophila disrupts localization of lamin Dm0, causes lamin aggregation, and produces a neurodegenerative phenotype. Patient fibroblasts with RNF220 mutations show nuclear morphology abnormalities (blebs, herniations, invaginations). |
Whole-exome sequencing, mass spectrometry, co-immunoprecipitation, Drosophila RNAi, immunofluorescence in patient fibroblasts |
Brain : a journal of neurology |
Medium |
33964137
|
| 2022 |
RNF220 directly interacts with AMPA receptor subunits and mediates their polyubiquitination; RNF220 knockout specifically increases AMPAR protein levels and enhances basal synaptic transmission while impairing synaptic plasticity. Two neuropathology-related RNF220 variants fail to regulate AMPAR ubiquitination due to attenuated interaction, and forebrain RNF220-deficient mice show altered learning and memory. |
Co-immunoprecipitation, ubiquitination assay, RNF220 KO mice, electrophysiology (miniature EPSCs, LTP), surface biotinylation, behavioral testing |
Science advances |
High |
36179027
|
| 2022 |
RLIM (an E3 ubiquitin ligase) stabilizes ZC4H2 via direct ubiquitination, which in turn stabilizes RNF220, establishing an RLIM–ZC4H2–RNF220 cascade required for full Shh signaling during cerebellar development and medulloblastoma progression. Disease-causative RLIM and ZC4H2 mutations disrupt their interaction and regulation within this cascade. |
Co-immunoprecipitation, ubiquitination assay, Western blot stability assay, ZC4H2/RLIM KO mouse models, clinical MB sample analysis |
Journal of molecular cell biology |
Medium |
35040952
|
| 2022 |
RNF220 is required for dorsoventral patterning of the hindbrain neural tube; conditional knockout disrupts ventral progenitor domains (p1, p2, pMN) and alters development of oligodendrocyte precursor cells and serotonergic neurons in the hindbrain. |
Nestin-Cre conditional KO mice, immunofluorescence for domain markers at E10.5 and E12.5 |
Frontiers in cell and developmental biology |
Medium |
35399523
|
| 2023 |
Smurf1 and Smurf2 interact with RNF220 and target it for polyubiquitination and proteasomal degradation; in medulloblastoma cells, knockdown or overexpression of Smurf1/Smurf2 controls RNF220 protein levels and consequently modulates Shh signaling and cell proliferation. |
Co-immunoprecipitation, ubiquitination assay, Smurf1/2 knockdown/overexpression in MB cells, xenograft, clinical sample protein level correlation |
Cell death & disease |
Medium |
37537194
|
| 2023 |
RNF220 binds USP22 in gastric cancer cells; knockdown of RNF220 downregulates the Wnt/β-catenin axis via USP22, suppressing cell growth and stemness. This pathway dependence on USP22 was confirmed by USP22 overexpression rescue. |
Co-immunoprecipitation, RNF220 knockdown/overexpression, USP22 overexpression rescue, Western blot, xenograft |
Tissue & cell |
Medium |
37295272
|
| 2024 |
RNF220 targets Olig1 and Olig2 transcription factors for K63-linked polyubiquitination, which stabilizes these proteins during oligodendroglial development. RNF220 depletion in oligodendrocyte lineage cells impairs OPC proliferation, differentiation, and myelination. A leukodystrophy-linked knock-in RNF220R365Q mutation deregulates Olig1/2 ubiquitination and stabilization, leading to oligodendroglial developmental defects and impaired myelination. |
Co-immunoprecipitation, ubiquitination assay, RNF220 conditional KO mice, RNF220R365Q knock-in mice, Western blot, immunofluorescence, behavioral testing |
Science advances |
High |
38324685
|
| 2024 |
RNF220 promotes polyubiquitination and degradation of WDR5 (a TrxG complex component), and loss of RNF220 leads to de-repression of Hox gene expression in the hindbrain pons at late developmental stages (post-E15.5). Genetic ablation of Wdr5 or WDR5 inhibitor treatment in Rnf220-KO mice largely recovers normal Hox expression patterns. |
RNF220 KO mice, single-nucleus RNA-seq, co-immunoprecipitation, ubiquitination assay, WDR5 inhibitor treatment, Wdr5 conditional KO rescue, P19 cell retinoic acid induction |
eLife |
High |
39526890
|
| 2025 |
RNF220 directly interacts with PDE10A and mediates its K48-linked ubiquitination and proteasomal degradation in cisplatin-resistant bladder cancer cells; this destabilization of PDE10A promotes PD-L1 expression. RNF220 mRNA is stabilized by m6A modification via METTL3 and IGF2BP2. |
Co-immunoprecipitation, ubiquitination assay, RNF220 overexpression/knockdown in vitro and in vivo, m6A methylation analysis, Western blot |
Biochemical pharmacology |
Medium |
40158470
|
| 2025 |
RNF220 mediates K63-linked polyubiquitination of STAT3 at lysine residues K615, K626, K631, and K642 via direct binding through its N-terminal domain to the SH2 and TAD domains of STAT3, stabilizing STAT3 protein and driving pro-hypertrophic responses in cardiomyocytes. RNF220 KO suppresses Ang II-induced cardiac hypertrophy and fibrosis, while RNF220 overexpression aggravates it. |
Co-immunoprecipitation, proteomic mass spectrometry, ubiquitination assay with site-directed mutants, RNF220 KO and overexpression mice, Ang II cardiac hypertrophy model, STAT3 inhibitor rescue |
Cell death and differentiation |
High |
41219491
|
| 2025 |
The short N-terminally deleted isoform of RNF220 (ΔN-RNF220/isoform 4) is the predominant and ubiquitously expressed isoform in non-brain tissues in mice. Isoform 4b shows distinct subcellular localization and interaction with nuclear protein WDR5. In murine myoblasts, isoform 4 is the sole expressed form and is required for MyoD and myogenin expression and muscle differentiation. |
Western blot isoform analysis, subcellular fractionation, co-immunoprecipitation (isoform 4b-WDR5), RNF220 isoform-specific KD in myoblasts, differentiation assay, ChIP-seq (ENCODE data) |
Molecules and cells |
Medium |
40609864
|