| 2005 |
RNF6 binds to, polyubiquitinates, and targets LIMK1 for proteasomal degradation in growth cones of primary hippocampal neurons. RNAi-mediated knockdown of Rnf6 alters axon outgrowth, and this phenotype can be rescued by modulating LIMK1 expression, placing RNF6 upstream of LIMK1 in the control of axonal growth cone actin dynamics. |
Co-IP/pulldown, in vitro ubiquitination assay, RNAi knockdown with phenotypic rescue, primary hippocampal neuron cultures |
Genes & development |
High |
16204183
|
| 2009 |
RNF6 is an E3 ubiquitin ligase that associates with the androgen receptor (AR), induces AR ubiquitination, and promotes AR transcriptional activity. Knockdown of RNF6 or mutation of RNF6-induced ubiquitination acceptor sites on AR selectively alters expression of a subset of AR target genes and diminishes recruitment of AR and its coactivators to androgen-responsive elements. |
Proteomic screen (Co-IP), ubiquitination assays, site-directed mutagenesis of AR ubiquitination acceptor sites, ChIP, RNAi knockdown with transcriptional readout |
Cancer cell |
High |
19345326
|
| 2002 |
RNF6 localizes to punctate nuclear bodies together with PML and Daxx proteins in mouse Sertoli cells, and its re-expression in a Sertoli tumor cell line (where both Inha and Rnf6 are reduced) restores Inha expression and reverts cells to normal growth control, identifying RNF6 as a transcriptional regulator of the Inha promoter through binding of a GGGGC repeat motif. |
Expression screening, transient and stable transfection with reporter assays, co-localization by immunofluorescence, cell growth assays |
Molecular and cellular biology |
Medium |
11971979
|
| 2018 |
RNF6 binds and ubiquitylates TLE3, a transcriptional repressor of the β-catenin/TCF4 complex, leading to TLE3 proteasomal degradation. RNF6-mediated TLE3 loss releases β-catenin to TCF4/LEF, activating Wnt/β-catenin signaling and promoting colorectal cancer cell growth and metastasis. |
Co-IP, ubiquitination assay, rescue experiments with TLE3 re-expression, in vivo tumor/metastasis models |
Cancer research |
High |
29374067
|
| 2018 |
RNF6 directly binds and ubiquitylates FoxA1, a transcriptional repressor of EMT, leading to its degradation; the oncogenic effects of RNF6 in hepatocellular carcinoma are partially dependent on FoxA1 degradation. |
Co-IP, ubiquitination assay, RNF6 knockdown with phenotypic rescue by FoxA1, in vivo metastasis models |
Experimental cell research |
Medium |
30496760
|
| 2018 |
RNF6 regulates STAT3 signaling in gastric cancer by inducing polyubiquitination and degradation of the phosphatase SHP-1, thereby relieving SHP-1-mediated inhibition of STAT3 phosphorylation and promoting expression of STAT3 target genes MCL1 and XIAP. |
Immunoprecipitation/ubiquitination assay, luciferase reporter assay, Western blot, RNF6 knockdown/overexpression |
OncoTargets and therapy |
Medium |
30323630
|
| 2019 |
RNF6 interacts with the glucocorticoid receptor (GR) and induces K63-linked polyubiquitination of GR, which stabilizes GR protein (rather than degrading it) and promotes GR transcriptional activity, leading to increased expression of pro-survival genes Bcl-xL and Mcl-1 and resistance to dexamethasone in multiple myeloma cells. |
Co-IP, ubiquitination assay specifying K63 linkage, luciferase reporter assay, RNF6 overexpression/knockdown |
Acta pharmacologica Sinica |
Medium |
31645658
|
| 2022 |
RNF6 undergoes auto-ubiquitination (K48-linked polyubiquitination) in a manner dependent on its RING domain; deletion of the RING domain (ΔRING) or mutation of core cysteine residues (C632S/C635S) abolishes this auto-ubiquitination. USP7 was identified as a deubiquitinase of RNF6 by tandem mass spectrometry; USP7 interacts with RNF6 and removes K48-linked polyubiquitin chains, preventing RNF6 degradation. Anti-cancer drugs Nilotinib and Panobinostat induce RNF6 K48-linked auto-ubiquitination and degradation in an in vitro ubiquitination system without other E3 ligases. |
RING domain deletion mutagenesis, cysteine-to-serine point mutagenesis, tandem mass spectrometry identification of USP7, Co-IP, in vitro ubiquitination reconstitution assay |
The Journal of biological chemistry |
High |
35926709
|
| 2022 |
RNF6 interacts with p27 (Kip1) via its KIL domain in a phosphorylation-independent manner, enhances ubiquitination and subsequent proteasomal degradation of p27 in the early G0/G1 phase of the cell cycle, and thereby promotes CDK2/Cyclin E complex activity, Rb phosphorylation, and cell cycle progression in prostate cancer cells. |
Co-IP, ubiquitination assay, shRNA knockdown with cell cycle (G1 arrest) readout, domain mapping |
Pharmaceutics |
Medium |
35456636
|
| 2021 |
RNF6 interacts with MST1 (a kinase regulating YAP), promotes MST1 ubiquitination and degradation, and thereby upregulates YAP signaling to promote breast cancer cell metastasis. |
Co-IP, ubiquitination assay, RNF6 knockdown/overexpression with YAP and metastasis readouts |
Experimental and therapeutic medicine |
Low |
34970341
|
| 2021 |
RNF6 promotes colorectal cancer invasion and migration by increasing GSK3β phosphorylation (inhibiting GSK3β activity), which in turn activates the Wnt/β-catenin pathway. |
RNF6 overexpression/silencing with Western blot, GSK3β inhibitor rescue, in vivo rat CRC model |
Pathology, research and practice |
Low |
34352441
|
| 2022 |
RNF6 mediates ubiquitination and degradation of the RNA-binding protein QKI in macrophages; this RNF6-mediated QKI degradation activates PI3K-p110β-dependent autophagy and enhances phagocytic clearance of MRSA. |
Co-IP, iTRAQ mass spectrometry, immunoprecipitation-ubiquitination assay, QKI knockout mouse model, MRSA infection model |
Cell & bioscience |
Medium |
36088389
|
| 2023 |
In gastric cancer cells, RNF6 localizes to the nucleus and directly binds to the promoter regions of CCNA1 and CREBBP, acting as a transcription factor to regulate their expression and promote tumor cell cycle progression and apoptosis resistance. |
ChIP-seq, ChIP-PCR, RNF6 overexpression/silencing with CCNA1/CREBBP rescue, luciferase assay |
Cell cycle (Georgetown, Tex.) |
Medium |
37904524
|
| 2025 |
RNF6 physically binds cyclin D2 (CCND2) and mediates its K48-linked polyubiquitination and proteasomal degradation in lung adenocarcinoma cells. RING-domain-deleted RNF6 (ΔRING) fails to ubiquitinate CCND2. Thr280 on CCND2 is critical for its stability; T280 mutation makes CCND2 more stable and less susceptible to RNF6-mediated ubiquitination. RNF6 arrests LUAD cells in G1 by inhibiting CCND2/phospho-Rb signaling. |
Affinity purification/tandem MS, Co-IP, ubiquitination assay, RING domain deletion mutagenesis, Thr280 point mutation, cell cycle analysis, in vivo xenograft |
Molecular cancer research : MCR |
High |
39918413
|
| 2025 |
RNF6 interacts with p27 and directly ubiquitinates it via E3 ligase activity, and also indirectly accelerates p27 degradation by acting as a transcription factor to activate SKP2 promoter activity and by interacting with SKP2 to stabilize its protein levels in an Akt-dependent manner, thereby driving glioblastoma cell proliferation. |
Co-IP, ubiquitination assay, SKP2 promoter reporter assay, Western blot, RNF6 knockdown/overexpression with cell growth readout |
Biochemical and biophysical research communications |
Medium |
39938447
|
| 2025 |
CXCL13 enhances RNF6 expression in endothelial cells, and RNF6 facilitates ubiquitination of Sqstm1 at the K314 residue, thereby promoting autophagy and damaging blood spinal cord barrier integrity in experimental allergic encephalomyelitis. |
Co-IP, ubiquitination assay (K314 site-specific), Western blot, in vivo EAE model with barrier permeability readout |
Advanced science |
Medium |
40231770
|
| 2026 |
RNF6 directly binds NME4 and facilitates its K48-linked polyubiquitination and proteasomal degradation; NME4 degradation activates the JNK/c-JUN pathway in ovarian cancer cells, promoting proliferation, invasion, and EMT. |
Co-IP, CHX chase assay, ubiquitination assay (K48-specific), RNF6/NME4 knockdown rescue experiments, in vivo xenograft |
Pathology, research and practice |
Medium |
41616518
|
| 2026 |
RNF6 promotes ubiquitination and proteasomal degradation of OTULIN (a linear deubiquitinase) in bronchial epithelial cells; RNF6 knockdown stabilizes OTULIN and suppresses TGF-β1-induced partial EMT-like phenotypic changes, while OTULIN knockdown reverses the protective effect of RNF6 silencing. |
Co-IP/mass spectrometry (label-free proteomics), Co-IP validation, immunofluorescence co-localization, cycloheximide/MG132 stability assay, RNF6 and OTULIN knockdown rescue experiments |
Biochemical pharmacology |
Medium |
42055142
|
| 2026 |
RNF6 interacts with the Zika virus NS5 protein and acts as a negative regulator of type I interferon and MAPK signaling pathways, functioning as a proviral host factor for ZIKV replication in brain microvascular endothelial cells; RNF6 knockout reduces ZIKV infection while overexpression enhances it. |
Genome-wide CRISPR/Cas9 screen, RNF6 knockout/knockdown/overexpression with viral replication readout, Co-IP for NS5 interaction, molecular docking |
Viruses |
Medium |
41902231
|
| 2016 |
PBX1 directly binds a PBX1 recognition element (PRE) between -144 and -99 upstream of the RNF6 transcription start site and, in collaboration with PREP1 (but not MEIS1), activates RNF6 transcription; mutation of the PRE completely abolishes RNF6 transcription. Doxorubicin suppresses RNF6 expression by down-regulating PBX1. |
Luciferase reporter assay with truncated RNF6 promoter constructs, PRE mutation, ChIP, knockdown experiments |
The Journal of biological chemistry |
Medium |
26971355
|