| 2010 |
USP12 and USP46 deubiquitinate histone H2A and H2B (preferring nucleosomal substrates) in vitro and in vivo; WDR48 (a WD40 repeat protein) interacts with USP12 and USP46 and is required for this histone deubiquitination activity. |
In vitro deubiquitination assay with nucleosomal substrates, co-immunoprecipitation, Xenopus knockdown/overexpression with ChIP |
The Journal of biological chemistry |
High |
21183687
|
| 2010 |
WDR20, a WD40-repeat protein, forms a ternary complex with USP12 and UAF1 (WDR48), and WDR20 stimulates the enzymatic activity of the USP12·UAF1 complex but not of USP1·UAF1, distinguishing the USP12/USP46 complexes from the USP1 complex. |
Tandem affinity purification, co-immunoprecipitation, in vitro deubiquitinase activity assay, siRNA depletion |
The Journal of biological chemistry |
High |
20147737
|
| 2013 |
USP12, in complex with UAF1 and WDR20, deubiquitinates the androgen receptor (AR), enhancing AR protein stability and transcriptional activity in prostate cancer cells. |
siRNA screen, co-immunoprecipitation, ubiquitination assay, AR stability and transcriptional reporter assays |
The Journal of biological chemistry |
High |
24056413
|
| 2013 |
The WDR48·USP12 complex deubiquitinates PHLPP1, stabilizing it and thereby suppressing Akt activation and promoting apoptosis; identified via tandem affinity purification. |
Tandem affinity purification, co-immunoprecipitation, ubiquitination/deubiquitination assay, Akt phosphorylation assay, proliferation assay |
The Journal of biological chemistry |
High |
24145035
|
| 2012 |
USP12 (with activator UAF1) deubiquitinates the non-activated form of Notch receptor, promoting its trafficking to lysosomes for degradation; USP12 silencing interrupts Notch lysosomal trafficking, increasing surface Notch and Notch signaling activity. |
shRNA library screen, in vitro deubiquitination assay, Notch trafficking assay (flow cytometry, confocal imaging), Drosophila homolog validation |
The Journal of biological chemistry |
High |
22778262
|
| 2016 |
Crystal structure of USP12-Ub/UAF1 complex (2.8 Å) revealed two UAF1 binding sites; USP12/UAF1 complex has 1:2 stoichiometry with high-affinity (4 nM) and low-affinity (325 nM) binding steps; the fingers subdomain of USP12 mediates the high-affinity UAF1 interface required for activation. |
X-ray crystallography, mutagenesis, binding assays (stoichiometry determination), enzymatic activity assays |
Journal of structural biology |
High |
27650958
|
| 2016 |
Upon TCR stimulation, USP12 undergoes phosphorylation and translocates from the nucleus to the cytosol; USP12 deubiquitylates LAT and Trat1 (TCR adaptor proteins), preventing their lysosomal degradation and maintaining the proximal TCR complex for sustained NFκB, NFAT, and MAPK signaling. |
Activity-based DUB probes (HA-Ub-VME), USP12-KO Jurkat cells, proximity-based BirA labeling, co-immunoprecipitation, rescue experiments, flow cytometry |
Proceedings of the National Academy of Sciences of the United States of America |
High |
26811477
|
| 2014 |
USP12, in complex with UAF1 and WDR20, directly deubiquitinates and stabilizes PHLPP and PHLPPL phosphatases, reducing active pAkt levels and consequently decreasing AR phosphorylation at Ser213, thereby enhancing AR stability and transcriptional activity. |
Co-immunoprecipitation, ubiquitination/deubiquitination assay, Akt phosphorylation assay, AR transcriptional reporter |
Oncotarget |
High |
25216524
|
| 2018 |
USP12 deubiquitinates MDM2 and AR, controlling TP53 tumor suppressor levels and AR oncogene levels in prostate cancer; identified via transcriptome analysis and denaturing immunoprecipitations. |
Transcriptome analysis, denaturing co-immunoprecipitation, immunohistochemistry |
Oncogene |
Medium |
29755129
|
| 2018 |
WDR20 promotes recruitment of USP12 (but not USP46) to the plasma membrane, and the USP12/UAF1/WDR20 complex dynamically shuttles between plasma membrane, cytoplasm, and nucleus via CRM1-dependent nuclear export; this requires a short N-terminal motif (1MEIL4) in USP12 and a NES in WDR20. |
Confocal and live microscopy, site-directed mutagenesis, CRM1 inhibitor (leptomycin B) treatment, co-immunoprecipitation |
European journal of cell biology |
Medium |
30466959
|
| 2020 |
USP12 interacts with the HAT domain of CBP and inhibits CBP acetyltransferase activity independently of its deubiquitinase activity; during IFN signaling, USP12 translocates from cytoplasm to nucleus, where nuclear USP12 accumulation blocks CBP-mediated acetylation of phospho-STAT1, inhibiting TCPTP-dependent dephosphorylation and maintaining nuclear p-STAT1 levels. |
Co-immunoprecipitation, CBP acetyltransferase activity assay, subcellular fractionation, catalytic mutant USP12, p-STAT1 dephosphorylation assay |
PLoS pathogens |
Medium |
31899788
|
| 2021 |
USP12 interacts with, deubiquitylates, and stabilizes HMGB1, sustaining HMGB1-mediated pro-survival autophagy and contributing to bortezomib resistance in multiple myeloma. |
Co-immunoprecipitation, ubiquitination assay, USP12 knockdown, autophagy flux assay |
Oncogene |
Medium |
34997217
|
| 2021 |
USP12 deubiquitinates and stabilizes PPM1B (a phosphatase), and USP12 downregulation causes insufficient PPM1B deubiquitination leading to NF-κB hyperactivation in tumor cells, creating an immunosuppressive microenvironment. |
Co-immunoprecipitation, ubiquitination assay, USP12 KO mouse lung tumor model, NF-κB reporter |
Nature communications |
Medium |
34381028
|
| 2021 |
USP12 stabilizes BCL10 by deubiquitinating it, thereby activating NF-κB signaling specifically in CD4+ T cells to promote their activation, differentiation, and proliferation. |
USP12-KO mouse model, co-immunoprecipitation, ubiquitination assay, NF-κB signaling assay, CD4+ T cell functional assays |
Cell death and differentiation |
Medium |
33941870
|
| 2021 |
USP12 binds and stabilizes p300 by deubiquitination, upregulating p300-dependent transcription of METTL3, which catalyzes m6A modification on mRNAs and promotes cardiac hypertrophy. |
Co-immunoprecipitation, ubiquitination assay, USP12 KO/OE in cardiomyocytes and in vivo, METTL3 rescue experiment |
Experimental cell research |
Medium |
34339675
|
| 2021 |
USP12 deubiquitinates and stabilizes midkine (MDK) in breast cancer cells, preventing its polyubiquitination-mediated degradation and promoting tumor angiogenesis. |
Co-immunoprecipitation, ubiquitination assay, MDK overexpression rescue, HUVEC tube formation and migration assays, in vivo metastasis model |
Cell death & disease |
Medium |
34759262
|
| 2022 |
USP12 deubiquitinates and stabilizes p65 (NF-κB subunit) in monocytic MDSCs, upregulating iNOS and PD-L1 expression to suppress CD8+ T cell responses and promote tumor immune evasion. |
Co-immunoprecipitation, ubiquitination assay, USP12-KO mouse model, T cell suppression assay |
Immunology |
Medium |
35898171
|
| 2022 |
USP12 interacts with Bax and removes K63-linked ubiquitin chains from Bax (at K128 and K190 sites), affecting Bax protein half-life without targeting it for proteasomal degradation. |
Yeast two-hybrid, co-immunoprecipitation, site-directed mutagenesis of Bax ubiquitination sites, half-life assay |
International journal of molecular sciences |
Medium |
36361894
|
| 2023 |
USP12 inhibits proteasome-dependent degradation of IFI16 through its deubiquitinase activity, maintaining IFI16 stability and promoting IFI16-STING-IRF3/p65-mediated antiviral signaling against HSV-1. |
USP12 KO/KD, co-immunoprecipitation, ubiquitination assay, IFN-β/ISG expression assay, viral replication assay |
PLoS pathogens |
Medium |
37410794
|
| 2023 |
USP12 directly interacts with and deubiquitinates RRM2 (ribonucleotide reductase catalytic subunit), stabilizing it in non-small cell lung cancer cells; USP12 knockdown causes DNA replication stress. |
Co-immunoprecipitation, ubiquitination assay, USP12 KD, DNA replication stress markers, in vivo tumor growth assay |
Molecular carcinogenesis |
Medium |
37341611
|
| 2024 |
USP12/46-WDR48-WDR20 ternary complex removes ubiquitin from the cytoplasmic tail of internalized β1 integrin (Itgb1) in early endosomes, preventing ESCRT-mediated sorting and lysosomal degradation, thereby stabilizing integrin surface levels. |
Genetic screen, proximity-dependent biotin identification (BioID), co-immunoprecipitation, integrin surface level assay, ESCRT pathway analysis |
bioRxivpreprint |
Medium |
bio_10.1101_2024.05.14.594138
|
| 2024 |
WDR20 and USP12/46 co-deubiquitinate c-Myc simultaneously to maintain its stability; WDR20 silencing disturbs c-Myc protein stability, promoting CDKN1A transcription and HCC cellular senescence. |
siRNA screen of WDR-domain proteins, co-immunoprecipitation, ubiquitination assay, ChIP, patient-derived organoids, xenograft and transgenic mouse models |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
39432777
|
| 2024 |
USP12 interacts with YAP, inhibits K48-linked polyubiquitination of YAP at K315, and stabilizes YAP in the nucleus to promote Hippo/YAP signaling in gastric cancer. |
DUB siRNA library screen, co-immunoprecipitation, ubiquitination site mutagenesis (K315R), immunostaining for nuclear localization, in vitro and in vivo tumor growth assays |
Cell death discovery |
Medium |
38605077
|
| 2021 |
DMWD (dystrophia myotonica WD repeat protein), analogous to WDR20, directly binds USP12 at the same interface as WDR20 (suggesting mutually exclusive binding), promotes USP12 enzymatic activity, but differentially modulates USP12 subcellular localization compared to WDR20. |
Co-immunoprecipitation of epitope-tagged proteins, enzymatic activity assay, subcellular localization imaging, phylogenetic analysis |
The FEBS journal |
Medium |
33844468
|
| 2024 |
METTL3/YTHDF1-mediated m6A modification stabilizes USP12 mRNA; elevated USP12 then interacts with and deubiquitinates FOXO3, preventing its ubiquitin-mediated degradation and leading to PUMA upregulation and intrinsic apoptosis in sepsis-induced myocardial dysfunction. |
Proteomic profiling, m6A modification analysis, co-immunoprecipitation, ubiquitination assay, in vitro/in vivo LPS-SIMD model, pathway inhibitor experiments |
Molecular immunology |
Medium |
39662205
|