| 2001 |
PUM2 contains a C-terminal PUM-HD RNA-binding domain and binds a consensus RNA sequence (PBE: UGUANAUARNNNNBBBBSCCS) with high affinity (Kd ~6.5 nM), as determined by SELEX with recombinant PUM2 PUM-HD protein. |
SELEX (iterative amplification-selection), recombinant protein binding assay |
RNA |
High |
11780640
|
| 2005 |
Human PUM2 specifically binds the Drosophila Nanos Response Element (NRE); single nucleotide changes abolish binding. PUM2 and DAZL co-immunoprecipitate and can bind the same RNA targets, including the 3'UTR of human SDAD1 mRNA. |
Co-immunoprecipitation, RNA binding assays, mutational analysis of NRE |
Genomics |
High |
15607425
|
| 2005 |
Human BOULE (BOL) forms homodimers and interacts with PUM2. BOL and PUM2 form a complex on a subset of PUM2 RNA targets distinct from targets bound by PUM2/DAZL, indicating that protein cofactors determine which RNA targets are bound by PUM2. |
Co-immunoprecipitation, domain mapping, RNA binding assays |
Molecular reproduction and development |
Medium |
15806553
|
| 2005 |
PUM2 binds the 3'UTR of P2P-R mRNA via PUM2-binding elements (one perfect and two near-perfect PBEs), as confirmed by PUM2 pull-down combined with RT-PCR, suggesting PUM2-mediated translational regulation of P2P-R. |
RNA pull-down, RT-PCR |
Journal of cellular physiology |
Medium |
15617101
|
| 2011 |
PUM2 physically binds the D-box of Aurora-A kinase, protects Aurora-A from APC/C(Cdh1)-mediated ubiquitination and proteasomal degradation, and enhances Aurora-A kinase activity. In interphase, PUM2 is cytoplasmic and acts as a translational repressor; in mitosis, PUM2 translocates to centrosomes to stabilize and activate Aurora-A. |
Co-immunoprecipitation, ubiquitination assay, kinase activity assay, overexpression/depletion, immunofluorescence localization |
PloS one |
High |
21589936
|
| 2019 |
PUM2 inhibits translation of Mff (mitochondrial fission factor) mRNA, impairing mitochondrial fission and mitophagy. PUM2 levels increase with aging; CRISPR/Cas9-mediated Pum2 knockout in elderly mouse muscles enhances mitochondrial fission and mitophagy, improving mitochondrial quality control. |
Multi-omics, translational repression assays, CRISPR/Cas9 knockout in mice, cross-species (C. elegans puf-8 knockdown) |
Molecular cell |
High |
30642763
|
| 2019 |
PUM1 and PUM2 repress translation of Cdkn1b (p27) by binding PBEs in its 3'UTR, promoting G1-S transition and cell proliferation, thereby controlling mouse body and organ size. Auto-regulatory and reciprocal post-transcriptional repression between Pum1 and Pum2 contributes to tissue-specific size control. |
Reporter assays (3'UTR luciferase), genetic null mouse models, epistasis (Cdkn1b deficiency rescue), cell proliferation assays |
Cell reports |
High |
30811992
|
| 2019 |
Pum2 is restricted to the soma of developing neurons and retains PBE-containing mRNAs in the cell body, preventing their transport into axons. Pum2 knockdown causes PBE-containing mRNAs to appear and be translated in axons, and Pum2-deficient neurons exhibit axon growth, branching, and regeneration defects. |
Knockdown (shRNA), live-cell imaging, mRNA localization assays, in vivo axon branching analysis, axon regeneration assay |
Neuron |
High |
31606248
|
| 2019 |
PUM2 directly binds the 3'UTR of JAK2 and RUNX2 mRNAs and represses their translation. PUM2 depletion blocks MSC adipogenesis and enhances osteogenesis; Pum2 CRISPR knockdown in zebrafish inhibits lipid accumulation and induces bone formation. |
3'UTR reporter assays, RNA immunoprecipitation, CRISPR/Cas9 knockdown in zebrafish, differentiation assays |
Journal of cellular physiology |
High |
31595981
|
| 2019 |
PUM2 cooperativity in binding multiple PBE sites is mediated by RNA structure rather than direct protein-protein interactions; binding of one PUM2 molecule redistributes RNA conformational states to modulate access to additional PBE sites (positive or negative cooperativity depending on structural stability). |
Equilibrium binding measurements on 68 synthetic RNAs, statistical mechanical modeling, two-temperature analysis |
RNA |
High |
30914482
|
| 2018 |
PUM2 (but not PUM1) requires PBEs for repression of SIAH1 3'UTR-dependent reporter expression, whereas PUM1 exhibits PBE-independent repression. NANOS3 directly binds SIAH1 3'UTR independently of PBEs or the PUF domain, cooperating with PUM proteins in mRNA regulation. |
Luciferase reporter assays, EMSA, mutational analysis of PBEs |
Cellular and molecular life sciences |
Medium |
30269240
|
| 2019 |
PUM2 competitively binds to STARD13 3'UTR with miR-590-3p and miR-9, as shown by RIP-seq and luciferase reporter assays. PUM2 overexpression inhibits osteosarcoma cell proliferation, migration, and stemness via this mechanism. |
RNA immunoprecipitation combined with RNA sequencing, luciferase reporter assay, cell functional assays |
Cell proliferation |
Medium |
30084199
|
| 2020 |
SUMOylation of PUM2 by UBE2I/SUMO2/3 decreases PUM2 protein stability and reduces PUM2's inhibitory effect on CEBPD mRNA, leading to upregulation of CEBPD and downstream DSG2, which promotes glioma vasculogenic mimicry. |
Co-immunoprecipitation, immunofluorescence, RIP assay, ChIP assay, luciferase assay, cell invasion/migration assays |
Clinical and translational medicine |
Medium |
32997416
|
| 2020 |
Pum2 mediates decay of Sirt1 mRNA via binding to two PBEs in the Sirt1 3'UTR. Pum2-mediated Sirt1 mRNA decay promotes LKB1 acetylation and represses AMPK pathway activity, contributing to cardiomyocyte apoptosis in hypoxia/reoxygenation injury. |
3'UTR binding assay, overexpression/knockdown, Western blot for AMPK pathway, apoptosis assays |
Experimental cell research |
Medium |
32437714
|
| 2020 |
Pum2 overexpression reduces Mff protein levels (without affecting mRNA) and preserves mitochondrial homeostasis in acute ischemic kidney injury, confirming the Pum2-Mff post-transcriptional axis in renal tubular cells. |
Western blot, overexpression in murine ischemia model, mitochondrial functional assays |
Cell biology and toxicology |
Medium |
31993882
|
| 2022 |
Pum2 directly interacts with and affects the translation (but not mRNA levels or splicing) of Sox5, Bcl11b/Ctip2, and Rorβ mRNAs in mouse neocortical neurons, regulating area-specific cytoarchitecture and subcerebral connectivity. |
Transfection of primary neurons, in utero electroporation, retrograde labeling, single-molecule FISH, qRT-PCR, Pum2-Emx1-Cre conditional KO mice |
eLife |
High |
35262486
|
| 2023 |
PUM2 directly binds DLX5 mRNA and represses its translation; PUM2 knockdown upregulates DLX5 expression and enhances osteogenic differentiation of mesenchymal stem cells. |
RNA immunoprecipitation, 3'UTR reporter assay, osteogenic differentiation assay, rat calvarial defect model |
Journal of biomedical science |
Medium |
37088847
|
| 2020 |
PUM2 and PUM1 form distinct RNP regulatory networks in human male germ cells (TCam-2), associating with different protein cofactors (identified by mass spectrometry) and partially non-overlapping mRNA targets (identified by RIP-Seq), indicating functional divergence between paralogs. |
RIP-Seq, RNA-Seq, mass spectrometry-based interactome profiling |
Cells |
Medium |
32316190
|
| 2019 |
LncRNA circ_0075932 binds directly to PUM2 protein; PUM2 positively regulates AuroraA kinase, which activates the NF-κB pathway to promote inflammation and apoptosis in dermal keratinocytes downstream of adipocyte-derived exosomes. |
RNA-protein direct binding assay, siRNA knockdown, NF-κB pathway assays, cell apoptosis/inflammation assays |
Biochemical and biophysical research communications |
Low |
30824182
|
| 2021 |
PUM2 mediates packaging of miR-130a into exosomes in cancer-associated fibroblasts; overexpression/knockdown of PUM2 correspondingly promotes/inhibits exosomal miR-130a loading and xenograft tumor growth. |
Overexpression, knockdown, exosome isolation, miRNA quantification, xenograft mouse model |
International journal of nanomedicine |
Low |
33542625
|
| 2022 |
PUM2 suppresses SIRT1 expression, which in turn inhibits SLC7A11 expression, thereby aggravating ferroptosis and neuroinflammation in cerebral ischemia-reperfusion injury. |
RT-qPCR, Western blot, knockdown in MCAO mouse model and OGD/R cell model, rescue assays |
Molecular and cellular biochemistry |
Low |
35997855
|
| 2023 |
PUM2 binds EFEMP1 mRNA via immunoprecipitation and promotes EFEMP1 expression (stabilization), inhibiting vascular smooth muscle cell phenotypic switching (proliferation/migration) and preventing aortic dissection in an Ang-II mouse model. |
Immunoprecipitation of RNA, Western blot, overexpression vectors, Ang-II mouse model, immunofluorescence |
Experimental cell research |
Medium |
37062520
|
| 2024 |
PUM2 facilitates degradation of NEDD4 mRNA by binding its 3'UTR, which prevents NEDD4-mediated ubiquitination and degradation of PTEN, thereby increasing PTEN levels and promoting chondrocyte ferroptosis through the Nrf2/HO-1 pathway. |
RNA immunoprecipitation, 3'UTR binding assay, Western blot, knockdown/overexpression, DMM mouse OA model |
Environmental toxicology |
Medium |
38733337
|
| 2025 |
SENP1 directly deSUMOylates PUM2 (confirmed by Ni2+-NTA pull-down and co-IP), thereby enhancing PUM2 stability and expression. Stabilized PUM2 binds the 3'UTR of NRF2 mRNA, reducing NRF2 levels and diminishing transcriptional activation of HK1 and GLUT1, reducing glycolytic function in astrocytes. |
Ni2+-NTA agarose pull-down, co-immunoprecipitation, 3'UTR binding assay, APP/PS1 transgenic mouse model, knockdown rescue |
Cell biology and toxicology |
Medium |
39794619
|
| 2025 |
PUM2-mediated repression of target mRNAs requires the CCR4-NOT deadenylase and is dependent on poly(A)-binding proteins PABPC1 and PABPC4; PUM2 associates with PABPCs, and increasing PABPC concentration inhibits PUM activity by stabilizing poly(A) tails. |
mRNA stability assays, co-immunoprecipitation of PUM with PABPCs, deadenylase requirement assays, PABPC titration experiments |
bioRxivpreprint |
Medium |
bio_10.1101_2025.10.02.680050
|
| 2025 |
PUM2 directly binds conserved Pumilio response elements (PREs) in SARS-CoV-2 transcripts, as shown by interactome data and PRE analysis, but neither PUM1 nor PUM2 affects progeny virion production. |
High-throughput interactome analysis, PRE mapping, PUM depletion and viral replication assays |
The Journal of general virology |
Medium |
40956600
|
| 2024 |
PUM2 directly binds the 3'UTR of FOXO3 mRNA and inhibits its expression, promoting chondrocyte apoptosis in osteoarthritis. |
RNA immunoprecipitation, RNA pull-down, luciferase reporter, overexpression/knockdown, flow cytometry |
Heliyon |
Medium |
38356524
|
| 2025 |
PUM2 suppresses stability of HDAC9 mRNA via direct binding (RIP and pull-down), attenuating HDAC9 expression and thereby reducing oxidative stress and promoting autophagy in diabetic contrast-induced acute kidney injury. |
RNA immunoprecipitation, RNA pull-down, mRNA stability assay, overexpression/knockdown, mouse DM-CIAKI model |
Diabetes & metabolism journal |
Medium |
40930160
|
| 2025 |
The lncRNA Norad sequesters Pum2 protein, reducing its ability to bind and repress Mff mRNA translation. After ischemia-reperfusion, decreased Pum2 levels and binding to Mff mRNA (alongside increased Norad-Pum2 binding) lead to increased Mff protein, mitochondrial fragmentation, and neuronal injury; Pum2 overexpression restores mitochondrial morphology and reduces infarct volume. |
RNA-protein binding assays, OGD/R cell model, MCAO/R mouse model, Pum2 overexpression via viral vector |
Brain research |
Medium |
39832611
|