| 2011 |
Mammalian DPY30, a core subunit of SET1/MLL histone methyltransferase complexes, modulates H3K4 methylation in vitro and directly regulates chromosomal H3K4 trimethylation (H3K4me3) genome-wide. Depletion of DPY30 does not affect ESC self-renewal but significantly alters differentiation potential, particularly along the neural lineage, accompanied by defects in gene induction and H3K4 methylation at key developmental loci. |
In vitro H3K4 methylation assay, genome-wide ChIP, siRNA knockdown in ESCs with differentiation assays |
Cell |
High |
21335234
|
| 1994 |
C. elegans DPY-30 is an essential component of the dosage compensation machinery; loss-of-function mutations disrupt dosage compensation and cause XX-specific lethality, and DPY-30 is also required for normal development of XO animals (coordinated movement, body size, tail morphology). DPY-30 mutations can influence sexual fate determination. |
Genetic analysis, null mutant characterization, phenotypic rescue experiments in C. elegans |
Genetics |
High |
7982580
|
| 1995 |
C. elegans DPY-30 is a ubiquitous nuclear protein (123 aa) present in both hermaphrodites and males throughout development. DPY-30 is required for the sex-specific association of DPY-27 with hermaphrodite X chromosomes (dosage compensation complex recruitment), but DPY-30 itself is not associated with X chromosomes. Rescue of both XX lethality and XO morphological defects requires dpy-30 expression only through end of gastrulation. |
Molecular cloning, nuclear localization by immunofluorescence, genetic rescue experiments, dosage compensation complex localization assays |
Development (Cambridge, England) |
High |
7588066
|
| 2014 |
Crystal structure of the DPY-30 dimerization/docking (D/D) module in complex with an amphipathic α-helix from the C-terminus of ASH2L reveals that DPY-30 incorporation into COMPASS-like complexes is mediated by hydrophobic interactions between this ASH2L helix and the inner surface of the DPY-30 D/D domain. Mutations impairing ASH2L–DPY-30 interaction reduce H3K4me3 at the β-globin locus control region and delay erythroid terminal differentiation. DPY-30 also interacts with BAP18, a subunit of the NURF nucleosome remodeling complex, via the same D/D surface. |
X-ray crystallography, overlay/pull-down binding assays, site-directed mutagenesis, ChIP for H3K4me3, erythroid differentiation assays |
Structure (London, England : 1993) |
High |
25456412
|
| 2014 |
DPY30 promotes ex vivo proliferation and myelomonocytic differentiation of human CD34+ hematopoietic progenitor cells while its knockdown potently promotes hemoglobin production and alters erythroid differentiation kinetics. In vivo, morpholino-mediated dpy30 knockdown in zebrafish causes severe hematopoietic defects rescued by dpy30 mRNA co-injection. DPY30 knockdown also impairs growth of MLL1-fusion leukemia cell lines. |
shRNA/siRNA knockdown in human CD34+ HPCs, colony and differentiation assays, zebrafish morpholino knockdown with mRNA rescue, leukemia cell line growth assays |
Blood |
High |
25139354
|
| 2016 |
Conditional knockout of Dpy30 in the adult hematopoietic system (mouse) causes severe pancytopenia with striking HSC/early HPC accumulation. Dpy30-deficient HSCs cannot differentiate or efficiently upregulate lineage-regulatory genes, fail to sustain long-term, and lose HSC signature gene expression. Molecular analyses show Dpy30 directly and preferentially controls H3K4 methylation and expression of hematopoietic development-associated genes including key transcriptional and chromatin regulators. |
Conditional knockout mouse, bone marrow chimera transplantation, ChIP-seq for H3K4me3, RNA-seq, flow cytometry of hematopoietic progenitor populations |
The Journal of experimental medicine |
High |
27647347
|
| 2018 |
The PKA-binding domain of AKAP8 and the C-terminal Dpy-30 motif of DPY30 are required for their interaction. A single amino acid substitution L69D in DPY30 abolishes dimerization and completely abrogates interaction with both AKAP8 and BIG1 (another AKAP domain-containing protein). AKAP8 interacts with DPY30 and RIIα regulatory subunit of PKA in both interphase and mitotic cells. |
Co-immunoprecipitation, site-directed mutagenesis (L69D), pull-down assays, confocal microscopy in interphase and mitotic cells |
The FEBS journal |
Medium |
29288530
|
| 2019 |
Cell-penetrating peptides derived from ASH2L that bind the ASH2L-binding groove of DPY30 specifically inhibit DPY30's interaction with ASH2L and its enhancement of H3K4 methylation. These peptides significantly inhibit growth of MLL-rearranged leukemia and MYC-dependent hematologic cancer cells, demonstrating the ASH2L-binding groove of DPY30 as a functionally critical domain. |
Peptide design and cell-penetrating delivery, co-immunoprecipitation competition assay, H3K4 methylation measurement, cancer cell growth assays, gene expression analysis |
Experimental cell research |
Medium |
31251903
|
| 2022 |
DPY30 stimulates MLL1 complex methyltransferase activity via two complementary mechanisms: (1) a nucleosome-independent mechanism in which DPY30 functions as an ASH2L-specific stabilizer, increasing ASH2L stability and promoting compaction/stabilization of the MLL1 complex; (2) a nucleosome-specific mechanism in which DPY30-stabilized ASH2L acquires additional interfaces with H3 and nucleosomal DNA to boost methyltransferase activity on nucleosomes. |
In vitro histone methyltransferase assays, biochemical reconstitution, protein stability assays, nucleosome substrate assays |
iScience |
High |
36065180
|
| 2022 |
The ASH2L SDI (Sdc1-DPY30 interaction) domain is essential for DPY30 binding; three specific amino acids in this domain are required for DPY30 recognition. In Ash2l-depleted cells, DPY30 protein levels decrease significantly due to degradation via the ubiquitin-mediated proteasomal pathway (not through transcriptional or translational regulation). Overexpression of DPY30 in Ash2l-depleted cells rescues decreased Ccnd1 and abnormal cell cycle, indicating DPY30 can function in complexes independent of ASH2L. |
Conditional Ash2l knockout mouse model, ChIP-seq, RNA-seq, proteasome inhibitor assays, site-directed mutagenesis of ASH2L SDI domain, co-immunoprecipitation, DPY30 overexpression rescue |
Cells |
Medium |
35563756
|
| 2011 |
In C. elegans, DPY-30 is required for stable chromatin binding of the dosage compensation complex (DCC). Among all Set1/MLL complex subunit homologs, only DPY-30 is required for stable DCC binding to chromatin. This function of DPY-30 in DCC localization is largely independent of H3K4 methylation, as loss of H3K4 methylation does not enhance DCC mislocalization in htz-1 animals. |
Genetic loss-of-function in C. elegans, immunofluorescence of DCC localization, epistasis analysis with htz-1 and Set1/MLL complex subunit mutants |
PloS one |
Medium |
21998734
|
| 2012 |
The DPY-30 domain (D/D module) in radial spoke protein 2 (RSP2) of Chlamydomonas flagella is required for firm attachment of spokehead subunits to the spokestalk and for normal flagellar motility. Deletion of only the DPY-30 domain from RSP2 causes paralyzed flagella, while deletion of the calmodulin-binding C-terminal region restores motility but impairs steering under bright light. This establishes that D/D domains can function as conserved two-prong linkers to organize duplicated subunits in macromolecular complexes. |
Site-directed mutagenesis/deletion transgenic strains in Chlamydomonas, motility assays, flagellar protein fractionation/immunoblot |
Molecular and cellular biology |
Medium |
22851692
|
| 2022 |
In glioblastoma stem cells, DPY30 regulates H3K4me3 deposition on angiogenesis and hypoxia pathway genes (including FOS, NFκB, and PDE family members) in an intracranial in vivo context but is dispensable for cultured GSCs in vitro. PDE4B is a key downstream effector of DPY30, and DPY30 loss reduces H3K4me3 at PDE4B-regulated loci. In vivo genetic screening and ChIP analysis establish the DPY30–H3K4me3–PDE4B axis as a context-specific dependency. |
In vivo genetic screening (intracranial PDX), H3K4me3 ChIP-seq comparison of in vivo vs. in vitro GSCs, transcriptome analysis, PDE4B functional validation, PDE4 inhibitor (rolipram) treatment in PDX mouse model |
Science translational medicine |
Medium |
34985972
|
| 2022 |
Conditional deletion of Dpy30 in myeloid cells (LysM-Cre) impairs osteoclast differentiation and suppresses osteoclast activity, resulting in increased bone mass. Dpy30 deficiency decreases H3K4me3 enrichment at the NFATc1 promoter, thereby reducing NFATc1 expression and osteoclast-related gene transcription. |
Conditional knockout mouse (Dpy30F/F; LysM-Cre), bone histomorphometry, ex vivo osteoclast differentiation assays, ChIP for H3K4me3 at NFATc1 promoter |
Bone |
Medium |
35307321
|
| 2023 |
DPY30 promotes colorectal cancer cell proliferation and cell cycle progression by facilitating H3K4me3 deposition on the promoters of PCNA, Ki67, and Cyclin A2, thereby driving their transcription. DPY30 knockdown induces S-phase cell cycle arrest with downregulation of Cyclin A2. |
siRNA knockdown, ChIP assay for H3K4me3 at target promoters, RNA-seq, in vitro and in vivo proliferation assays |
International journal of medical sciences |
Medium |
37324189
|
| 2018 |
DPY30 regulated H3K4me3 recruitment controls expression of Hif1α and targeted glycolytic genes. DPY30 also promotes H3K9Ac recruitment via inhibiting SIRT6 occupancy on glycolytic gene promoters, linking DPY30 to glucose homeostasis through coordinated epigenetic regulation. |
ChIP assay for H3K4me3 and H3K9Ac at gene promoters, SIRT6 occupancy measurement, knockdown experiments |
Biochemical and biophysical research communications |
Low |
30448059
|
| 2022 |
BPA exposure decreases DPY30 expression, which reduces H3K4me3 recruitment at the PIK3CA transcriptional start site, attenuating PI3K/AKT signaling in spermatogonial cells. Adenovirus-mediated DPY30 overexpression rescues PI3K/AKT activity, restores H3K4me3 at the PIK3CA TSS, and promotes DPY30 localization to round and elongated spermatids for energy accumulation. |
ChIP assay for H3K4me3 at PIK3CA TSS, adenoviral DPY30 overexpression rescue, in vitro cell proliferation assays, in vivo mouse model |
Ecotoxicology and environmental safety |
Low |
36030680
|
| 2023 |
DPY30 promotes CRC metastasis by increasing H3K4me3 levels at the ZEB1 promoter, thereby upregulating ZEB1 transcription and driving EMT. DPY30 knockdown reduces ZEB1 expression, suppresses EMT markers, and impairs in vitro migration/invasion and in vivo lung metastasis. |
ChIP assay for H3K4me3 at ZEB1 promoter, siRNA knockdown, in vitro migration/invasion assays, in vivo lung metastasis xenograft model |
Cancer cell international |
Low |
38115111
|
| 2024 |
DPY30 knockdown in colorectal cancer cells promotes MST2-induced apoptosis by inhibiting Raf1 transcriptional activity through reduction of H3K4me3 at the Raf1 promoter, establishing a DPY30/Raf1/MST2 apoptosis signaling axis. |
RNA-seq, ChIP assay for H3K4me3 at Raf1 promoter, siRNA knockdown, caspase activation assays, xenograft mouse model |
Heliyon |
Low |
38314299
|
| 2026 |
DPY30 (as part of the WRAD/COMPASS complex) localizes to stressed DNA replication forks and promotes H3K4me3 deposition at these sites to safeguard DNA replication stability. Loss of DPY30 destabilizes stalled replication forks causing fork degradation, chromosomal instability, and inflammation without reducing cancer cell proliferation, and induces T-cell infiltration that sensitizes PDAC tumors to immune checkpoint blockade. |
ChIP-seq for H3K4me3 at replication forks, DNA fiber assay for fork stability, chromosomal instability analysis, immunocompetent mouse PDAC models, anti-PD-1 treatment experiments, patient RNA-seq correlation |
Cancer research |
Medium |
41941748
|
| 2024 |
DPY30 knockdown in colorectal cancer cells attenuates aerobic glycolysis and reduces H3K4me3 on promoters of glycolytic genes HK1, PFKL, and ALDOA, while also broadly altering the PI3K-AKT signaling pathway as revealed by proteomic analysis. |
Knockdown + TMT-labeled quantitative proteomics, Seahorse ECAR glycolysis assay, ChIP for H3K4me3 at HK1/PFKL/ALDOA promoters |
Translational cancer research |
Low |
39262496
|
| 2022 |
DPY30 silencing by siRNA in melanoma cells significantly inhibits PD-L1 expression. ChIP analysis reveals H3K4me3 is enriched at the proximal PD-L1 promoter in tumor cells, and DPY30 knockdown reduces this enrichment. DPY30 knockdown also reduces apoptosis of PD1+ T-cells in co-culture. |
siRNA knockdown, ChIP for H3K4me3 at PD-L1 promoter, RT-PCR, flow cytometry, co-culture apoptosis assay |
Journal of inflammation research |
Low |
36185638
|
| 2010 |
A genomic deletion in a Japanese SPG4 family removes exons 1–3 of DPY30 in addition to exons 1–4 of SPAST (~70 kb deletion), demonstrating that DPY30 is located immediately upstream of SPAST in a head-to-head orientation and that partial heterozygous deletion of DPY30 may modify SPG4 clinical phenotype. |
Real-time quantitative PCR for exonic copy number, breakpoint mapping by sequencing |
Neurogenetics |
Low |
20857310
|