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MLL1 and MLL fusion proteins play distinct roles in regulating MLLleukemic transcription program [ChIP-Seq]

ABSTRACT: This study describes the epigenetic profiling change of 1.) Mll1, WDR5 and H3K4me2 in mouse MAF9 leukemia cells treated with or without MM401; 2.) WDR5 and H3K4me2 epigenetic profiling in MLL1 flox/flox, ER-Cre+/- cells with knocking out MLL1 by 4OHT or not.

ORGANISM(S): Mus musculus

PROVIDER: GSE68821 | GEO | 2016/05/12

SECONDARY ACCESSION(S): PRJNA283891

REPOSITORIES: GEO

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ChIP-chip of siGFP- or siHOTTIP-treated foreskin fibroblasts with anti-H3K4me3, anti-H3K27me3, anti-H3K4me2, anti-histone, anti-MLL1, and anti-WDR5 antibodies on HOX tiling array

Project description:Coordinate loss of MLL1 and WDR5 occupancy caused by HOTTIP knockdown were observed in distal HOXA genes. These regions correspondingly lost H3K4me3 and H3K4me2, without changes in pan-histone or H3K27me3. human foreskin fibroblasts (CRL2091), anti-H3K4me3 (Abcam ab8580, lot#1016899), anti-H3K4me2 (Abcam ab32356, lot#947550), anti-H3K27me3 (Abcam ab4729, lot#1021724), anti-histone H3 (Abcam ab1791, lot#1025144), anti-MLL1 (gift of R. Roeder, Rockefeller University), and anti-WDR5 (gift of W. Herr, UNIL) Comparison of occupancy of MLL1 and WDR5 of siGFP and siHOTTIP foreskin fibroblasts on HOX tiling array. Human foreskin fibroblasts are transfected with siGFP or siHOTTIP for 72 hrs. The cells are harvesed and ChIP performed with H3K4me3, H4K27me3, H3K4me2, MLL1, WDR5, and histone antibodies.

2011-03-21 | E-GEOD-26540 | biostudies-arrayexpress

MLL1 and MLL fusion proteins play distinct roles in regulating MLLleukemic transcription program [RNA-Seq]

Project description:This study describes the transcriptome profiling of: 1) MM-401, a MLL1 specific inhibitor in MAF9 cells; 2) Comparation of the transcriptone profilings of MM-401,EPZ-5676 (Dot1L inhibitor), MI-2(Menin inhibitor) and iBET(Brd4 inhibitor) in MAF9 leukemia cells.

2016-05-12 | GSE68822 | GEO

ChIP-chip of siGFP- or siHOTTIP-treated foreskin fibroblasts with anti-H3K4me3, anti-H3K27me3, anti-H3K4me2, anti-histone, anti-MLL1, and anti-WDR5 antibodies on HOX tiling array

2011-03-21 | GSE26540 | GEO

Genome binding/occupancy profiling of Mll1 in mouse embryo stem cells

Project description:This study describes the epigenetic profiling of Mll1 in mouse ES cells cultures in LIF/serum/feeder-free condition. ChIP-Seq profile of Mll1 was generated in E14Tg2a (E14) mESCs. A sequence profile of genomic DNA (Input) is also included.

2016-02-19 | E-GEOD-66111 | biostudies-arrayexpress

Genome profiling of Mll1 binding and H3K4me distribution in mouse embryo stem cells

Project description:This study describes the epigenetic profiling of Mll1 and H3K4me1/2/3 in mouse ES cells with or without MLL1 inhibition/deletion

2019-12-02 | GSE107406 | GEO

Profiling of Mll1 in mouse epiblast stem cells and H3K4me1/3

Project description:This study describes the epigenetic profiling of 1) Mll1 in mouse EpiSCs with or without MM401 tratment and 2) H3K4me1 and H3K4me3 in MM401 trated EpiSCs.

2016-05-21 | GSE73992 | GEO

Unannotated microprotein EMBOW switches WDR5 between epigenetic and mitotic roles during cell cycle

Project description:The highly conserved WD40-repeat protein WDR5 is part of multiple functional complexes both inside and outside the nucleus, interacting with the MLL/SET1 histone methyltransferases that catalyze histone H3 lysine 4 (H3K4) di- and tri-methylation (me2,3), and KIF2A, a member of the Kinesin-13 family of microtubule depolymerase. It is currently unclear whether, and how, the distribution of WDR5 between complexes is regulated. Here, we show that an unannotated microprotein dually encoded in the human SCRIB gene regulates the association of WDR5 with epigenetic and KIF2A complexes. We propose to name this alt-protein EMBOW, or microprotein that is the epigenetic to mitotic binder of WDR5. Loss of EMBOW decreases WDR5 interaction with KIF2A, displaces WDR5 from the spindle pole during G2/M phase, and shortens the spindle length, hence prolonging G2/M phase and delaying cell proliferation. On the other hand, loss of EMBOW increases WDR5 interaction with epigenetic complexes, including KMT2A/MLL1, and promotes WDR5 association with chromatin and binding to the target genes, hence increasing H3K4me3 levels of target genes. Together, these results implicate EMBOW as a regulator of WDR5 that switches it between epigenetic and mitotic regulatory roles during cell cycle, explaining how mammalian cells can temporally control the multifunctionality of WDR5.

2023-09-19 | PXD036699 | Pride

Transcriptome of ESCs upon MLL1 inhibition/deletion

Project description:This study describes the transcriptome profiling of: 1) Mll1fl/fl mESCs in LIF/Serum medium as control; 2) Mll1fl/fl mESCs with 4-OHT (Mll1-/-), MM-401 (Mll1i) in LIF/serum medium ; 2) Mll1fl/fl mESCs with 2i in LIF/serum-free (KSR) medium.

2019-12-02 | GSE107407 | GEO

Single cell transcriptome of ESCs upon MLL1 inhibition/deletion

Project description:This study describes the single-cell transcriptome profiling of: 1) Mll1fl/fl mESCs as control; 2) Mll1fl/fl mESCs with 4-OHT (Mll1-/-) or with MM-401 (Mll1i) in LIF/15KSR/5% serum KO DMEM medium on Matrigel.

2019-12-02 | GSE127943 | GEO

Nuclear-localized HKDC1 promotes hepatocellular carcinoma through phosphorylating RBBP5 to activate H3K4me3

Project description:Histone methyltransferases KMT2A (also known as mixed lineage leukemia 1, MLL1) can convert H3K4me1 to H3K4me2 with limited activity. However, it fully trimethylates H3K4 when associated with core subunits, including WDR5, RBBP5, ASH2L, and DPY30. We demonstrated that HKDC1 binds and phosphorylates RBBP5, promoting the assembly of MLL1 complex and the activating H3K4me3. Here, we used CUT&Tag to study H3K4me3 levels of the promoter regions regulated by HKDC1 and RBBP5. We knocked down HKDC1 or RBBP5 in PLC cells and performed CUT&Tag assay.

2025-01-12 | GSE275531 | GEO

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