Transcriptomics,Genomics

Dataset Information

298

Genome wide profiling of the RNAPII, γH2AX, H3K4Me1, H3K4M2 and H3K4Me3 in MLL2 F/F and FC/FC MEF cells


ABSTRACT: We investigated the RNAPII and γH2AX occupancy genome wide by ChIP-Seq in MLL2 F/F and FC/FC80 MEF cells. We found that a week after MLL2 excision (FC/FC cells), a group of genes present higher levels of γH2AX and RNAPII near the TSS, as compared to the control (F/F cells). H3K4Me1, H3K4M2 and H3K4Me3 levels near the TSS were also studied. There is a total of 52 samples. 3 independent replicates for each experiment were performed. H3, H2AX and IgG ChIPs were used for normalisation or as controls.The experiments were performed using immortalised mouse embryonic fibroblasts (MEF) in which both MLL2 alleles were targeted by the loxp system (F/F cells). Tamoxifen treatment of the F/F cells for 24 hours results in the excision of both MLL2 alleles (FC/FC cells).

ORGANISM(S): Mus musculus  

SUBMITTER: Jesper Q Svejstrup   Theodoros Kantidakis  Theo Kantidakis 

PROVIDER: E-GEOD-73124 | ArrayExpress | 2016-04-13

SECONDARY ACCESSION(S): SRP063844GSE73124PRJNA296118

REPOSITORIES: GEO, ArrayExpress, ENA

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Publications


Genome instability is a recurring feature of tumorigenesis. Mutation in MLL2, encoding a histone methyltransferase, is a driver in numerous different cancer types, but the mechanism is unclear. Here, we present evidence that MLL2 mutation results in genome instability. Mouse cells in which MLL2 gene deletion can be induced display elevated levels of sister chromatid exchange, gross chromosomal aberrations, 53BP1 foci, and micronuclei. Human MLL2 knockout cells are characterized by genome instabi  ...[more]

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