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Oncogenic ZMYND11-MBTD1 fusion protein anchors the NuA4/TIP60 histone acetyltransferase complex to the coding region of active genes

ABSTRACT: In this study, we characterize the fusion protein produced by the ZMYND11-MBTD1 translocation in acute myeloid leukemia. We express the fusion protein and necessary controls in K562 Cells. The fusion protein assembles ZMYND11 factor with the full acetyltransferase NuA4/TIP60 complex. The fusion protein leads to mislocalization NuA4/TIP60 complex in gene bodies, thereby increasing H4ac in specific gene targets. Finally, chromatin aberration is linked to aberrant gene expression and spliced isoforms.

ORGANISM(S): Homo sapiens

PROVIDER: GSE171673 | GEO | 2022/06/01

REPOSITORIES: GEO

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Oncogenic ZMYND11-MBTD1 fusion protein anchors the NuA4/TIP60 histone acetyltransferase complex to the coding region of active genes

Project description:A recurrent chromosomal translocation detected in cannibalistic acute myeloid leukemia leads to the production of a ZMYND11-MBTD1 fusion protein. - The ZMYND11-MBTD1 fusion protein is stably incorporated into the endogenous NuA4/TIP60 complex - ZMYND11-MBTD1 leads to mistargeting of NuA4-TIP60 activity to the coding region of ZMYND11-target genes, altering gene expression and transcript isoforms. - ZMYND11-MBTD1 binds the MYC gene leading to its upregulation, favoring growth and pluripotency while inhibiting differentiation markers.

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