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H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [ChIP-seq]

ABSTRACT: H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [ChIP-seq]

PROVIDER: PRJNA1207984 | ENA |

REPOSITORIES: ENA

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H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program.

Project description:H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program.

| PRJNA1207978 | ENA

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [REPLIseq]

Project description:H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [REPLIseq]

| PRJNA1207985 | ENA

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [CUT&Tag]

Project description:H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [CUT&Tag]

| PRJNA1207987 | ENA

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [EdU-Huseq]

Project description:H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [EdU-Huseq]

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H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [RNA-seq]

Project description:H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [RNA-seq]

| PRJNA1207989 | ENA

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [REPLIseq]

Project description:Histone acetylation has widely been assumed to directly instruct gene activation. Among acetylated residues, H4K16ac is one of the most abundant modifications, conserved across all eukaryotes. Despite its established role in X-chromosome hyperactivation in Drosophila, its function in mammalian cells has remained elusive. Here, we show that in human somatic cells, H4K16ac does not regulate gene expression, but instead controls the spatiotemporal program of genome duplication. By combining a meta-analysis of public datasets and perturbation experiments free of confounding effects, we found that H4K16ac is neither associated with nor required for transcriptional activity. Rather, H4K16ac depletion resulted in premature replication of heterochromatic regions and widespread alterations in replication timing across the genome. These defects were driven by the aberrant activation of cryptic replication origins at long terminal repeats (LTRs)—repetitive elements typically marked by H4K16ac and whose sequence context resembles that of canonical origins in euchromatic regions. Our findings reveal an unexpected role for one of the most prevalent chromatin modifications and uncover a new regulatory mechanism that ensures accurate genome duplication.

2025-08-19 | GSE286133 | GEO

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [EdU-Huseq]

2025-08-19 | GSE286135 | GEO

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [ChIP-seq]

2025-08-19 | GSE286134 | GEO

H4K16ac is dispensable for mammalian transcriptional control but necessary for a faithful genome duplication program [CUT&Tag]

2025-08-19 | GSE286137 | GEO