Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Genome-wide map of lysine specific demethylase 1 (LSD1) in mouse embryonic stem cells.

ABSTRACT: We report the identification of LSD1 binding genomic regions in mouse embryonic stem cells (ESC) by high throughput sequencing. By obtaining over 10 million 36 bp reads of sequence from each chromatin immunoprecipitated DNA, we generated genome-wide maps for LSD1 and histone H3 dimethylated on lysine 4 (H3K4me2), the substrate for LSD1 in mouse ESCs. Our results showed an extensive overlap between the LSD1 and H3K4me2 genomic regions and a correlation between the genomic levels of LSD1/H3K4me2 and gene expression, including many highly expressed ESC genes. LSD1 is recruited to the chromatin of cells in the G1/S/G2 phases and is displaced from the chromatin of M phase cells, suggesting that LSD1 or H3K4me2 alternatively occupies LSD1 genomic regions during cell cycle progression. LSD1 knockdown by RNA interference or its displacement from the chromatin by anti-neoplastic agents caused an increase in the levels of a subset of LSD1 target genes. Taken together, these results suggest that cell-cycle dependent association and dissociation of LSD1 with chromatin mediates short-time scale gene expression changes during ES cell cycle progression. Examination of LSD1 and lysine 4 dimethylated histone H3 (H3K4me2) binding genomic regions in embryonic stem cells. Input genomic DNA and DNA immunoprecipitaed with control IgG was included as controls.

ORGANISM(S): Mus musculus

SUBMITTER: Venugopalan Nair

PROVIDER: E-GEOD-18515 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Involvement of histone demethylase LSD1 in short-time-scale gene expression changes during cell cycle progression in embryonic stem cells.

Nair Venugopalan D VD Nair Venugopalan D VD Ge Yongchao Y Balasubramaniyan Natarajan N Kim Jaeyun J Okawa Yuya Y Chikina Maria M Troyanskaya Olga O Sealfon Stuart C SC

Molecular and cellular biology 20121001 23

The histone demethylase LSD1, a component of the CoREST (corepressor for element 1-silencing transcription factor) corepressor complex, plays an important role in the downregulation of gene expression during development. However, the activities of LSD1 in mediating short-time-scale gene expression changes have not been well understood. To reveal the mechanisms underlying these two distinct functions of LSD1, we performed genome-wide mapping and cellular localization studies of LSD1 and its dimet ...[more]

PMID: 23028048

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Dataset Information

Genome-wide map of lysine specific demethylase 1 (LSD1) in mouse embryonic stem cells.

Publications

Involvement of histone demethylase LSD1 in short-time-scale gene expression changes during cell cycle progression in embryonic stem cells.

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