Loss of Gcn5 acetyltransferase activity leads to neural tube closure defects and exencephaly in mouse embryos.

Abstract excerpt

Gcn5 was the first transcription-related histone acetyltransferase (HAT) to be identified. However, the functions of this enzyme in mammalian cells remain poorly defined. Deletion of Gcn5 in mice leads to early embryonic lethality with increased apoptosis in mesodermal lineages. Here we show that deletion of p53 allows Gcn5(-/-) embryos to survive longer, but Gcn5(-/-) p53(-/-) embryos still die in midgestation....

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