Keywords :
Acetylation; Animals; Cell Movement/physiology; Histone Acetyltransferases/genetics/metabolism/physiology; Histones/metabolism; Humans; Mice; Nerve Tissue Proteins/genetics/metabolism/physiology; Neurodegenerative Diseases/genetics/metabolism; Transcription, Genetic; Tubulin/metabolism
Abstract :
[en] Elongator is an evolutionary highly conserved complex. At least two of its cellular functions rely on the intrinsic lysine acetyl-transferase activity of the elongator complex. Its two known substrates--histone H3 and alpha-tubulin--reflect the different roles of elongator in the cytosol and the nucleus. A picture seems to emerge in which nuclear elongator could regulate the transcriptional elongation of a subset of stress-inducible genes through acetylation of histone H3 in the promoter-distal gene body. In the cytosol, elongator-mediated acetylation of alpha-tubulin contributes to intracellular trafficking and cell migration. Defects in both functions of elongator have been implicated in neurodegenerative disorders.
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