Phosphorylation-dependent SUMOylation of the transcription factor NF-E2

Yee Fun Su; Yu Chiau Shyu; Che Kun James Shen; Jaulang Hwang

doi:10.1371/journal.pone.0044608

Phosphorylation-dependent SUMOylation of the transcription factor NF-E2

Yee Fun Su, Yu Chiau Shyu, Che Kun James Shen, Jaulang Hwang

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Nuclear factor erythroid-derived 2 (NF-E2), a heterodimer composed of p45 and p18, is a transcriptional activator in hematopoietic progenitors. The transcriptional activity of NF-E2 is not only upregulated by SUMOylation but also stimulated by the cAMP-dependent protein kinase A (PKA). However, the relationship between SUMOylation and phosphorylation in the activation of NF-E2 is unclear. In the present studies, we have demonstrated that PKA enhances NF-E2 SUMOylation in an in vitro system using purified proteins, suggesting a possible mechanism for PKA-dependent activation of the NF-E2 transcription factor through SUMOylation.

Original language	English
Article number	e44608
Journal	PLoS One
Volume	7
Issue number	9
DOIs	https://doi.org/10.1371/journal.pone.0044608
Publication status	Published - Sep 10 2012

ASJC Scopus subject areas

Agricultural and Biological Sciences(all)
Biochemistry, Genetics and Molecular Biology(all)
Medicine(all)

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abstract = "Nuclear factor erythroid-derived 2 (NF-E2), a heterodimer composed of p45 and p18, is a transcriptional activator in hematopoietic progenitors. The transcriptional activity of NF-E2 is not only upregulated by SUMOylation but also stimulated by the cAMP-dependent protein kinase A (PKA). However, the relationship between SUMOylation and phosphorylation in the activation of NF-E2 is unclear. In the present studies, we have demonstrated that PKA enhances NF-E2 SUMOylation in an in vitro system using purified proteins, suggesting a possible mechanism for PKA-dependent activation of the NF-E2 transcription factor through SUMOylation.",

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AB - Nuclear factor erythroid-derived 2 (NF-E2), a heterodimer composed of p45 and p18, is a transcriptional activator in hematopoietic progenitors. The transcriptional activity of NF-E2 is not only upregulated by SUMOylation but also stimulated by the cAMP-dependent protein kinase A (PKA). However, the relationship between SUMOylation and phosphorylation in the activation of NF-E2 is unclear. In the present studies, we have demonstrated that PKA enhances NF-E2 SUMOylation in an in vitro system using purified proteins, suggesting a possible mechanism for PKA-dependent activation of the NF-E2 transcription factor through SUMOylation.

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