Post-translational modification localizes MYC to the nuclear pore basket to regulate a subset of target genes involved in cellular responses to environmental signals

Yulong Su, Carl Pelz, Tao Huang, Kristof Torkenczy, Xiaoyan Wang, Allison Cherry, Colin J. Daniel, Juan Liang, Xiaolin Nan, Mushui Dai, Andrew Adey, Soren Impey, Rosalie Sears

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The transcription factor MYC (also c-Myc) induces histone modification, chromatin remodeling, and the release of paused RNA polymerase to broadly regulate transcription. MYC is subject to a series of post-translational modifications that affect its stability and oncogenic activity, but how these control MYC's function on the genome is largely unknown. Recent work demonstrates an intimate connection between nuclear compartmentalization and gene regulation. Here, we report that Ser62 phosphorylation and PIN1-mediated isomerization of MYC dynamically regulate the spatial distribution of MYC in the nucleus, promoting its association with the inner basket of the nuclear pore in response to proliferative signals, where it recruits the histone acetyltransferase GCN5 to bind and regulate local gene acetylation and expression. We demonstrate that PIN1-mediated localization of MYC to the nuclear pore regulates MYC target genes responsive to mitogen stimulation that are involved in proliferation and migration pathways. These changes are also present at the chromatin level, with an increase in open regulatory elements in response to stimulation that is PIN1-dependent and associated with MYC chromatin binding. Taken together, our study indicates that post-translational modification of MYC controls its spatial activity to optimally regulate gene expression in response to extrinsic signals in normal and diseased states.

Original languageEnglish (US)
Pages (from-to)1398-1419
Number of pages22
JournalGenes & development
Volume32
Issue number21-22
DOIs
StatePublished - Nov 1 2018

Fingerprint

Nuclear Pore
Post Translational Protein Processing
Chromatin
Histone Code
Gene Expression
Chromatin Assembly and Disassembly
Response Elements
DNA-Directed RNA Polymerases
Acetylation
Mitogens
Genes
Transcription Factors
Phosphorylation
Genome
human KAT2A protein

Keywords

  • GCN5
  • MYC
  • nuclear pore complex
  • PIN1
  • Ser62 phosphorylation
  • transcriptional regulation

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology

Cite this

Post-translational modification localizes MYC to the nuclear pore basket to regulate a subset of target genes involved in cellular responses to environmental signals. / Su, Yulong; Pelz, Carl; Huang, Tao; Torkenczy, Kristof; Wang, Xiaoyan; Cherry, Allison; Daniel, Colin J.; Liang, Juan; Nan, Xiaolin; Dai, Mushui; Adey, Andrew; Impey, Soren; Sears, Rosalie.

In: Genes & development, Vol. 32, No. 21-22, 01.11.2018, p. 1398-1419.

Research output: Contribution to journalArticle

Su, Yulong ; Pelz, Carl ; Huang, Tao ; Torkenczy, Kristof ; Wang, Xiaoyan ; Cherry, Allison ; Daniel, Colin J. ; Liang, Juan ; Nan, Xiaolin ; Dai, Mushui ; Adey, Andrew ; Impey, Soren ; Sears, Rosalie. / Post-translational modification localizes MYC to the nuclear pore basket to regulate a subset of target genes involved in cellular responses to environmental signals. In: Genes & development. 2018 ; Vol. 32, No. 21-22. pp. 1398-1419.
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