Diagenode

A cohesin-OCT4 complex mediates Sox enhancers to prime an early embryonic lineage.


Abboud N, Moore-Morris T, Hiriart E, Yang H, Bezerra H, Gualazzi MG, Stefanovic S, Guénantin AC, Evans SM, Pucéat M

Short- and long-scales intra- and inter-chromosomal interactions are linked to gene transcription, but the molecular events underlying these structures and how they affect cell fate decision during embryonic development are poorly understood. One of the first embryonic cell fate decisions (that is, mesendoderm determination) is driven by the POU factor OCT4, acting in concert with the high-mobility group genes Sox-2 and Sox-17. Here we report a chromatin-remodelling mechanism and enhancer function that mediate cell fate switching. OCT4 alters the higher-order chromatin structure at both Sox-2 and Sox-17 loci. OCT4 titrates out cohesin and switches the Sox-17 enhancer from a locked (within an inter-chromosomal Sox-2 enhancer/CCCTC-binding factor CTCF/cohesin loop) to an active (within an intra-chromosomal Sox-17 promoter/enhancer/cohesin loop) state. SALL4 concomitantly mobilizes the polycomb complexes at the Soxs loci. Thus, OCT4/SALL4-driven cohesin- and polycombs-mediated changes in higher-order chromatin structure mediate instruction of early cell fate in embryonic cells.

Tags
Antibody
H3K4me3 (C15410003)
H3K27me3 (C15410195)

Share this article

Published
April, 2015

Source

Products used in this publication

  • cut and tag antibody icon
    C15410195
    H3K27me3 Antibody - ChIP-seq Grade
  • cut and tag antibody icon
    C15410003-50
    H3K4me3 Antibody - ChIP-seq Grade

活动

  • IHEC Annual meeting 2022
    Quebec, Canada
    Oct 4-Oct 7, 2022
  • Danish RNA Society's 7th Annual Meeting on RNA
    Aarhus, Denmark
    Oct 11, 2022
  • ASHG 2022
    Los Angeles, California, USA
    Oct 25-Oct 29, 2022
  • International Conference on Epigenetics and Bioengineering 2022
    Houston, Texas, USA
    Oct 27-Oct 29, 2022
  • Long-Read Sequencing Meeting Uppsala LRUA22 Meeting
    Uppsala, Sweden
    Oct 31-Nov 2, 2022
  • Association for Molecular Pathology 2022
    Phoenix, Arizona, USA
    Nov 1-Nov 5, 2022
 查看所有活动

新闻

 查看所有新闻


The European Regional Development Fund and Wallonia are investing in your future.

Extension of industrial buildings and new laboratories.


       Site map   |   Contact us   |   Conditions of sales   |   Conditions of purchase   |   Privacy policy   |   Diagenode Diagnostics