Diagenode

ZNF354C is a transcriptional repressor that inhibits endothelialangiogenic sprouting.


Oo, James A and Irmer, Barnabas and Günther, Stefan and Warwick, Timothyand Pálfi, Katalin and Izquierdo Ponce, Judit and Teichmann, Tom andPflüger-Müller, Beatrice and Gilsbach, Ralf and Brandes, Ralf P andLeisegang, Matthias S

Zinc finger proteins (ZNF) are a large group of transcription factors with diverse functions. We recently discovered that endothelial cells harbour a specific mechanism to limit the action of ZNF354C, whose function in endothelial cells is unknown. Given that ZNF354C has so far only been studied in bone and tumour, its function was determined in endothelial cells. ZNF354C is expressed in vascular cells and localises to the nucleus and cytoplasm. Overexpression of ZNF354C in human endothelial cells results in a marked inhibition of endothelial sprouting. RNA-sequencing of human microvascular endothelial cells with and without overexpression of ZNF354C revealed that the protein is a potent transcriptional repressor. ZNF354C contains an active KRAB domain which mediates this suppression as shown by mutagenesis analysis. ZNF354C interacts with dsDNA, TRIM28 and histones, as observed by proximity ligation and immunoprecipitation. Moreover, chromatin immunoprecipitation revealed that the ZNF binds to specific endothelial-relevant target-gene promoters. ZNF354C suppresses these genes as shown by CRISPR/Cas knockout and RNAi. Inhibition of endothelial sprouting by ZNF354C is dependent on the amino acids DV and MLE of the KRAB domain. These results demonstrate that ZNF354C is a repressive transcription factor which acts through a KRAB domain to inhibit endothelial angiogenic sprouting.

Tags
Antibody
Beads

Share this article

Published
November, 2020

Source

Products used in this publication

  • cut and tag antibody icon
    C15410003-50
    H3K4me3 polyclonal antibody
  • Antibody ChIP icon
    C15200011
    H3pan monoclonal antibody 1B1B2
  • default alt
    C03010020-220
    DiaMag protein A-coated magnetic beads (ChIP-se...
  • default alt
    C03010021-220
    DiaMag protein G-coated magnetic beads (ChIP-se...

ニュース

 すべてのニュースを見る


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