dateReleased: |
09-02-2014
|
description: |
Histone H3 lysine27-to-methionine (H3K27M) gain-of-function mutations occur in highly aggressive pediatric gliomas. Here, we establish a Drosophila animal model for the pathogenic histone H3K27M mutation and show that its overexpression resembles Polycomb repressive complex 2 (PRC2) loss-of-function phenotypes, causing de-repression of PRC2 target genes and developmental perturbations. Similarly, a H3K9M mutant depletes H3K9 methylation levels and suppresses position-effect variegation in various Drosophila tissues. The histone H3K9 demethylase KDM3B/JHDM2 associates with H3K9M nucleosomes and its overexpression in Drosophila results in loss of H3K9 methylation levels and heterochromatic silencing defects. Here we establish histone lysine-to-methionine mutants as robust in vivo tools for inhibiting methylation pathways that also function as biochemical reagents for capturing site-specific histone-modifying enzymes, thus providing molecular insight into chromatin-signaling pathways. RNA-seq of wing imaginal discs expressing either H3.3WT-FLAG-HA or H3.3K27M-FLAG-HA.
|
privacy: |
not applicable
|
aggregation: |
instance of dataset
|
ID: |
E-GEOD-59891
|
refinement: |
raw
|
alternateIdentifiers: |
59891
|
keywords: |
functional genomics
|
dateModified: |
12-10-2014
|
availability: |
available
|
types: |
gene expression
|
name: |
Drosophila melanogaster
|
accessURL: | https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-59891/E-GEOD-59891.raw.1.zip![]() |
storedIn: |
ArrayExpress
|
qualifier: |
gzip compressed
|
format: |
TXT
|
accessType: |
download
|
authentication: |
none
|
authorization: |
none
|
accessURL: | https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-59891/E-GEOD-59891.processed.1.zip |
storedIn: |
ArrayExpress
|
qualifier: |
gzip compressed
|
format: |
TXT
|
accessType: |
download
|
authentication: |
none
|
authorization: |
none
|
accessURL: | https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE59891 |
storedIn: |
Gene Expression Omnibus
|
qualifier: |
not compressed
|
format: |
HTML
|
accessType: |
landing page
|
primary: |
true
|
authentication: |
none
|
authorization: |
none
|
abbreviation: |
EBI
|
homePage: | http://www.ebi.ac.uk/ |
ID: |
SCR:004727
|
name: |
European Bioinformatics Institute
|
homePage: | https://www.ebi.ac.uk/arrayexpress/ |
ID: |
SCR:002964
|
name: |
ArrayExpress
|