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Series GSE166423 Query DataSets for GSE166423
Status Public on Sep 01, 2021
Title 5-hydroxymethylcytosine is required for terminal differentiation of Purkinje neurons
Organism Mus musculus
Experiment type Expression profiling by high throughput sequencing
Genome binding/occupancy profiling by high throughput sequencing
Methylation profiling by high throughput sequencing
Summary Principal neurons in the mammalian brain exit cell cycle and execute a complex and prolonged differentiation program that continues into early adult life. Although high levels of 5-hydroxymethylcytosine (5hmC) accumulate in neurons, it is not known whether 5hmC can serve as an intermediate in DNA demethylation in postmitotic neurons. Here we report high resolution mapping of DNA methylation and hydroxymethylation, chromatin accessibility, and activating and repressive histone marks in developing postmitotic Purkinje cells (PCs). Our data reveal new relationships between PC transcriptional and epigenetic programs, and identify a class of late expressed genes that lose both 5mC and 5hmC during terminal differentiation. Deletion of the 5hmC writers Tet1, Tet2, and Tet3 from postmitotic Purkinje cells prevents loss of 5mC and 5hmC in regulatory domains and gene bodies and hinders transcriptional and epigenetic developmental transitions, resulting in hyper-excitability and increased susceptibility to excitotoxic drugs. Our data demonstrate that Tet-mediated active DNA demethylation occurs in vivo, and that acquisition of the precise molecular and electrophysiological properties of adult PCs requires continued oxidation of 5mC to 5hmC during the final phases of differentiation.
 
Overall design RNA-Seq, ATAC-Seq, ChIP-Seq, OxBS-Seq, BS-Seq
 
Contributor(s) Stoyanova E, Riad M, Rao A, Heintz N
Citation(s) 34919053
Submission date Feb 09, 2021
Last update date Jan 07, 2022
Contact name Elitsa Stoyanova
E-mail(s) estoyanova@rockefeller.edu
Organization name Rockefeller University
Department Molecular Biology
Lab Heintz
Street address 1230 York Ave
City NYC
State/province NY
ZIP/Postal code 10065
Country USA
 
Platforms (1)
GPL19057 Illumina NextSeq 500 (Mus musculus)
Samples (42)
GSM5070935 Purkinje cell p0 RNA-Seq WT rep1
GSM5070936 Purkinje cell p0 RNA-Seq WT rep2
GSM5070937 Purkinje cell p7 RNA-Seq WT rep1
Relations
BioProject PRJNA700864
SRA SRP305480

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE166423_ATAC-seq_broadPeaks.tar.gz 15.3 Mb (ftp)(http) TAR
GSE166423_ChIP-seq_broadPeaks.tar.gz 9.1 Mb (ftp)(http) TAR
GSE166423_OxBS-Seq_BS-Seq_bigWigs.tar.gz 1.6 Gb (ftp)(http) TAR
GSE166423_RAW.tar 1.2 Mb (http)(custom) TAR (of TXT)
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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