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Series GSE112599 Query DataSets for GSE112599
Status Public on Oct 12, 2018
Title Genome-wide CRISPR-Cas9 interrogation of splicing networks reveals a mechanism for recognition of autism-misregulated neuronal microexons [CRISPR screen]
Organisms Mus musculus; synthetic construct
Experiment type Other
Summary Alternative splicing has critical roles in diverse cellular, developmental and pathological processes. However, the full repertoires of factors that control individual splicing events are not known. We describe a CRISPR-based screening strategy for the systematic identification of genes that control 3-27 nt microexons with functions in nervous system development and that are commonly disrupted in autism. Besides known regulators including nSR100/Srrm4, Rbfox and Ptbp1, approximately 200 additional genes impact microexon splicing. These genes are enriched in genetic links to autism. Two of the screen hits, Srsf11 and Rnps1, preferentially regulate Srrm4-dependent microexons relative to other exons. These factors form mutually stabilizing interactions with Srrm4 that bridge upstream intronic enhancer elements and exonic sequences to activate microexon splicing. Our study thus presents a system for the genome-wide definition of splicing regulatory networks and further reveals a mechanism for the recognition of microexons with critical roles in nervous system development and disorders.
 
Overall design sgRNA sequencing in N2A cells expressing a fluorescent splicing reporter and infected with a CRISPR loss-of-function library, unsorted cells or sorted based on reporter
 
Contributor(s) Gonatopoulos-Pournatzis T, Wu M, Braunschweig U, Roth J, Han H, Best A, Raj B, Aregger M, O'Hanlon D, Ellis JD, Calarco JA, Moffat J, Gingras A, Blencowe BJ
Citation(s) 30388412
Submission date Apr 02, 2018
Last update date Mar 25, 2019
Contact name Ulrich Braunschweig
Organization name University of Toronto
Department Donnelly Centre
Lab Benjamin J. Blencowe
Street address 160 College Street
City Toronto
State/province Ontario
ZIP/Postal code M5S 3E1
Country Canada
 
Platforms (2)
GPL19057 Illumina NextSeq 500 (Mus musculus)
GPL19424 Illumina NextSeq 500 (synthetic construct)
Samples (49)
GSM3073829 Brie library plasmid prep
GSM3073830 Shank2 splicing reporter, unsorted cells after infection (T0)
GSM3073831 Shank2 splicing reporter, unsorted cells, replicate 1 (T15)
This SubSeries is part of SuperSeries:
GSE112601 Genome-wide CRISPR-Cas9 interrogation of splicing networks reveals a mechanism for recognition of autism-misregulated neuronal microexons
Relations
BioProject PRJNA448435
SRA SRP136944

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
GSE112599_Counts_Mef2d_UB180328.tab.gz 3.2 Mb (ftp)(http) TAB
GSE112599_Counts_Shank2_UB180328.tab.gz 2.5 Mb (ftp)(http) TAB
GSE112599_Counts_Srrm4_UB180328.tab.gz 2.0 Mb (ftp)(http) TAB
GSE112599_MAGeCK.scores.xlsx 5.2 Mb (ftp)(http) XLSX
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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