PXD007665 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | GTSF-1 is required for the formation of an RNA-dependent RNA Polymerase complex in C. elegans |
Description | In every domain of life, Argonaute proteins and their associated small RNAs regulate gene expression. Despite great conservation of Argonaute proteins throughout evolution, there are not many other conserved proteins involved in small RNA pathways. Gametocyte-specific factor 1 (Gtsf1) proteins, characterized by two tandem CHHC zinc fingers and an unstructured, acidic C-terminal tail, represent one such conserved small RNA pathway component. In fly and mouse, they are required for fertility and have been shown to interact with Piwi clade Argonautes. We identified T06A10.3 as the Caenorhabditis elegans Gtsf1 homolog and named it gtsf-1. Given its conserved nature and roles in Piwi-mediated gene silencing, we sought out to characterize GTSF-1 in the context of the small RNA pathways of C. elegans. Like its homologs, GTSF-1 is required for normal fertility. Surprisingly, we report that GTSF-1 is not required for Piwi-mediated gene silencing. Instead, gtsf-1 mutants lack a class of endogenous small RNAs, known as 26G-RNAs, and fully phenocopy mutants lacking RRF-3, the RNA-dependent RNA Polymerase that synthesizes 26G-RNAs. We show, both in vivo and in vitro, that GTSF-1 specifically and robustly interacts with RRF-3 via its tandem CHHC zinc fingers. Furthermore, we demonstrate that GTSF-1 is required for the assembly of a larger RRF-3 and DCR-1-containing complex, also known as ERIC, thereby allowing for 26G-RNA generation. We propose that GTSF-1 homologs may similarly act to drive the assembly of larger complexes that subsequently act in small RNA production and/or in imposing small RNA-mediated silencing activities. |
HostingRepository | PRIDE |
AnnounceDate | 2018-05-11 |
AnnouncementXML | Submission_2018-05-11_04:36:02.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | F Butter |
SpeciesList | scientific name: Caenorhabditis elegans; NCBI TaxID: 6239; |
ModificationList | No PTMs are included in the dataset |
Instrument | Q Exactive |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2017-09-06 01:25:00 | ID requested | |
⏵ 1 | 2018-05-11 04:36:03 | announced | |
Publication List
Dataset with its publication pending |
Keyword List
curator keyword: Biological |
submitter keyword: IP, proteomics |
Contact List
Falk Butter |
contact affiliation | Institute of Molecular Biology (IMB) |
contact email | f.butter@imb-mainz.de |
lab head | |
F Butter |
contact affiliation | Dept. of Proteomics and Signal Transduction |
contact email | f.butter@imb-mainz.de |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2018/05/PXD007665 |
PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD007665
- Label: PRIDE project
- Name: GTSF-1 is required for the formation of an RNA-dependent RNA Polymerase complex in C. elegans