PXD072057-1

PXD072057 is an original dataset announced via ProteomeXchange.

Title	Crosstalk between and developmental dynamics of C. elegans Argonaute proteins
Description	Gene regulation via Argonaute-bound small RNAs is a broadly conserved mechanism, present in all domains of life. The nematode Caenorhabditis elegans expresses several worm-specific Argonautes (WAGOs), which interact with the small RNAs known as 22G-RNAs. These WAGOs have roles in gene regulation, transposon-defence as well as in viral control and experimentally induced RNA interference. Despite many studies, direct relationships between WAGO targeting, as defined by 22G RNA sequences, and mRNA abundance are not clear. Also, the effects of developmental stage and WAGO-interconnectivity have been under-studied thus far. We studied these aspects for two germline-expressed WAGO proteins, WAGO-1 and WAGO-3. We show that WAGO-1 mostly affects 22G-RNA expression in gravid adult worms, while WAGO-3 predominantly affects 22G-RNA expression in embryos. Furthermore, we detect a link between WAGO-3 and the maternal 26G-RNA pathway governed by the Argonaute protein ERGO-1, and between WAGO-1 and the paternal 26G-RNA pathway governed by the Argonautes ALG-3/4. We also demonstrate that, globally speaking, loss of WAGO-1 or WAGO-3 does not result in upregulation of their target mRNAs, as defined by 22G-RNA complementarity. Finally, metagene analysis of 22G-RNA profiles suggests loss of one WAGO protein leads to shifts in WAGO 22G-RNA binding. Overall, we conclude that WAGO-1 and WAGO-3 are developmentally dynamic, are embedded in distinct regulatory networks, and that potential silencing of individual mRNAs by these WAGO proteins is hard to assess by simple loss-of-function studies.
HostingRepository	PRIDE
AnnounceDate	2026-03-10
AnnouncementXML	Submission_2026-03-10_00:47:38.152.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	F Butter
SpeciesList	scientific name: Caenorhabditis elegans; NCBI TaxID: NEWT:6239;
ModificationList	No PTMs are included in the dataset
Instrument	Q Exactive Plus

Revision	Datetime	Status	ChangeLog Entry
0	2025-12-16 14:39:39	ID requested
⏵ 1	2026-03-10 00:47:38	announced

Dataset with its publication pending

submitter keyword: LC-MSMS

Falk Butter
contact affiliation	Institute of Molecular Biology (IMB), Mainz, Germany
contact email	f.butter@imb.de
lab head
F Butter
contact affiliation	Quantitative Proteomics Institute of Molecular Biology (IMB)
contact email	f.butter@imb-mainz.de
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD072057
     1. Label: PRIDE project
     2. Name: Crosstalk between and developmental dynamics of C. elegans Argonaute proteins