PXD059392-1

PXD059392 is an original dataset announced via ProteomeXchange.

Title	G3BP1 Ribonucleoprotein Complexes Regulate Focal Adhesion Protein Mobility and Cell Migration
Description	The subcellular localization of mRNAs plays a pivotal role in biological processes, including cell migration1-6. For instance, β-actin mRNA and its associated RNA binding protein (RBP), ZBP1/IGF2BP1, are recruited to focal adhesions (FAs), to support localized β-actin synthesis, crucial for cell migration7-9. However, whether other mRNAs and RBPs also localize at FAs remains unclear. Here, we identify hundreds of mRNAs that are enriched at FAs (FA-mRNAs). FA-mRNAs share characteristics with stress granule (SG) mRNAs and are found in ribonucleoprotein (RNP) complexes with the SG RBP. Mechanistically, G3BP1 binds to FA proteins in an RNA-dependent manner, and its RNA-binding and dimerization domains, essential for G3BP1 to form RNPs in SG10, are required for FA localization and cell migration. We find that G3BP1 RNPs promote cell speed by enhancing FA protein mobility and FA size. These findings suggest a previously unappreciated role for G3BP1 RNPs in regulating FA function under non-stress conditions.
HostingRepository	PRIDE
AnnounceDate	2025-01-22
AnnouncementXML	Submission_2025-01-22_11:31:39.787.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Liana Boraas
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	No PTMs are included in the dataset
Instrument	6410 Triple Quadrupole LC/MS

Revision	Datetime	Status	ChangeLog Entry
0	2025-01-02 11:23:17	ID requested
⏵ 1	2025-01-22 11:31:40	announced

Dataset with its publication pending

submitter keyword: LC-MS

Liana Boraas
contact affiliation	Yale University
contact email	liana.boraas@yale.edu
lab head
Liana Boraas
contact affiliation	Yale University
contact email	liana.boraas@yale.edu
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD059392
     1. Label: PRIDE project
     2. Name: G3BP1 Ribonucleoprotein Complexes Regulate Focal Adhesion Protein Mobility and Cell Migration