PXD035976 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Eps8, Arp2/3 and IRSp53 in TNT formation |
Description | Tunneling nanotubes (TNTs) connect distant cells and mediate cargo transfer for intercellular communication in physiological and pathological contexts. How the cell controls a common pool of proteins to generate these actin-mediated protrusions spanning length scales beyond those attainable by canonical filopodia remains unknown. Through a combination of surface micropatterning, microscopy and optical tweezer-based approaches, we found that Arp2/3-dependent pathways attenuate the extent with which actin polymerizes in nanotubes, limiting the formation and attainable lengths of TNTs. Upon Arp2/3 inhibition Epidermal growth factor receptor kinase substrate 8 (Eps8) exhibited heightened interactions with the inverted Bin/Amphiphysin/Rvs (I-BAR) domain protein IRSp53 resulting in increased TNTs. In these conditions, Eps8 interaction with proteins enhancing filament turnover and depolymerization were reduced. Our data reveals how common players in protrusions (Eps8 and IRSp53) drive outward linear actin extension to form TNTs, and that their interaction is enhanced when competing pathways overutilizing actin in branched Arp2/3 networks are inhibited, suggesting a shift in the equilibrium (and proteins usage) between branched and linear actin polymerization to form different cell protrusions. |
HostingRepository | PRIDE |
AnnounceDate | 2023-11-28 |
AnnouncementXML | Submission_2023-11-28_01:49:07.317.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | MARIETTE MATONDO |
SpeciesList | scientific name: Mus musculus (Mouse); NCBI TaxID: 10090; |
ModificationList | No PTMs are included in the dataset |
Instrument | Q Exactive HF |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2022-08-11 02:48:08 | ID requested | |
⏵ 1 | 2023-11-28 01:49:07 | announced | |
Publication List
Dataset with its publication pending |
Keyword List
submitter keyword: TNT EpS8 IRSp53 |
Contact List
Michael henderson |
contact affiliation | Institut Pasteur |
contact email | michael.henderson@pasteur.fr |
lab head | |
MARIETTE MATONDO |
contact affiliation | Pasteur |
contact email | mariette.matondo@pasteur.fr |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD035976
- Label: PRIDE project
- Name: Eps8, Arp2/3 and IRSp53 in TNT formation