Mertins, J.* ; Finke, J.* ; Sies, R.* ; Rink, K.M.* ; Hasenauer, J. ; Lang, T.*
The mesoscale organization of syntaxin 1A and SNAP25 is determined by SNARE-SNARE interactions.
eLife 10, 2624-2624 (2021)
SNARE proteins have been described as the effectors of fusion events in the secretory pathway more than two decades ago. The strong interactions between SNARE domains are clearly important in membrane fusion, but it is unclear whether they are involved in any other cellular processes. Here, we analyzed two classical SNARE proteins, syntaxin 1A and SNAP25. Although they are supposed to be engaged in tight complexes, we surprisingly find them largely segregated in the plasma membrane. Syntaxin 1A only occupies a small fraction of the plasma membrane area. Yet, we find it is able to redistribute the far more abundant SNAP25 on the mesoscale by gathering crowds of SNAP25 molecules onto syntaxin clusters in a SNARE-domain-dependent manner. Our data suggest that SNARE domain interactions are not only involved in driving membrane fusion on the nanoscale, but also play an important role in controlling the general organization of proteins on the mesoscale. Further, we propose these mechanisms preserve active syntaxin 1A-SNAP25 complexes at the plasma membrane.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Plasma Membrane ; Exocytosis ; Protein-nanoclustering ; Microdomains ; Rat; Plasma-membrane; Imaging Reveals; Lipid Rafts; Complex; Snap-25; Proteins; Exocytosis; Vesicle; Fusion; Synaptobrevin
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2021
Prepublished im Jahr
HGF-Berichtsjahr
2021
ISSN (print) / ISBN
2050-084X
e-ISSN
2050-084X
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 10,
Heft: 11,
Seiten: 2624-2624
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
eLife Sciences Publications
Verlagsort
Sheraton House, Castle Park, Cambridge, Cb3 0ax, England
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
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Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30205 - Bioengineering and Digital Health
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-553800-001
Förderungen
Deutsche Forschungsgemeinschaft
Copyright
Erfassungsdatum
2021-12-17