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Global site-specific neddylation profiling reveals that NEDDylated cofilin regulates actin dynamics.
Nat. Struct. Mol. Biol. 27, 210-220 (2020)
Neddylation is the post-translational protein modification most closely related to ubiquitination. Whereas the ubiquitin-like protein NEDD8 is well studied for its role in activating cullin−RING E3 ubiquitin ligases, little is known about other substrates. We developed serial NEDD8-ubiquitin substrate profiling (sNUSP), a method that employs NEDD8 R74K knock-in HEK293 cells, allowing discrimination of endogenous NEDD8- and ubiquitin-modification sites by MS after Lys-C digestion and K-εGG-peptide enrichment. Using sNUSP, we identified 607 neddylation sites dynamically regulated by the neddylation inhibitor MLN4924 and the de-neddylating enzyme NEDP1, implying that many non-cullin proteins are neddylated. Among the candidates, we characterized lysine 112 of the actin regulator cofilin as a novel neddylation event. Global inhibition of neddylation in developing neurons leads to cytoskeletal defects, altered actin dynamics and neurite growth impairments, whereas site-specific neddylation of cofilin at K112 regulates neurite outgrowth, suggesting that cofilin neddylation contributes to the regulation of neuronal actin organization.
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
2020
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
1545-9993
e-ISSN
1545-9985
Zeitschrift
Nature Structural & Molecular Biology
Quellenangaben
Band: 27,
Heft: 2,
Seiten: 210-220
Verlag
Nature Publishing Group
Verlagsort
New York, NY
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Developmental Genetics (IDG)
POF Topic(s)
30204 - Cell Programming and Repair
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-500500-001
Scopus ID
85079159229
PubMed ID
32015554
Erfassungsdatum
2020-04-08