2021
HUWE1 employs a giant substrate-binding ring to feed and regulate its HECT E3 domain
GRABARCZYK, D.B., O.A. PETROVA, L. DESZCZ, R. KURZBAUER, P. MURPHY et. al.Základní údaje
Originální název
HUWE1 employs a giant substrate-binding ring to feed and regulate its HECT E3 domain
Autoři
GRABARCZYK, D.B., O.A. PETROVA, L. DESZCZ, R. KURZBAUER, P. MURPHY, J. AHEL, A. VOGEL, R. GOGOVA, V. FAAS, D. KORDIC, A. SCHLEIFFER, A. MEINHART, R. IMRE, A. LEHNER, J. NEUHOLD, G. BADER, P. STOLT-BERGNER, J. BOTTCHER, B. WOLKERSTORFER, G. FISCHER, I. GRISHKOVSKAYA, D. HASELBACH, D. KESSLER a T. CLAUSEN
Vydání
Nature Chemical Biology, BERLIN, NATURE PORTFOLIO, 2021, 1552-4450
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 16.174
Kód RIV
RIV/00216224:14740/21:00124444
Organizační jednotka
Středoevropský technologický institut
UT WoS
000675784100001
Klíčová slova anglicky
Animals; Caenorhabditis elegans; Caenorhabditis elegans Proteins; Fungal Proteins; Insecta; Microsporidia
Změněno: 23. 3. 2022 12:23, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
HUWE1 is a universal quality-control E3 ligase that marks diverse client proteins for proteasomal degradation. Although the giant HECT enzyme is an essential component of the ubiquitin-proteasome system closely linked with severe human diseases, its molecular mechanism is little understood. Here, we present the crystal structure of Nematocida HUWE1, revealing how a single E3 enzyme has specificity for a multitude of unrelated substrates. The protein adopts a remarkable snake-like structure, where the C-terminal HECT domain heads an extended alpha-solenoid body that coils in on itself and houses various protein-protein interaction modules. Our integrative structural analysis shows that this ring structure is highly dynamic, enabling the flexible HECT domain to reach protein targets presented by the various acceptor sites. Together, our data demonstrate how HUWE1 is regulated by its unique structure, adapting a promiscuous E3 ligase to selectively target unassembled orphan proteins.
Návaznosti
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