J 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.

Basic information

Original name

HUWE1 employs a giant substrate-binding ring to feed and regulate its HECT E3 domain

Authors

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 and T. CLAUSEN

Edition

Nature Chemical Biology, BERLIN, NATURE PORTFOLIO, 2021, 1552-4450

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 16.174

RIV identification code

RIV/00216224:14740/21:00124444

Organization unit

Central European Institute of Technology

UT WoS

000675784100001

Keywords in English

Animals; Caenorhabditis elegans; Caenorhabditis elegans Proteins; Fungal Proteins; Insecta; Microsporidia
Změněno: 23/3/2022 12:23, Mgr. Pavla Foltynová, Ph.D.

Abstract

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.

Links

90127, large research infrastructures
Name: CIISB II