期刊
CURRENT OPINION IN STRUCTURAL BIOLOGY
卷 20, 期 6, 页码 714-721出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.sbi.2010.08.010
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资金
- National Institutes of Health [R01 CA107134, F32 GM093497, R01 GM069530]
- Burroughs Wellcome Fund
- National Science Foundation
- ALSAC
- NATIONAL CANCER INSTITUTE [R01CA107134] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM069530, F32GM093497] Funding Source: NIH RePORTER
The cullin-RING ubiquitin ligases (CRLs) are the largest family of multi-subunit E3 ligases in eukaryotes, which ubiquitinate protein substrates in numerous cellular pathways. CRLs share a common arched scaffold and a RING domain catalytic subunit, but use different adaptors and substrate receptors to assemble unique E3 machineries. In comparison to the first CRL structure, recent findings have revealed increased complexity in the overall architecture and assembly mode of CRLs, including multi-domain organization, inter-domain flexibility, and subunit dimerization. These features highlight the capacity of CRLs to catalyze protein ubiquitination under distinct cellular contexts and in response to diverse signals. As the first installment of a two-review series, this article will focus on recent advances in our understanding of CRL assembly mechanisms.
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