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Related Experiment Video

Updated: May 19, 2026

Using In Vitro Fluorescence Resonance Energy Transfer to Study the Dynamics Of Protein Complexes at a Millisecond Time Scale

Using In Vitro Fluorescence Resonance Energy Transfer to Study the Dynamics Of Protein Complexes at a Millisecond Time Scale

Published on: March 14, 2019

Cullin RING ligases: glommed by glomulin.

Ventzislava A Hristova¹, Daniel K Stringer, Allan M Weissman

¹Laboratory of Protein Dynamics and Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.

|August 14, 2012

Summary

Glomulin inhibits Cullin RING ligase 1 (CRL1) by blocking its interaction with ubiquitin-conjugating enzymes (E2). This discovery offers new insights into ubiquitin ligase regulation and potential therapeutic targets.

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Related Experiment Videos

Last Updated: May 19, 2026

Using In Vitro Fluorescence Resonance Energy Transfer to Study the Dynamics Of Protein Complexes at a Millisecond Time Scale

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Published on: March 14, 2019

Functional Characterization of RING-Type E3 Ubiquitin Ligases In Vitro and In Planta

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Published on: December 5, 2019

Utilization of Grafix for the Detection of Transient Interactors of Saccharomyces cerevisiae Spliceosome Subcomplexes

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Published on: November 9, 2020

Area of Science:

Biochemistry
Molecular Biology
Cellular Biology

Background:

Cullin RING ligases (CRLs) are a major class of E3 ubiquitin ligases essential for protein degradation.
Ubiquitin ligase activity is tightly regulated, involving interactions with various regulatory and substrate-targeting proteins.

Discussion:

Recent studies identify glomulin as a specific inhibitor of CRL1.
Glomulin functions by preventing the association between CRL1 and its cognate ubiquitin-conjugating enzyme (E2).

Key Insights:

Glomulin acts as a negative regulator of CRL1 activity.
This mechanism highlights a novel mode of CRL regulation, distinct from canonical substrate recruitment.

Outlook:

Understanding glomulin's inhibitory role can reveal new therapeutic strategies targeting CRL-mediated pathways.
Further research into glomulin-E2-CRL1 interactions may uncover broader implications in cellular processes regulated by ubiquitination.