Related Experiment Video

Updated: Jul 20, 2026

Functional Characterization of RING-Type E3 Ubiquitin Ligases In Vitro and In Planta
10:27

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

Published on: December 5, 2019

Novel RING E3 ubiquitin ligases in breast cancer

Angelika Burger1, Yutaka Amemiya, Richard Kitching

  • 1Sunnybrook Research Institute and Department of Anatomic Pathology, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada.

Neoplasia (New York, N.Y.)
|August 24, 2006
PubMed

Insights

Defects in ubiquitin E3 ligases contribute to diseases like cancer. This study identifies two novel RING E3 ligases, BCA2 and RNF11, as potential therapeutic targets for breast cancer.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Ubiquitin E3 ligases are crucial for controlling cell signaling pathways and are implicated in human diseases, including cancer.
  • RING E3 ligases specifically regulate protein ubiquitination, a key process in cellular events.
  • Understanding the roles of specific E3 ligases is vital for developing targeted cancer therapies.

Purpose of the Study:

  • To identify and characterize novel RING E3 ligases involved in human breast cancer pathogenesis.
  • To investigate the roles of BCA2 and RNF11 in breast cancer signaling pathways.

Main Methods:

  • The study focuses on discussing the known functions and implications of BCA2 and RNF11.
  • Literature review and analysis of existing data on BCA2 and RNF11 in relation to breast cancer.

Main Results:

  • BCA2 E3 ligase is co-regulated with the estrogen receptor and influences epidermal growth factor receptor (EGF-R) trafficking.
  • RNF11, a small RING E3 ligase, impacts transforming growth factor-beta and EGF-R signaling and is overexpressed in invasive breast cancers.

Conclusions:

  • BCA2 and RNF11 are novel RING E3 ligases implicated in human breast cancer.
  • These ligases highlight the complexity of E3 ligase interactions in breast cancer.
  • BCA2 and RNF11 represent potential therapeutic targets for breast cancer intervention.

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