Evidence for distinct functions for human DNA repair factors hHR23A and hHR23B

25Citations
Citations of this article
29Readers
Mendeley users who have this article in their library.

Abstract

Rad23 proteins bind ubiquitinated substrates and the proteasome, consistent with an important role in protein degradation. Although human Rad23 proteins (hHR23A and hHR23B) have redundant roles in DNA repair, we determined they formed distinct interactions with proteasomes and multiubiquitinated proteins, but similar binding to Ataxin-3. Threonine-79 contributed to the weak proteasome-binding property of hHR23A, and its conversion to proline (T79P), which is the residue present in hHR23B, increased proteasome interaction. We also determined that hHR23A and hHR23B could be co-purified with unique proteolytic and stress-responsive factors from human breast cancer tissues, indicating that they have unique functions in vivo. © 2006 Federation of European Biochemical Societies.

Cite

CITATION STYLE

APA

Chen, L., & Madura, K. (2006). Evidence for distinct functions for human DNA repair factors hHR23A and hHR23B. FEBS Letters, 580(14), 3401–3408. https://doi.org/10.1016/j.febslet.2006.05.012

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free