Molecular Analysis of BRCA1 in Human Breast Cancer Cells Under Oxidative Stress.

Abstract:

:The precise manner in which physical changes to the breast cancer susceptibility protein (BRCA1) affect its role in DNA repair events remain unclear. Indeed, cancer cells harboring mutations in BRCA1 suffer from genomic instability and increased DNA lesions. Here, we used a combination of molecular imaging and biochemical tools to study the properties of the BRCA1 in human cancer cells. Our results reveal new information for the manner in which full-length BRCA1 engages its binding partner, the BRCA1-associated Ring Domain protein (BARD1) under oxidative stress conditions. We also show how physical differences between wild type and mutated BRCA15382insC impact the cell's response to oxidative damage. Overall, we demonstrate how clinically relevant changes to BRCA1 affect its structure-function relationship in hereditary breast cancer.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Gilmore BL,Liang Y,Winton CE,Patel K,Karageorge V,Varano AC,Dearnaley W,Sheng Z,Kelly DF

doi

10.1038/srep43435

subject

Has Abstract

pub_date

2017-03-06 00:00:00

pages

43435

issn

2045-2322

pii

srep43435

journal_volume

7

pub_type

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