We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Reconstitution of the mitochondrial Hsp70 (mortalin)-p53 interaction using purified proteins – Identification of additional interacting regions
- Authors
Iosefson, Ohad; Azem, Abdussalam
- Abstract
Abstract: Previous studies have shown that the mammalian mitochondrial 70 kDa heat-shock protein (mortalin) can also be detected in the cytosol. Cytosolic mortalin binds p53 and by doing so, prevents translocation of the tumor suppressor into the nucleus. In this study, we developed a novel binding assay, using purified proteins, for tracking the interaction between p53 and mortalin. Our results reveal that: (i) P53 binds to the peptide-binding site of mortalin which enhances the ability of the former to bind DNA. (ii) An additional previously unknown binding site for mortalin exists within the C-terminal domain of p53. Structured summary: MINT-7557591: p53 (uniprotkb:P04637) binds (MI:0407) to DnaK (uniprotkb:P0A6Y8) by affinity chromatography technology (MI:0004) MINT-7557644: mortalin (uniprotkb:P38646) binds (MI:0407) to p53 (uniprotkb:P04637) by pull down (MI:0096) MINT-7557580, MINT-7557611: p53 (uniprotkb:P04637) binds (MI:0407) to mortalin (uniprotkb:P38646) by affinity chromatography technology (MI:0004)
- Subjects
HEAT shock proteins; POLYACRYLAMIDE gel electrophoresis; SPERMATOZOA; AFFINITY chromatography; BINDING sites; DNA; TUMOR suppressor proteins; CHROMOSOMAL translocation
- Publication
FEBS Letters, 2010, Vol 584, Issue 6, p1080
- ISSN
0014-5793
- Publication type
Article
- DOI
10.1016/j.febslet.2010.02.019