S100 proteins interact with the N-terminal domain of MDM2

被引:38
作者
van Dieck, Jan [1 ]
Lum, Jenifer K. [1 ]
Teufel, Daniel P. [1 ]
Fersht, Alan R. [1 ]
机构
[1] MRC Ctr Prot Engn, Cambridge CB2 0QH, England
基金
英国医学研究理事会;
关键词
S100; p53; MDM2; Ternary complex; Protein-protein interaction; CALCIUM-BINDING PROTEIN; TUMOR-SUPPRESSOR PROTEIN; TRANSCRIPTIONAL ACTIVITY; P53; FAMILY; OLIGOMERIZATION; METASTASIS; MODULATION; TARGETS; CANCER;
D O I
10.1016/j.febslet.2010.06.024
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
S100 proteins interact with the transactivation domain and the C-terminus of p53. Further, S100B has been shown to interact with MDM2, a central negative regulator of p53. Here, we show that S100B bound directly to the folded N-terminal domain of MDM2 (residues 2-125) by size exclusion chromatography and surface plasmon resonance experiments. This interaction with MDM2 (2-125) is a general feature of S100 proteins; S100A1, S100A2, S100A4 and S100A6 also interact with MDM2 (2-125). These interactions with S100 proteins do not result in a ternary complex with MDM2 (2-125) and p53. Instead, we observe the ability of a subset of S100 proteins to disrupt the extent of MDM2-mediated p53 ubiquitylation in vitro. Structured summary: MINT-7905256: MDM2 (uniprotkb:Q00987) binds (MI:0407) to s100A6 (uniprotkb:P06703) by surface plasmon resonance (MI:0107) MINT-7905063: MDM2 (uniprotkb:Q00987) and s100A1 (uniprotkb:P23297) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905376: s100A4 (uniprotkb:P26447) and MDM2 (uniprotkb:Q00987) physically interact (MI :0915) by competition binding (MI:0405) MINT-7905130: s100A6 (uniprotkb:P06703) and MDM2 (uniprotkb:Q00987) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905207: s100A6 (uniprotkb:P06703) and p53 (uniprotkb:P04637) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905043: s100B (uniprotkb:P04271) and MDM2 (uniprotkb:Q00987) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905196: p53 (uniprotkb:P04637) and s100A4 (uniprotkb:P26447) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905358: p53 (uniprotkb:P04637) and s100A4 (uniprotkb:P26447) physically interact (MI:0915) by fluorescence polarization spectroscopy (MI:0053) MINT-7905220: MDM2 (uniprotkb:Q00987) binds (MI:0407) to s100B (uniprotkb:P04271) by surface plasmon resonance (MI:0107) MINT-7905104: s100A4 (uniprotkb:P26447) and MDM2 (uniprotkb:Q00987) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905229: MDM2 (uniprotkb:Q00987) binds (MI:0407) to s100A1 (uniprotkb:P23297) by surface plasmon resonance (MI:0107) MINT-7905317, MINT-7905162: s100B (uniprotkb:P04271) and p53 (uniprotkb:P04637) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905238: MDM2 (uniprotkb:Q00987) binds (MI:0407) to s100A2 (uniprotkb:P29034) by surface plasmon resonance (MI:0107) MINT-7905174, M1NT-7905308: s100A1 (uniprotkb:P23297) and p53 (uniprotkb:P04637) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905247: MDM2 (uniprotkb:Q00987) binds (MI:0407) to s100A4 (uniprotkb:P26447) by surface plasmon resonance (MI:0107) MINT-7905090: s100A2 (uniprotkb:P29034) and MDM2 (uniprotkb:Q00987) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905142, MINT-7905326: MDM2 (uniprotkb:Q00987) and p53 (uniprotkb:P04637) bind (MI:0407) by molecular sieving (MI:0071) MINT-7905185, MINT-7905347: s100A2 (uniprotkb:P29034) and p53 (uniprotkb:P04637) bind (MI:0407) by molecular sieving (MI:0071) (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:3269 / 3274
页数:6
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