Abstract
We have developed a surface plasmon resonance (SPR)-based immunocapture approach to study multimeric protein–protein complexes. A composition and spatial architecture of protein complexes that contained GST-tagged p53, p14ARF, and MDM2 was examined by the developed approach. Obtained results verified that the p53 protein possesses two binding sites for MDM2. Ternary complexes containing p14ARF, MDM2, and p53 proteins could only be formed when MDM2 protein functions as a bridging molecule. That was confirmed by immunoprecipitation and immunostaining.
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Swedish Cancer Society, a matching grant from the Concern Foundation (Los Angeles), the Cancer Research Institute (New York), Swedish Institute, and Swedish Foundation for Strategic Research supported this work.
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Andrej Savchenko and Mariya Yurchenko have contributed equally to this article.
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Savchenko, A., Yurchenko, M., Snopok, B. et al. Study on the Spatial Architecture of p53, MDM2, and p14ARF Containing Complexes. Mol Biotechnol 41, 270–277 (2009). https://doi.org/10.1007/s12033-008-9116-x
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DOI: https://doi.org/10.1007/s12033-008-9116-x