Resonance assignment and secondary structure of the middle MA-3 domain and complete tandem MA-3 region of the tumour suppressor protein Pdcd4

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Abstract

Pdcd4 (Programmed Cell Death Protein 4) is a novel eukaryotic tumour suppressor protein, which is involved in the regulation of both transcription and translation (reviewed in Lankat-Buttgereit and Göke 2009). The protein contains two interacting MA-3 domains (MA-3M and MA-3C), which are linked by a short semi-flexible linker region (Waters et al. 2007; Suzuki et al. 2008). The MA-3 domains are involved in mediating specific protein-protein interactions with functional partners such as eIF4A (Yang et al. 2003 ). Here we report essentially complete backbone and side chain 15N, 13C and 1H assignments for a construct composed of the middle MA-3 domain and subsequent linker region (MA-3 M) and backbone assignments for the entire tandem MA-3 region of Pdcd4 (Pdcd4 MA-3M-C). Analysis of the backbone chemical shift data obtained indicates that Pdcd4 MA-3M contains eight helical regions corresponding to over 74% of the protein backbone and that Pdcd4 MA-3 M-C contains fifteen helical regions (72%). Comparison of the position of these helical regions with those observed in the crystal structures suggests that the solution and crystal structures of both proteins are very similar. © 2009 Springer Science+Business Media B.V.

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Waters, L. C., Oka, O., Muskett, F. W., Strong, S. L., Schmedt, T., Klempnauer, K. H., & Carr, M. D. (2010). Resonance assignment and secondary structure of the middle MA-3 domain and complete tandem MA-3 region of the tumour suppressor protein Pdcd4. Biomolecular NMR Assignments, 4(1), 49–53. https://doi.org/10.1007/s12104-009-9205-1

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