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Water-Refined Solution Structure of the Human Grb7-SH2 Domain in Complex with the erbB2 Receptor Peptide pY1139

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We report a refinement in implicit water of the previously published solution structure of the Grb7-SH2 domain bound to the erbB2 receptor peptide pY1139. Structure quality measures indicate substantial improvement, with residues in the most favored regions of the Ramachandran plot increasing by 14 % and with WHAT IF statistics (Vriend, G. J. Mol. Graph., 1990, 8(1), 52-56) falling closer to expected values for well-refined structures.
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Keywords: Grb7 protein; Molecular dynamics simulations; NMR refinement; SH2 domain; breast cancer; focal adhesion kinase (FAK); ligand-bound Grb7-SH2 domain; signaling pathways; tumor tissues; water refinement

Document Type: Research Article

Publication date: 2012-08-01

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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