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Is Asparagine Deamidation in the Porcine Odorant-Binding Protein Related to the Odor Molecules Binding?

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Odorant-binding proteins are biomolecules belonging to the lipocalin family. Among all the odorant-binding proteins, the porcine odorant-binding protein has been well characterized. This protein is a monomer that is characterized by the presence of the β-barrel structure and of the disulphide bridge. The internal cavity of the β-barrel is the binding site. In this study we have investigated the structural properties of the porcine odorant-binding protein by mass spectrometry experiments. Our data allow us to hypothesize that specific deamidation mechanisms of specific amino acid residues can be responsible for the binding properties of this class of proteins

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Keywords: Deamidation; mass spectrometry; odorant molecules; odorant-binding protein

Document Type: Research Article

Publication date: 2008-09-01

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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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