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The 5S Subunit of Transcarboxylase Interacts with Free Biotin as Studied by Transferred-NOESY and Saturation Transfer Difference NMR

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The 5S subunit of transcarboxylase was expressed and purified. Recent methods of NMR spectroscopy as transferred NOESY, INPHARMA and Saturation Transfer Difference (STD) NMR were used to investigate ligand binding of free biotin to the 5S protein. The binding epitope for biotin is very similar to that obtained at the 12S subunit of transcarboxylase, however no common binding site for pyruvate and biotin exists.

Keywords: Biotin Protons; NMR titration; Propionibacterium shermanii; STD amplification factor; methylmalonyl CoA

Document Type: Research Article


Publication date: 2008-07-01

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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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