Volume 123, Issue 50 pp. 12158-12161
Zuschrift

Site-Specific pKa Determination of Selenocysteine Residues in Selenovasopressin by Using 77Se NMR Spectroscopy

Dr. Mehdi Mobli

Corresponding Author

Dr. Mehdi Mobli

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)Search for more papers by this author
David Morgenstern

David Morgenstern

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)

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Prof. Glenn F. King

Prof. Glenn F. King

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)

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Prof. Paul F. Alewood

Prof. Paul F. Alewood

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)

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Dr. Markus Muttenthaler

Corresponding Author

Dr. Markus Muttenthaler

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)

Department of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia QLD 4072 (Australia)Search for more papers by this author
First published: 14 October 2011
Citations: 9

This work was supported by Discovery Grant DP1095728 from the Australian Research Council and the Internationally Outgoing Marie Curie Fellowship. We thank NMR facility manager P. Harvey at the IMB for technical support.

Graphical Abstract

Selenocystein (Sec), die 21. Aminosäure, kommt in Proteinen aller Lebensformen vor, und die höhere Säurestärke von Selenol im Vergleich zu Thiolen verleiht ihr besondere chemische Eigenschaften. 77Se-NMR-Spektroskopie lieferte den pKa-Wert von Sec-Resten in einem Protein in atomarer Auflösung. Diese Information kann genutzt werden, um chemische Reaktionen vorherzusagen.

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