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Coordination to Divalent Cations by Calcium-Binding Proteins

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Part of the book series: Methods in Molecular Biology ((MIMB,volume 1929))

Abstract

Fourier-transform infrared spectroscopy (FTIR) is a powerful tool for examining the metal coordination of the side chain COO groups of Glu and Asp on Ca2+-binding proteins in solution. The behavior of COO symmetric stretch can be investigated by using protein samples in H2O solution. However, it is difficult to obtain information about the behavior of the COO antisymmetric stretch in H2O solution, because the COO antisymmetric stretching band overlaps with the amide II band. Therefore, to obtain reliable infrared spectra in the region of COO antisymmetric stretch, exchangeable protons in the protein should be completely deuterated by incubating the apoprotein dissolved in D2O under mild heating conditions.

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References

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Correspondence to Masayuki Nara .

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Nara, M., Morii, H., Tanokura, M. (2019). Coordination to Divalent Cations by Calcium-Binding Proteins. In: Heizmann, C. (eds) Calcium-Binding Proteins of the EF-Hand Superfamily. Methods in Molecular Biology, vol 1929. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-9030-6_9

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  • DOI: https://doi.org/10.1007/978-1-4939-9030-6_9

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  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-9029-0

  • Online ISBN: 978-1-4939-9030-6

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