In situ measurements of creatine kinase flux by NMR. The lessons from bioengineered mice

K. Nicolaij, F.A. Dorsten, van, T. Reese, M.J. Kruiskamp, J.F. Gellerich, C.J.A. Echteld, van

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Abstract

P-31 nuclear magnetic resonance (NMR) is uniquely suited to measure the kinetics of the phosphoryl-exchange reaction catalyzed by creatine kinase in intact mammalian tissue, especially striated muscle. Recently developed transgenic mouse models of the creatine kinase iso-enzyme system open novel opportunities to assess the functional importance of the individual iso-enzymes and their relative contribution to the total in situ flux through the CK reaction. This chapter reviews the most recent findings from NMR flux measurements on such genetic models of CK function. Findings in intact mouse skeletal and cardiac muscle in vivo are compared to data from purified mitochondrial and cytosolic creatine kinase in vitro. The relevance of findings in transgenic animals for the function of CK in wild-type tissue is described and the perspectives of transgenic techniques in future quantitative studies on the creatine kinase iso-enzyme system are indicated.
Original languageEnglish
Pages (from-to)195-208
JournalMolecular and Cellular Biochemistry
Volume184
Issue number1-2
DOIs
Publication statusPublished - 1998

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    Nicolaij, K., Dorsten, van, F. A., Reese, T., Kruiskamp, M. J., Gellerich, J. F., & Echteld, van, C. J. A. (1998). In situ measurements of creatine kinase flux by NMR. The lessons from bioengineered mice. Molecular and Cellular Biochemistry, 184(1-2), 195-208. https://doi.org/10.1023/A:1006867818617