Abstract
It is now generally accepted that phosphorylation of cMyBP-C is critically important in maintaining normal cardiac function. Although much of the work to date on phospho-regulation of cMyBP-C has focused on the role of protein kinase A (PKA, also known as cAMP-dependent protein kinase), recent evidence suggests that a number of non-PKA serine/threonine kinases, such as Ca2+/calmodulin-dependent protein kinase II, protein kinase C, protein kinase D and the 90-kDa ribosomal S6 kinase are also capable of targeting this key regulatory sarcomeric protein. This article reviews such evidence and proposes a hypothetical role for some of the pertinent signalling pathways in phospho-regulation of cMyBP-C in the setting of heart failure.
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Acknowledgments
The authors’ work in related areas has been funded by awards from the British Heart Foundation (PG/03/053, FS/03/091, PG/05/043, PG/07/056/23150, PG/08/064/25398) and the Medical Research Council (G0001112, G0001227, G0300052, G0800206).
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Bardswell, S.C., Cuello, F., Kentish, J.C. et al. cMyBP-C as a promiscuous substrate: phosphorylation by non-PKA kinases and its potential significance. J Muscle Res Cell Motil 33, 53–60 (2012). https://doi.org/10.1007/s10974-011-9276-3
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DOI: https://doi.org/10.1007/s10974-011-9276-3