Abstract
Activity of phosphoeno/pyruvate carboxylase (PEPC) for C4 photosynthesis is upregulated by light (reviewed in [1, 2]). The regulation is mediated by a specific protein kinase (PEPC-PK) that phosphorylates Ser near N-terminus (Ser-15 in the maize Ca-form PEPC). This phosphorylation is dependent on light intensity in Ca-plants [3]. Hartwell e al [4] reported that PEPC-PK was regulated by the level of translatable mRNA. No evidence, however, has been obtained to indicate how PEPC-PKs or its mRNAs are regulated and there has been no report about the gene for PEPC-PK.
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References
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Hartwell, J., Smith, L. H., Wilkins, M. B., Jenkins, G. I. and Nimmo, H. G. (1996) Plant J. 10, 1071–1078
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Ueno, Y. et al. (1998). Regulatory Phosphorylation of Maize C4-Form PEP Carboxylase (PEPC): Antibody Detection System and Purification of PEPC-protein Kinase. In: Garab, G. (eds) Photosynthesis: Mechanisms and Effects. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3953-3_794
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DOI: https://doi.org/10.1007/978-94-011-3953-3_794
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