CDK-related protein kinases in plants |
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| Authors: | Joubès Jérôme Chevalier Christian Dudits Denes Heberle-Bors Erwin Inzé Dirk Umeda Masaaki Renaudin Jean-Pierre |
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| Institution: | (1) Laboratory of Plant Physiology, National Institute for Agronomic Research INRA, BP 81, 33883 Villenave d'Ornon Cedex, France;(2) Institute of Plant Biology, Biological Research Center, Hungarian Academy of Sciences, Temesvari krt.62, P.O. Box 521, 6701 Szeged, Hungary;(3) Institute of Microbiology and Genetics, University of Vienna, Dr. Bohrgasse 9, 1030 Vienna, Austria;(4) Department of Genetics, University of Gent, Ledeganckstraat 35, 9000 Gent, Belgium;(5) Institute of Molecular and Cellular Biosciences, University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, 113-0032, Japan;(6) Laboratory of Plant Cellular and Molecular Developmental Biology, University Bordeaux 1, Avenue des Facultés, 33405 Talence Cedex |
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| Abstract: | Cyclin-dependent kinases (CDK) form a conserved superfamily of eukaryotic serine-threonine protein kinases, which require binding to a cyclin protein for activity. CDK are involved in different aspects of cell biology and notably in cell cycle regulation. The comparison of nearly 50 plant CDK-related cDNAs with a selected set of their animal and yeast counterparts reveals five classes of these genes in plants. These are described here with respect to their phylogenetic, structural and functional properties. A plant-wide nomenclature of CDK-related genes is proposed, using a system similar to that of the plant cyclin genes. The most numerous class, CDKA, includes genes coding for CDK with the PSTAIRE canonical motif. CDKB makes up a class of plant-specific CDK divided into two groups: CDKB1 and CDKB2. CDKC, CDKD and CDKE form less numerous classes. The CDKD class includes the plant orthologues of metazoan CDK7, which correspond to the CDK-activating kinase (CAK). At present, no functional information is available in plants for CDKC and CDKE. |
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| Keywords: | CDK cell cycle nomenclature |
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