Cyclins D, phytoregulators and cell cycle onset in germinating maize
نویسندگان
چکیده
منابع مشابه
Cyclins and cell cycle checkpoints.
The eucaryotic cell cycle is regulated by the periodic synthesis and destruction of cyclins that associate with and activate cyclin-dependent kinases. Cyclin-dependent kinase inhibitors, such as p21 and p16, also play important roles in cell cycle control by coordinating internal and external signals and impeding proliferation at several key checkpoints. Understanding how these proteins interac...
متن کاملComplexes of D-type cyclins with CDKs during maize germination
The importance of cell proliferation in plant growth and development has been well documented. The majority of studies on basic cell cycle mechanisms in plants have been at the level of gene expression and much less knowledge has accumulated in terms of protein interactions and activation. Two key proteins, cyclins and cyclin-dependent kinases (CDKs) are fundamental for cell cycle regulation an...
متن کاملRecycling the Cell Cycle Cyclins Revisited
I discuss advances in the cell cycle in the 21 years since cyclin was discovered. The surprising redundancy amongst the classical cyclins (A, B, and E) and cyclin-dependent kinases (Cdk1 and Cdk2) show that the important differences between these proteins are when and where they are expressed rather than the proteins they phosphorylate. Although the broad principles of the cell cycle oscillator...
متن کاملCa2+, calmodulin, and cyclins in vascular smooth muscle cell cycle.
Ca 2 is a major determinant of many biochemical processes in various cell types, from the beginning of new life and egg fertilization to the end of life and cell death.1 In vascular smooth muscle (VSM), physiological resting levels of intracellular free Ca concentration ([Ca ]i) in the nanomolar range are necessary to maintain basal vascular tone.2–4 VSM activation is associated with an increas...
متن کاملCdks, cyclins and CKIs: roles beyond cell cycle regulation.
Cyclin-dependent kinases (Cdks) are serine/threonine kinases and their catalytic activities are modulated by interactions with cyclins and Cdk inhibitors (CKIs). Close cooperation between this trio is necessary for ensuring orderly progression through the cell cycle. In addition to their well-established function in cell cycle control, it is becoming increasingly apparent that mammalian Cdks, c...
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ژورنال
عنوان ژورنال: Plant Signaling & Behavior
سال: 2008
ISSN: 1559-2324
DOI: 10.4161/psb.3.8.5733