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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Preparation and characterization of Ca2+/calmodulin-dependent protein kinase kinase 2 (CaMKK2).
 Jarosilová, Kateřina ; Obšil, Tomáš (advisor) ; Vondrášek, Jiří (referee)
Calmodulin kinase cascade is a signaling pathway which is involved in the response to the increasing intracellular calcium levels. Ca2+ is a ubiquitous second messenger which promotes wide-range of cellular signaling events. Many of these signaling pathways start with the binding of Ca2+ to its primary intracellular receptor calmodulin. Calmodulin in turn binds to its downstream targets in the Ca2+ /calmodulin signaling cascade. One of the most important enzymes of this cascade is a Ca2+ /calmodulin-dependent protein kinase kinase 2 (CaMKK2). CaMKK2 is a serine/threonine protein kinase which regulates for example gene transcription or energy homeostasis by phosphorylation of its downstream targets. Catalytic domain (which provides kinase activity) is located in the middle part of the protein and possesses structure typical for kinases. CaMKK2 consists of 588 amino acids but the secondary structure is known only for the region of the kinase domain (298 residues). The rest of the protein is assumed to be unstructured as long as CaMKK2 is not bound to any interaction partner. The aim of this study was to prepare several constructs of human isoform of CaMKK2 for the further structural and activity studies. It is believed that CaMKK2 is regulated by site-specific phosphorylation. Phosphorylation of some...
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