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Updated: Aug 23, 2026

Study of the Functions and Activities of Neuronal K-Cl Co-Transporter KCC2 Using Western Blotting
Published on: December 9, 2022
Neuronal functions of the novel serine/threonine kinase Ndr2
Oliver Stork1, Alexander Zhdanov, Alexei Kudersky
1Institute of Physiology, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany. oliver.stork@medizin.uni-magdeburg.de
Abstract:
We have identified a novel member of the Ndr subfamily of serine/threonine protein kinases, Ndr2, as a gene product that is induced in the mouse amygdala during fear memory consolidation and examined a possible function of this kinase in neural differentiation. Expression of Ndr2 mRNA was detected in various cortical and subcortical brain regions, as well as non-neuronal tissues. Its expression in the amygdala was increased 6 h after Pavlovian fear conditioning training and returned to control levels within 24 h. To study intracellular localization and functions of Ndr2, EGFP::Ndr2 fusion proteins were expressed in rat pheochromocytoma (PC12) cells and acutely isolated cortical neurons, thereby revealing an association of Ndr2 with the actin cytoskeleton in somata, neurites and filopodia, in spines and at sites of cell contact. Co-precipitation and pull-down experiments support this finding. Evidence for an involvement of Ndr2 in actin-mediated cellular functions further comes from the observation of decreased cell spreading and changes in neurite outgrowth that were associated with protein serine phosphorylation in transfected PC12 cells. Together, our data suggest that Ndr2 is an interesting candidate gene for the regulation of structural processes in differentiating and mature neuronal cells.
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