Kalirin is required for BDNF-stimulated dendritic outgrowth and branching.
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BDNF/TrkB activation of Rac1 in neurons is largely mediated by Kalirin.
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The Tiam1 fragment PHn-CC-EX blocks Tiam1 and Kalirin Rac1 activation.
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Kalirin isoforms lacking the second GEF domain can rescue BDNF responsiveness.
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Kalirin affects the time course of BDNF/TrkB pathway activation in neurons.
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