This entry represents the KA1-like domain found in the brain-specific kinases BRSK1 and BRSK2 [1-2]. The BRSK/SAD kinase family includes serine/threonine-protein kinases that play crucial roles in neuronal polarization, centrosome duplication, cell c ...
This entry represents the KA1-like domain found in the brain-specific kinases BRSK1 and BRSK2 [1-2]. The BRSK/SAD kinase family includes serine/threonine-protein kinases that play crucial roles in neuronal polarization, centrosome duplication, cell cycle progression, and insulin secretion. Members phosphorylate a variety of substrates including CDC25B, CDC25C, MAPT/TAU, and WEE1, modulating their activities. Activation by STK11/LKB1 is a common regulatory mechanism, leading to phosphorylation of microtubule-associated proteins and influencing neuron polarization. These kinases also contribute to synaptic vesicle function and neurotransmitter release, regulate the mitotic cell cycle, and respond to DNA damage. Additionally, they are involved in actin cytoskeleton reorganization and may play a role in the apoptotic response to endoplasmic reticulum stress.