Serine/threonine-protein kinase BRSK1 (BRSK1)

Serine/threonine-protein kinase that plays a key role in polarization of neurons and centrosome duplication. Following phosphorylation and activation by STK11/LKB1, acts as a key regulator of polarization of cortical neurons, probably by mediating phosphorylation of microtubule-associated proteins such as MAPT/TAU in'Thr-529' and'Ser-579'.

Also regulates neuron polarization by mediating phosphorylation of WEE1 in'Ser-642' in post-mitotic neurons, leading to down-regulate WEE1 action in polarized neurons. In neurons, localizes to synaptic vesicles and plays a role in neurotransmitter release, possibly by phosphorylating RIMS1.