First Author | Lee AY | Year | 2012 |
Journal | Proc Natl Acad Sci U S A | Volume | 109 |
Issue | 42 | Pages | 16841-6 |
PubMed ID | 23027929 | Mgi Jnum | J:190304 |
Mgi Id | MGI:5448578 | Doi | 10.1073/pnas.1215406109 |
Citation | Lee AY, et al. (2012) Protein kinase WNK3 regulates the neuronal splicing factor Fox-1. Proc Natl Acad Sci U S A 109(42):16841-6 |
abstractText | We report an action of the protein kinase WNK3 on the neuronal mRNA splicing factor Fox-1. Fox-1 splices mRNAs encoding proteins important in synaptic transmission and membrane excitation. WNK3, implicated in the control of neuronal excitability through actions on ion transport, binds Fox-1 and inhibits its splicing activity in a kinase activity-dependent manner. Phosphorylation of Fox-1 by WNK3 does not change its RNA binding capacity; instead, WNK3 increases the cytoplasmic localization of Fox-1, thereby suppressing Fox-1-dependent splicing. These findings demonstrate a role of WNK3 in RNA processing. Considering the implication of WNK3 and Fox-1 in disorders of neuronal development such as autism, WNK3 may offer a target for treatment of Fox-1-induced disease. |