nELAVL phosphorylation by CDKL5 regulates inter-condensates composition and communication to promote experience-dependent maturation of the visual cortex
This study reveals that CDKL5 phosphorylates nELAVL proteins to regulate the size and inter-condensate communication of their biomolecular assemblies, thereby stabilizing activity-dependent mRNAs like *Fos* and ensuring the experience-dependent maturation of the visual cortex, a mechanism disrupted in CDKL5 deficiency disorder.