Presynaptic homeostatic plasticity adaptively enhances neurotransmitter release following diminished postsynaptic glutamate receptor functionality. Here the authors identify a calcium-independent signaling system where active CaMKII detects a short domain encoded in a glutamate receptor C-tail, which gates retrograde homeostatic communication at a model glutamatergic synapse.
- Sarah Perry
- Yifu Han
- Dion Dickman