HOMER1 (Homer Scaffold Protein 1): HOMER1 is a scaffolding protein involved in regulating calcium signalling in neurons and muscle cells. It plays a crucial role in synaptic plasticity, neuronal development, and excitation-contraction coupling in muscle. Changes in HOMER1 expression have been linked to neurological disorders, such as schizophrenia and epilepsy, highlighting its importance in neural communication and brain function.