TANC1 (Tetratricopeptide Repeat, Ankyrin Repeat, and Coiled-Coil Containing 1): TANC1 is a protein involved in synaptic function and neural development. It contributes to the formation and maintenance of synapses—the junctions through which neurons communicate. Dysfunctions in TANC1 may impact neural connectivity and have been studied concerning neurodevelopmental disorders.