Rescued XDP signature genes such as GABRA5, STX6, and ATP6V0A1 code for subunits of channels or receptors that map to glutamatergic or GABAergic synapses,97–99 cellular components that are relevant for neurotransmission and the movement disorder phenotype observed in XDP. Here, GABRA5 is linked to X-linked dystonia-parkinsonism.