Torsin-1A (TOR1A)

Protein with chaperone functions important for the control of protein folding, processing, stability and localization as well as for the reduction of misfolded protein aggregates. Involved in the regulation of synaptic vesicle recycling, controls STON2 protein stability in collaboration with the COP9 signalosome complex (CSN).

In the nucleus, may link the cytoskeleton with the nuclear envelope, this mechanism appears to be crucial for the control of nuclear polarity, cell movement and, specifically in neurons, nuclear envelope integrity. Participates in the cellular trafficking and might regulate the subcellular location of multipass membrane proteins like the dopamine transporter SLC6A3, causing the modulation of dopamine neurotransmission.