This gene encodes a transmembrane protein containing a proline-rich domain in its N-terminal half. Studies in mice suggest that it is predominantly expressed in brain and spinal cord in embryonic and postnatal stages.
^Chen WJ, Lin Y, Xiong ZQ, Wei W, Ni W, Tan GH, Guo SL, He J, Chen YF, Zhang QJ, Li HF, Lin Y, Murong SX, Xu J, Wang N, Wu ZY (November 2011). "Exome sequencing identifies truncating mutations in PRRT2 that cause paroxysmal kinesigenic dyskinesia". Nat Genet. 43 (12): 1252–5. doi:10.1038/ng.1008. PMID22101681.