Harp Syndrome, also known as hypoprebetalipoproteinemia, acanthocytosis, retinitis pigmentosa, and pallidal degeneration,is related to retinitis pigmentosa and retinitis,and has symptoms including muscle spasticity, muscle spasticity and rod-cone dystrophy. An important gene associated with Harp Syndrome is PANK2 (Pantothenate Kinase 2). Affiliated tissues include globus pallidus, brain and eye, and related mousephenotype renal/urinary system