Retinitis Pigmentosa 31, also known as rp31, is related to retinitis and retinitis pigmentosa. An important gene associated with Retinitis Pigmentosa 31 is TOPORS (TOP1 Binding Arginine/Serine Rich Protein, E3 Ubiquitin Ligase). Affiliated tissues include retina and eye, and related phenotypes are abnormal electroretinogram and visual field defect