The AC020558.2, ZNF32-AS2, AP4B1-AS1, AL355488.1, AC109460.3, SNHG1, C3orf35, LMNTD2-AS1, AL365330.1 and SLC25A25-AS1 expression data were merged with the prognosis data of PC patients. The gene discussed is AP4B1; the disease is pachyonychia congenita.