Curiously, a natural readthrough transcription between the JMJD7 locus and the downstream neighbor phospholipase A2, group IVB (PLA2G4B), occurs in tumor tissues, encoding the fusion protein JMJD7-PLA2G4B including a partial JmjC domain and the C2 and phospholipase A2 domains. The gene discussed is PLA2G4B; the disease is neoplasm.