Nude mice with tumours of HT1080 cells expressing FLAG-tagged FIH-1 were injected with vehicle or naphthofluorescein, FLAG-tagged FIH-1 was immunoprecipitated from tumour lysates 3 h after the injection, and co-precipitated Mint3 was detected by western blotting. The gene discussed is APBA3; the disease is neoplasm.