Analysis of tumours from Albumin-Cre; p53WT/WT mice (2 from mice at clinical endpoint and 2 small focal tumours identified at experiment endpoint) revealed that expression of CYP2A5 was elevated and MDA staining was low compared to tumours arising in Albumin-Cre; p53FL/FL mice (Fig. 4C–E and Fig. S3C). The gene discussed is ALB; the disease is neoplasm.