By way of illustrating the utility of these assays for clinical samples, we show that five TP53 transcripts were co-expressed in a cohort of breast tumours, but that the t4 and t7 transcripts (encoding FL/Δ40p53γ and Δ133/Δ160p53γ, respectively) were only detectable in a small proportion of samples. Here, TP53 is linked to breast neoplasm.