Fig. 1.

Microsatellite instability observed in adult T-cell leukaemia/lymphoma. The amount of each DNA fragment is quantitatively detected and its size is standardised with an accuracy of one base pair, using co-electrophoresed size markers. Results representative for MSI are shown: red lines, tumour; green lines, normal control. All the microsatellite changes observed were Type A: a ATL01; b ATL07; c ATL09; d and e ATL16. These patient codes correspond to those in Table 1