Figure 1

An RT-PCR assay for NPM-ALK, TPM3-ALK, TFG-ALK, and ATIC-ALK fusion transcripts. (a) NPM-ALK (92 bp); (b) TPM3-ALK (105 bp); (c) TFG-ALK (120 bp); and (d) ATIC-ALK (102 bp). N, negative control (normal lymph node); lanes 1–10, ALK⁺ anaplastic large-cell lymphomas. β-actin mRNA is amplified in all cases.