Given the task definition and input, reply with output. In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

 Using the reverse transcription - polymerase chain reaction ( RT ) assay , the limit of detection was 10 ( - 5 ) to 10 ( - 6 ) for PML / RAR alpha transcript and 10 ( - 4 ) to 10 ( - 5 ) for the AML1 / ETO transcript .

AML1 / ETO