instruction:
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.
question:
 The status of the TRAIL receptors ( assessed by immunoblotting and flow cytometry ) could not predict TRAIL sensitivity of MM cells .
answer:
TRAIL receptors


question:
 BCL - 6 is essential for germinal center formation and thus for affinity maturation of immunoglobulin ( Ig ) genes by somatic mutations .
answer:
BCL - 6


question:
 To study B cell - specific changes that occur during the aging process , we investigated expression patterns of Pax - 5a and 5d in mature B cells of young and aged mice .
answer:

Pax - 5a