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.

 Transcription factor B - cell - specific activator protein ( BSAP ) is differentially expressed in B cells and in subsets of B - cell lymphomas .
Transcription factor

 Activation of signal transduction and apoptosis in healthy lymphomonocytes exposed to bystander HIV - 1 - infected cells .
HIV - 1

 Human lymphocytes are an adequate object for studying genetically determined variability of GC receptors and its clinical importance .

GC receptors

