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:
 Pax5 thus functions both as a transcriptional repressor and activator , depending on its interactions with corepressors of the Groucho protein family or with positive regulators such as the TATA - binding protein .
answer:
Groucho protein family


question:
 In contrast to MAC , MO - derived dendritic cells showed an extremely low expression of CRABP II .
answer:
CRABP II


question:
 The B cell factor was purified to homogeneity using affinity chromatography and consists of three peptides of 62 , 61 , and 58 . 5 + / - 1 . 5 kd .
answer:

B cell factor