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.

 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 .
Groucho protein family

 In this study , we investigated a possible link between Ii - dependent B cell maturation and the NF - kappaB pathway .
NF - kappaB

 In contrast , IL - 10 alone appeared to account for STAT3 activation resulting from B cell stimulation with phorbol ester and calcium ionophore .

IL - 10