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:
 Indeed , in vivo primed T cells predominantly express p50 / p50 and p65 / p50 dimers , whereas these p50 - containing complexes are barely detectable in tolerant T cells that express p65 - and c - Rel - containing complexes .
answer:
c - Rel


question:
 Cellularity and fibrosis were unrelated to the presence or absence of oestrogen receptor .
answer:
oestrogen receptor


question:
 As the role of p50 remains unclear , we focused our present study on NF - kappa B1 ( p50 / p105 ) gene regulation .
answer:

p50 / p105