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.

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

 DNA - binding activity of nuclear factor - kappaB was determined by electrophoretic mobility shift assay .
nuclear factor

 Influence of sex hormone binding globulin and serum albumin on the conversion of androstenedione to testosterone by human erythrocytes .

serum albumin