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.

 However , these compounds did not have a significant effect on SDF1 alpha - induced mitogen - activated protein kinase activity .
SDF1 alpha

 A detailed histopathologic review of 50 primary breast cancer tumors analyzed for estrogen receptor ( ER ) level was carried out and a variety of morphologic features correlated with ER results to identify any factors that will improve the management and prognosis for breast cancer .
estrogen receptor

 Synergistic transcriptional activation of human Acyl - coenzyme A : cholesterol acyltransterase - 1 gene by interferon - gamma and all - trans - retinoic acid THP - 1 cells .

interferon - gamma

