tokens: The mechanism of ligand activated estrogen receptor alpha ( ERalpha ) - dependent activation of gene expression through the SRE was determined by mutational analysis of the promoter , analysis of mitogen activated protein kinase ( MAPK ) pathway activation by E2 , and transforming growth factor alpha ( TGF-alpha ) as a positive control .
folded_tokens: the mechanism of ligand activate estrogen receptor alpha ( eralpha ) - dependent activation of gene expression through the sre be determine by mutational analysis of the promoter , analysis of mitogen activate protein kinase ( mapk ) pathway activation by e2 , and transform growth factor alpha ( tgf-alpha ) as a positive control .