11493
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 .
 GENE: estrogen receptor alpha; GENE: ERalpha; GENE: mitogen - activated protein kinase; GENE: MAPK; GENE: transforming growth factor alpha; GENE: TGF - alpha
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: estrogen receptor alpha, ERalpha, mitogen - activated protein kinase, MAPK, transforming growth factor alpha, TGF - alpha 
Answer:
 GENE: estrogen receptor alpha; GENE: ERalpha; GENE: mitogen - activated protein kinase; GENE: MAPK; GENE: transforming growth factor alpha; GENE: TGF - alpha