1346
Consistent with ErbB - 2 being a shared receptor subunit , its tyrosine phosphorylation was increased by both heterologous ligands and it mediated a trans - inhibitory effect of NDF on EGF binding .
 GENE: ErbB - 2; GENE: NDF; GENE: EGF
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: ErbB - 2; GENE: NDF; GENE: EGF