1373
NGF also induced a synthetic promoter with repeated Sp1 sites linked to a core promoter , and a plasmid regulated by a chimeric transactivator in which the Gal4 DNA binding domain is fused to the Sp1 transactivation domain , indicating that this transactivation domain is regulated by NGF .
 GENE: NGF; GENE: Sp1 sites; GENE: Gal4 DNA binding domain; GENE: Sp1 transactivation domain; GENE: NGF
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: NGF; GENE: Sp1 sites; GENE: Gal4 DNA binding domain; GENE: Sp1 transactivation domain; GENE: NGF