504
Two separate NF1 - binding loci were also found in the equivalent IE68 gene of HCMV ( Towne ) DNA , but in this case the DNA sequence and competition filter binding experiments indicated a maximum of only four to five consensus binding sites encompassing the promoter - enhancer region .
 GENE: NF1 - binding loci; GENE: IE68 gene
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: NF1 - binding loci; GENE: IE68 gene