1185
These sequences were further tested for the presence of an enhancer element , by their ability to activate a fusion reporter gene consisting of the CAT gene linked to the gamma - globin gene promoter , in erythroid ( K562 ) and non - erythroid ( HeLa ) cells .
 GENE: CAT gene; GENE: gamma - globin gene promoter
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: CAT gene; GENE: gamma - globin gene promoter