2284
The efficiency of transfections was normalized relative to the net amount of CAT plasmid actually transfected into recipient cells , determined by a modified Southern hybridization procedure .
 GENE: CAT
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