1078
Surprisingly , Northern ( RNA ) blot analysis and reverse transcriptase - PCRs performed after transfection of COS - 7 or HeLa cells with these viral RNAs revealed that Y88S and Y88L RNAs replicated at only very low levels .
 GENE: reverse transcriptase; GENE: Y88S; GENE: Y88L RNAs
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: reverse transcriptase; GENE: Y88S; GENE: Y88L RNAs