4830
After Northern blot hybridization , two Cx31 transcripts of 2 . 2 and 1 . 8 kb were detected in total RNA of the human keratinocyte cell line HaCaT and two transcripts of 2 . 2 and 1 . 9 kb in total RNA of E6 / E7 transfected human keratinocytes ( HEK cells ) .
 GENE: Cx31 transcripts of 2 . 2 and 1 . 8 kb; GENE: E6; GENE: E7
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: Cx31 transcripts of 2 . 2 and 1 . 8 kb; GENE: E6; GENE: E7