724
Northern blot analyses demonstrate that 3 . 9 - and 5 - kilobase mRNAs corresponding to the cDNA were present in all tissues examined , suggesting that the protein it encodes performs a housekeeping function .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None