2273
It spans 20 kilobases , consists of 7 exons and 6 introns , and contains a TATA motif 24 nucleotides upstream of the transcriptional start site .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None