1199
Transcriptional analysis of a series of deletion mutants of the gene in the nuclear extracts prepared from the middle silk gland of 2 - day - old fifth instar larvae revealed the presence of multiple cis - regulatory elements located both upstream and downstream of the initiation site .
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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