1130
Three transcriptional control elements within 300 base pairs of the 5 ' - flanking region of the rat glucagon gene interact with regulatory cellular proteins and direct transcription only in glucagon - producing islet cells .
 GENE: rat glucagon gene; GENE: glucagon
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: rat glucagon gene; GENE: glucagon