1873
This gene is divided into six exons spanning about 3kb , and encodes a 175 amino acid protein with 40 - 52 % identity with the other five mouse Reg ( regenerating gene product ) proteins .
 GENE: mouse Reg; GENE: regenerating gene product
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: mouse Reg; GENE: regenerating gene product