3812
Analysis of exon 2 of the factor IX gene revealed a C - - > T mutation in codon 10 of the propeptide region , resulting in the substitution of alanine by valine .
 GENE: factor IX gene
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: factor IX gene