3701
The organization of the MBP - A gene is very similar to the arrangement of the gene encoding the highly homologous pulmonary surfactant apoprotein , although one of the intron positions is shifted by a single amino acid .
 GENE: MBP - A gene; GENE: homologous pulmonary surfactant apoprotein
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: MBP - A gene; GENE: homologous pulmonary surfactant apoprotein