1537
Mutations abolishing MalK function not only result in inability to transport maltose but also cause constitutive expression of the maltose regulon .
 GENE: MalK; GENE: maltose regulon
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: MalK; GENE: maltose regulon