1749
In patients with type IA maple syrup urine disease , the E1alpha subunit is affected , resulting in the loss of E1 and branched - chain ketoacid dehydrogenase catalytic activities .
 GENE: E1alpha subunit; GENE: E1; GENE: branched - chain ketoacid dehydrogenase
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: E1alpha subunit; GENE: E1; GENE: branched - chain ketoacid dehydrogenase