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Very - long - chain acyl - CoA dehydrogenase ( VLCAD ) is one of four straight - chain acyl - CoA dehydrogenase ( ACD ) enzymes , which are all nuclear encoded mitochondrial flavoproteins catalyzing the initial step in fatty acid beta - oxidation .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None