957
The Klebsiella aerogenes gene maoA , which is involved in the synthesis of monoamine oxidase , was induced by tyramine and the related compounds , subjected to catabolite and ammonium ion repression , and cloned .
 Klebsiella aerogenes gene maoA, monoamine oxidase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Klebsiella aerogenes gene maoA, monoamine oxidase