203833
23S rRNA ( uridine2479-2 ' - O ) - methyltransferase ( , AviRb ) is an enzyme with system name S-adenosyl-L-methionine :23 S rRNA ( uridine2479-2 ' - O ) - methyltransferase .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None