5498
A third one is homologous in half of its length to the prokaryotic hydantoinase HyuA and in the other half to hydatoinase HyuB .
 prokaryotic hydantoinase, HyuA, hydatoinase, HyuB
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 prokaryotic hydantoinase, HyuA, hydatoinase, HyuB