1400
POU - specific and POU - homeo domains of Oct3 were produced in Echerichia coli for characterization of DNA binding to the octamer sequence .
 POU, POU, Oct3
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 POU, POU, Oct3