10967
These results demonstrate that N - glycans flanking the receptor - binding site of the HA molecule are potent regulators of influenza virus growth , with the glycan at Asn149 being dominant and that at Asn123 being less effective .
 HA molecule
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 HA molecule