baɪ tʃˈeɪndʒɪŋ ðɪ ɐmˈiːnoʊ ˈæsɪd fɹʌm ɡluːtˈæmɪk ˈæsɪd tʊ ɐspˈɑːɹɾɪk ˈæsɪd, ɹᵻsˈɜːtʃɚz wɜːɹ ˈeɪbəl tʊ ɐnˈʌl ðɪ ɪfˈɛkt ʌvðɪ ˈeɪtʃ fˈaɪv ˈɛn wˈʌn ˌɛnˈɛs wˈʌn.
By changing the amino acid from glutamic acid to aspartic acid, researchers were able to annul the effect of the H5N1 NS1.