wˈʌn ʌvðə mˈeɪn stɹˈʌktʃɚɹəl dˈɪfɹənsᵻz wɪð bˈeɪɾəlˈæktəɡlˌɑːbjʊlˌɪn ɪz ðˌɐɾɪt dʌznˌɑːt hæv ˌɛni fɹˈiː θˌaɪoʊl ɡɹˈuːp ðæt kæn sˈɜːv æz ðə stˈɑːɹɾɪŋpˈɔɪnt fɚɹə kˈoʊvələnt ˌæɡɹɪɡˈeɪʃən ɹɪˈækʃən.
One of the main structural differences with beta-lactoglobulin is that it does not have any free thiol group that can serve as the starting-point for a covalent aggregation reaction.