beta-n-acetylhexosaminidase ( hexosaminidase ) i , which has an intermediate charge character between those of hexosaminidases a ( alpha beta 2 ) and b [ beta beta ) 2 ) , was purified 1,500-fold from human placenta by procedures including chromatographies on concanavalin a ( con a ) -sepharose and an immunoadsorbent column .
C0005270
hexosaminidase
C0019484
hexosaminidases