title: Separation and characterization of four forms of beta-N-acetylhexosaminidase from chicken brain.
abstract: Chicken brain beta-N-acetylhexosaminidases from embryos (16 and 21 days old), newborns (1 and 4 days old), and adults (3 1/2 months and 2 years old) were separated into four different forms by ion exchange chromatography on diethylaminoethyl-cellulose. Three of these forms were "acid" hexosaminidases (I, IIA, and IIB), and the fourth was a "neutral" form. Throughout development of the chicken, forms IIA and III maintained the same activity ratio, whereas that for form I decreased and that for form IIB showed an increase.
mesh_terms: D000818:Animals; D001921:Brain / Q000196:embryology / Q000201:enzymology* / Q000254:growth & development; D055598:Chemical Phenomena; D002621:Chemistry; D002645:Chickens / Q000254:growth & development; D002845:Chromatography / Q000379:methods; D007527:Isoenzymes / Q000302:isolation & purification* / Q000378:metabolism; D007700:Kinetics; D001619:beta-N-Acetylhexosaminidases / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D007527:Isoenzymes; D001619:beta-N-Acetylhexosaminidases