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J Dent Res 52(4): 782-790, 1973
© 1973 International and American Associations for Dental Research
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Isolation and Characterization of beta-N-Acetylglucosaminidase from Human Parotid Saliva

TATSUO WATANABE 1, RYO NAKAMURA 1, YOSHIFUMI IWAMOTO 1, and AKIRA TSUNEMITSU 1

1 Department of Preventive Dentistry, Hiroshima University School of Dentistry, Hiroshima 734, Japan

Beta-N-acetylglucosaminidase in human parotid saliva was separated into two subfractions by diethylaminoethanol cellulose column chromatography. One subfraction of the enzyme was isolated and purified. Disk electrophoresis showed that the purified enzyme was homogeneous. The molecular weight of this enzyme was estimated to be about 153,000 by gel filtration and dodecyl sulfate polyacrylamide gel electrophoresis. N-acetylbeta-galactosaminides also were hydrolyzed by this enzyme at the same site.

Submitted on June 30, 1972






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