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Biosci Biotechnol Biochem. 1995 Jun;59(6):1135-6.

Purification and characterization of beta-N-acetylglucosaminidase from Alteromonas sp. strain O-7.

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1
Osaka University of Pharmaceutical Sciences, Japan.

Abstract

beta-N-Acetylglucosaminidase (EC 3.2.1.30) was purified from the outer membrane of a marine bacterium, Alteromonas sp. strain O-7. The enzyme (GlcNAcase A) was purified by successive column chromatographies. The purified enzyme was found to be homogeneous on sodium dodecyl sulfate polyacrylamide gel electrophoresis. The molecular mass and pI of GlcNAcase A were 92kDa and 4.9, respectively. The optimum pH and temperature were 6.0-7.0 and 45 degrees C, respectively. GlcNAcase A was stable up to 40 degrees C at pH 7.0, and hydrolyzed N-acetylchitooligosaccharides from dimer to hexamer. The amino-terminal 16 amino acid residues of GlcNAcase A were sequenced.

PMID:
7613001
DOI:
10.1271/bbb.59.1135
[Indexed for MEDLINE]
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