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    題名: Presence of endo-β-N-acetylglucosaminidase and protease activities in the commerical neuraminidase preparations isolated from clostridium perfringens
    作者: Chien, Su-fang;Yevich, Steven J.;Li, Su-chen;Li,Yu-Teh
    貢獻者: 淡江大學化學學系
    日期: 1975-07-01
    上傳時間: 2011-10-15 23:29:11 (UTC+8)
    出版者: Philadelphia, PA: Elsevier Inc.
    摘要: Commercial neuraminidase preparations isolated from Clostridium perfringens were found to be contaminated with endoglycosidase and protease activities. The preparations release oligosaccharide fragment(s) with G1cNAc at the reducing end, from the intact ovalbumin. The enzymes also converted Asn-(GlcNAc)2(Man)5 isolated from ovalbumin into Asn-GlcNAc and an oligosaccharide with G1cNAc at the reducing end. Similar results were obtained when Taka-amylase A and its glycopeptide were used as substrates. These results identify the endoglycosidase activity as endo-β-N-acetylglucosaminidase. Furthermore, the commercial neuraminidase preparations contain a protease activity which hydrolyzes Azocoll, hemoglobin, casein, ovalbumin, human serum albumin, and α1-acid glycoprotein.
    關聯: Biochemical and biophysical research communications 65(2), pp.683-691
    DOI: 10.1016/S0006-291X(75)80200-2
    顯示於類別:[化學學系暨研究所] 期刊論文

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