Diversity in the carbohydrate moieties of mucus glycoproteins of various fishes.

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  • Nakagawa Hiroki
    Department of Agricultural Chemistry, Faculty of Agriculture, Saga University
  • Asakawa Makio
    Laboratory of Food Science, Faculty of Education, Kumamoto University
  • Enomoto Noriyuki
    Department of Agricultural Chemistry, Faculty of Agriculture, Saga University

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Other Title
  • 各種魚類粘液糖タンパク質の糖鎖の多様性
  • 各種魚類粘液糖タンパク質の糖鎖の多様性〔英文〕
  • カクシュ ギョルイ ネンエキ トウ タンパクシツ ノ トウサ ノ タヨウセイ

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Abstract

To obtain information about the characteristics offish mucus glycoproteins, glycopeptides were separated from the Pronase digests of the external mucous materials of 13 species of fishes and analyzed for their cazbohydrate components. The involvement of N-acetylgalactosamine in the carbohydrate-peptide linkage was also investigated. The carbohydrate compositions of the gly-copeptides were very diverse depending on fish species. Glycopeptides from butterfly ray, spiny rasp skate, slimy and finespotted flounder did not contain sialic acid, while those from the other fishes contained a large amount of this acidic sugar. The glycopeptide from butterfly ray was sulfated. A part of the N-acetylgalactosamine which was found in all the glycopeptides was in-volved in the carbohydrate-peptide linkage.

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 54 (9), 1653-1658, 1988

    The Japanese Society of Fisheries Science

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