The extension of α-d-1,3-branch linkages by 1,3-α-d-glucan synthase from Streptococcus sobrinus

Tadamichi Takehara, Toshihiro Ansai, Asako Kunimori, Yoshihisa Yamashita, Nobuhiro Hanada

研究成果: Contribution to journalArticle

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In the presence of an acceptor, 1,3-α-d-glucan synthase of Streptococcus sobrinus synthesizes water-insoluble glucans from sucrose. Under such conditions, 1,3-α-d-glucoside linkages were extended without any change in the glucose-residue number between the 1,3,6-branch points on the acceptor. From these results, the mechanisms of water-insoluble-glucan formation were proposed as follows: (i) the attachment of an acceptor to the glucan binding sites of 1,3-α-d-glucan synthase occurs during the initiation of the reaction, and concurrently determines the positions of the branched portions of 1,3,6 on the acceptor, and (ii) the 1,3-α-d-glucoside linkage extends from these positions.

元の言語英語
ページ(範囲)69-71
ページ数3
ジャーナルFEMS microbiology letters
83
発行部数1
DOI
出版物ステータス出版済み - 9 15 1991
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Molecular Biology
  • Genetics

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