【7/12更新】2022年4月1日からのCiNii ArticlesのCiNii Researchへの統合について

Structural determination of an N-glycan moiety attached to the prothoracicotropic hormone from the silkmoth Bombyx mori

  • Shinji Nagata
    Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
  • Jun Kobayashi
    Faculty of Engineering, Mie University, Tsu, Japan
  • Hiroshi Kataoka
    Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
  • Akinori Suzuki
    Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan

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<jats:title>Abstract</jats:title> <jats:p>The predominant structure of the N-glycan on the prothoracicotropic hormone (PTTH) isolated from 1.8 million adult heads of silkmoths was determined to be Manα1-6Manβ1-4GlcNAcβ1-4(Fucα1-6)GlcNAc-OH, which is identical to that of the baculovirus-expressed recombinant PTTH. An ecdysis progression assay demonstrated that N-glycosylated PTTH exhibited a slightly higher activity than the recombinant PTTH without N-glycosylation produced by an Escherichia coli expression system.</jats:p>

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