Identification of a Royal Jelly Glycoprotein That Carries Unique Complex-Type N-Glycans Harboring the T-Antigen (Galβ1-3GalNAc) Unit

Yoshinobu KIMURA; Hiromi NAGAI; Masaki MIYAMOTO; Mariko KIMURA; Masami YONEKURA

doi:10.1271/bbb.100472

Biochemistry & Molecular Biology Notes

Identification of a Royal Jelly Glycoprotein That Carries Unique Complex-Type N-Glycans Harboring the T-Antigen (Galβ1-3GalNAc) Unit

Yoshinobu KIMURA, Hiromi NAGAI, Masaki MIYAMOTO, Mariko KIMURA, Masami YONEKURA

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Keywords: royal jelly, N-glycosylation site, Thomsen-Friedenreich antigen (T-antigen), insect glycoprotein, Apis mellifera

JOURNAL FREE ACCESS

2010 Volume 74 Issue 10 Pages 2148-2150

DOI https://doi.org/10.1271/bbb.100472

View "Advance Publication" version (October 7, 2010).

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Abstract

In this study, we identified a royal jelly glycoprotein (RJG) that carries a unique complex-type N-glycans harboring the T-antigen (Galβ1-3GalNAc) unit. The amino acid sequence of the tryptic glycopeptide harboring the T-antigen unit was G-E-S-L-X-K (X might be glycosylated Asn), confirmed in the major royal jelly glycoprotein 1 (MRJP1), which is also expressed in the mushroom body of the honeybee brain.

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