TY - JOUR
T1 - Characterization of N- and O-linked galactosylated oligosaccharides from fission yeast species
AU - Fukunaga, Takamasa
AU - Tanaka, Naotaka
AU - Furumoto, Toshio
AU - Nakakita, Shinichi
AU - Ohashi, Takao
AU - Higuchi, Yujiro
AU - Maekawa, Hiromi
AU - Takegawa, Kaoru
N1 - Funding Information:
We are grateful to Drs Jun Hirabayashi and Hiroaki Tateno for discussion. This study was supported by Mizutani Foundation and Japan Society for the Promotion of Science ( JSPS) KAKENHI grant number JP17H03966 (K.T.).
Publisher Copyright:
© 2020 The Society for Biotechnology, Japan
PY - 2020/8
Y1 - 2020/8
N2 - The N- and O-linked oligosaccharides from fission yeast Schizosaccharomyces pombe not only contain large amounts of D-mannose (Man) but also contain large amounts of D-galactose (Gal). Although the galactomannans of S. pombe are mainly composed of α1,2- or α1,3-linked Gals, some of the terminal α1,2-linked Gals are found to be linked to pyruvylated β1,3-linked galactose (PvGal). We have determined the structural characteristics of the N-glycans and O-glycans in three Schizosaccharomyces species (S. japonicus, S. octosporus, and S. cryophilus) using lectin blot, 1H NMR spectroscopy, and size-fractionation high performance liquid chromatography (HPLC), and found that the galactosylation of oligosaccharides was a common feature in fission yeasts. In addition, each of the terminal Galα1,2-, Galβ1,3- and non-substituted Man residues exhibited distinct characteristics. A BLAST search of gene databases in Schizosaccharomyces identified genes homologous to pvg1 encoding pyruvyltransferase of S. pombe. These genes, when expressed in an S. pombe pvg1Δ strains, led to the pyruvylation of non-reducing terminal β-linked Gal, suggesting the biosynthetic pathway of PvGal-containing oligosaccharides is highly conserved in fission yeasts.
AB - The N- and O-linked oligosaccharides from fission yeast Schizosaccharomyces pombe not only contain large amounts of D-mannose (Man) but also contain large amounts of D-galactose (Gal). Although the galactomannans of S. pombe are mainly composed of α1,2- or α1,3-linked Gals, some of the terminal α1,2-linked Gals are found to be linked to pyruvylated β1,3-linked galactose (PvGal). We have determined the structural characteristics of the N-glycans and O-glycans in three Schizosaccharomyces species (S. japonicus, S. octosporus, and S. cryophilus) using lectin blot, 1H NMR spectroscopy, and size-fractionation high performance liquid chromatography (HPLC), and found that the galactosylation of oligosaccharides was a common feature in fission yeasts. In addition, each of the terminal Galα1,2-, Galβ1,3- and non-substituted Man residues exhibited distinct characteristics. A BLAST search of gene databases in Schizosaccharomyces identified genes homologous to pvg1 encoding pyruvyltransferase of S. pombe. These genes, when expressed in an S. pombe pvg1Δ strains, led to the pyruvylation of non-reducing terminal β-linked Gal, suggesting the biosynthetic pathway of PvGal-containing oligosaccharides is highly conserved in fission yeasts.
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U2 - 10.1016/j.jbiosc.2020.03.008
DO - 10.1016/j.jbiosc.2020.03.008
M3 - Article
C2 - 32265131
AN - SCOPUS:85082809492
VL - 130
SP - 128
EP - 136
JO - Journal of Bioscience and Bioengineering
JF - Journal of Bioscience and Bioengineering
SN - 1389-1723
IS - 2
ER -