Comparative study of blood group-recognizing lectins toward ABO blood group antigens on neoglycoproteins, glycoproteins and complex-type oligosaccharides

Taei Matsui, Jiharu Hamako, Yasuhiro Ozeki, Koiti Titani

研究成果: Article査読

21 被引用数 (Scopus)

抄録

Binding specificities of ABO blood group-recognizing lectins toward blood group antigens on neoglycoproteins, glycoproteins and complex-type oligosaccharides were studied by lectin-blotting analysis, enzyme linked immunosorbent assay and lectin-conjugated agarose column chromatography. Human serum albumin conjugated with A- and B-trisaccharides was clearly recognized by Helix pomatia (HPA), Phaseolus lunatus, Dolichos biflorus agglutinins, and Griffonia simplicifolia I agglutinin B4, respectively. Almost the same results were obtained for human group A and B ovarian cyst and A-active hog gastric mucins, but Glycine max agglutinin only reacted to the group A hog mucin. When human plasma von Willebrand factor (vWF), having Asn-linked blood group antigens, was tested, HPA was highly sensitive to blood group A antigen on the vWF. Ulex europaeus agglutinin I (UEA-I) preferentially bound to the vWF from blood group O plasma. Within the GalNAc-recognizing lectins examined, a biantennary complex-type oligosaccharide having the blood group A structure retarded on an HPA-agarose column, and the affinity was diminished after digestion with α-N-acetylgalactosaminidase. This product bound to UEA-I agarose column. These results indicate that HPA and UEA-I are most sensitive for detection of glycoproteins possessing small amounts of blood group A and H antigens and also useful for fractionation of complex-type oligosaccharides with blood group A and H antigens, respectively.

本文言語English
ページ(範囲)50-57
ページ数8
ジャーナルBiochimica et Biophysica Acta - General Subjects
1525
1-2
DOI
出版ステータスPublished - 16-02-2001

All Science Journal Classification (ASJC) codes

  • 生物理学
  • 生化学
  • 分子生物学

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