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Onn Haji Hashim

2002

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Galactose-Binding Lectin From The Seeds Of Champedak (Artocarpus Integer): Sequences Of Its Subunits And Interactions With Human Serum O-Glycosylated Glycoproteins, Onn Haji Hashim Jan 2002

Galactose-Binding Lectin From The Seeds Of Champedak (Artocarpus Integer): Sequences Of Its Subunits And Interactions With Human Serum O-Glycosylated Glycoproteins, Onn Haji Hashim

Onn Haji Hashim

Our group has previously reported the isolation, partial characterisation, and application of a Galbeta1-3GalNAc- and IgA1-reactive lectin from the seeds of champedak (Artocarpus integer). In the present study, we have subjected the purified lectin to reverse-phase high performance liquid chromatography and sequenced its subunits. Determination of the N-terminal sequence of the first 47 residues of the large subunit demonstrated at least 95% homology to the N-terminal sequence of the alpha chains of a few other galactose-binding Artocarpus lectins, The two smaller subunits of the lectin, each comprised of 21 amino acid residues, demonstrated minor sequence variability. Their sequences were generally …