Abstract
Earlier studies showed that Moluccella laevis lectin, which has anti-Tn specificity, reacts more strongly with native or desialylated blood group N glycophorin A than with the respective glycophorins of blood group M. We now present results indicating that Vicia villosa B4 anti-Tn lectin, which does not show detectable reaction with untreated glycophorins or erythrocytes, reacts better with desialylated blood group N antigen than with asialo M antigen. This was demonstrated by three assays: (1) agglutination of asialoerythrocytes; (2) binding of biotinylated lectin to asialoerythrocytes immobilized on ELISA plates; and (3) inhibition of lectin binding to asialo-agalactoglycophorin with asialoglycophorins M and N. These results supply further support for the conclusion that glycophorin of blood group N has more GalNAc residues unsubstituted with Gal (Tn receptors) than glycophorin of blood group M.
Original language | English |
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Pages (from-to) | 371-374 |
Number of pages | 4 |
Journal | Glycoconjugate Journal |
Volume | 11 |
Issue number | 4 |
DOIs | |
State | Published - 08 1994 |
Keywords
- Tn antigen
- Vicia villosa lectin
- blood groups MN
- glycophorin
- lectins