Binding of synthetic oligosaccharides to the hepatic Gal/GalNAc lectin. Dependence on fine structural features - PubMed (original) (raw)
. 1983 Jan 10;258(1):199-202.
- PMID: 6848494
Free article
Binding of synthetic oligosaccharides to the hepatic Gal/GalNAc lectin. Dependence on fine structural features
Y C Lee et al. J Biol Chem. 1983.
Free article
Abstract
A series of synthetic oligosaccharides, resembling natural N-acetyllactosamine type glycans, were tested for their ability to inhibit the binding of labeled ligand to the mammalian hepatic lectin on rabbit hepatocytes at 2 degrees C. A dramatic hierarchy of inhibitory potency (tetraantennary greater than triantennary much greater than biantennary much greater than monoantennary) could be demonstrated. The range of concentration required for 50% inhibition of labeled ligand binding extended from approximately 1 mM, for the monoantennary oligosaccharides, to approximately 1 nM for triantennary oligosaccharides, even though the absolute Gal concentration increased only 3-fold. It was found that the number of Gal residues/cluster and their branching mode are major determinants of binding affinity of ligands to the hepatic lectin on the surface of hepatocytes.
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