Influence of Trp flipping on carbohydrate binding in lectins. An example on Aleuria aurantia lectin AAL

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Influence of Trp flipping on carbohydrate binding in lectins. An example on Aleuria aurantia lectin AAL

Protein-carbohydrate interactions are very often mediated by the stacking CH-π interactions involving the side chains of aromatic amino acids such as tryptophan (Trp), tyrosine (Tyr) or phenylalanine (Phe). Especially suitable for stacking is the Trp residue. Analysis of the PDB database shows Trp stacking for 265 carbohydrate or carbohydrate like ligands in 5 208 Trp containing motives. An app...

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Aleuria Aurantia Lectin (AAL)-Reactive Immunoglobulin G Rapidly Appears in Sera of Animals following Antigen Exposure

We have discovered an Aleuria Aurantia Lectin (AAL)-reactive immunoglobulin G (IgG) that naturally occurs in the circulation of rabbits and mice, following immune responses induced by various foreign antigens. AAL can specifically bind to fucose moieties on glycoproteins. However, most serum IgGs are poorly bound by AAL unless they are denatured or treated with glycosidase. In this study, using...

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Fractionation of L-fucose-containing oligosaccharides on immobilized Aleuria aurantia lectin.

The carbohydrate-binding specificity of Aleuria aurantia lectin was investigated by analyzing the behavior of a variety of fucose-containing oligosaccharides on an A. aurantia lectin-Sepharose column. Studies with complex-type oligosaccharides obtained from various glycoproteins by hydrazinolysis and their partial degradation fragments indicated that the presence of the alpha-fucosyl residue li...

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Influence of glycosidic linkage on the nature of carbohydrate binding in beta-prism I fold lectins: an X-ray and molecular dynamics investigation on banana lectin-carbohydrate complexes.

The three crystal structures reported here provide details of the interactions of mannose and the mannosyl-α-1,3-mannose component of a pentamannose with banana lectin and evidence for the binding of glucosyl-α-1,2-glucose to the lectin. The known structures involving the lectin include a complex with glucosyl-β-1,3-glucose. Modeling studies on the three disaccharide complexes with the reducing...

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ژورنال

عنوان ژورنال: PLOS ONE

سال: 2017

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0189375