Structural analysis of synthetic heparan sulfate oligosaccharides with fibroblast growth factors and heparin-binding hemagglutinin.

08:00 EDT 16th March 2018 | BioPortfolio

Summary of "Structural analysis of synthetic heparan sulfate oligosaccharides with fibroblast growth factors and heparin-binding hemagglutinin."

Heparan sulfate interacts with a variety of proteins at the cell surface. These proteins are primarily attracted to the high negative charge distribution brought by sulfate, sulfamate, and carboxylate functionalities along the sugar chain. Apart from electrostatic interactions, hydrogen bonding and even hydrophobic interactions contribute to the complex formation. While additional sulfate/sulfamate groups are often tolerated as long as the main structural requirements are met, occasionally, certain extra sulfate groups may be detrimental to the binding affinity. Here, we show these binding characteristics using the binding of fibroblast growth factors and heparin-binding hemagglutinin to synthetic heparan sulfate oligosaccharides as examples. Insights into the binding characteristics of these proteins may benefit future therapeutic interventions.


Journal Details

This article was published in the following journal.

Name: Current opinion in structural biology
ISSN: 1879-033X
Pages: 126-133


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Medical and Biotech [MESH] Definitions

A fibroblast growth factor that is a specific mitogen for EPITHELIAL CELLS. It binds a complex of HEPARAN SULFATE and FIBROBLAST GROWTH FACTOR RECEPTOR 2B.

A fibroblast growth factor receptor with specificity for FIBROBLAST GROWTH FACTORS; HEPARAN SULFATE PROTEOGLYCAN; and NEURONAL CELL ADHESION MOLECULES. Several variants of the receptor exist due to multiple ALTERNATIVE SPLICING of its mRNA. Fibroblast growth factor receptor 1 is a tyrosine kinase that transmits signals through the MAP KINASE SIGNALING SYSTEM.

An enzyme that specifically cleaves the ester sulfate of iduronic acid. Its deficiency has been demonstrated in Hunter's syndrome, which is characterized by an excess of dermatan sulfate and heparan sulfate. EC

Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate.

Oligosaccharides containing various types of glycosidic linkages that yield branching or antennae. The number of antennae (such as bi-, tri-, tetra-, or penta-antennary) in the oligosaccharides on the PROTEOGLYCANS; GLYCOPROTEINS; or LIPOPOLYSACCHARIDES contribute to their biological activities, such as receptor binding and metabolism.

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