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Glycosaminoglycans (GAGs) affect the efficiency of cellular uptake of a wide range of cell penetrating peptides (CPPs). GAGs have been proposed to cluster with CPPs at the cell surface before uptake but little is known about the formation or stability of CPP–GAG clusters. Here we apply a combination of heparin affinity chromatography, dynamic light scattering, and fluorescence spectroscopy to characterize...
Many studies have examined consensus sequences required for protein‐glycosaminoglycan interactions. Through the synthesis of helical heparin binding peptides, this study probes the relationship between spatial arrangement of positive charge and heparin binding affinity. Peptides with a linear distribution of positive charge along one face of the α‐helix had the highest affinity for heparin. Moving...
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