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N-linked oligosaccharides perform important roles in protein folding and stability, biosynthetic quality control, and sorting events in the secretory pathway of many N-glycosylated proteins. Equipped with world-leading technology platforms and professional scientific staff in carbohydrate synthesis, Creative Biolabs has accumulated extensive experience in custom N-linked oligosaccharides synthesis service. We offer our clients high-quality N-linked oligosaccharides from milligrams to grams scale in a short time with competitive pricing. Through our high-efficient system, clients could accelerate their research by reducing project costs and timelines.
Typified by the attachment of the glycan to an asparagine side chain of the protein, the N-linked glycosylation, is by far the most common. The consensus sequence for N-glycosylation is Asn-X-Ser/Thr, where X is any amino acid other than proline. The asparagine is linked to N-acetylglucosamine (GlcNAc) residues. Additional sugar residues in the glycan depend on whether glycosylation is high-mannose hybrid or complex type.
N-linked glycoproteins include such biologically important molecules as cell-surface receptors, cell-adhesion molecules, immunoglobulins, and other serum proteins, and tumor antigens. N-linked oligosaccharides perform important roles in those glycoprotein function. 1) N-linked oligosaccharides enhance the solubility and stability of the proteins in the endoplasmic reticulum, the Golgi and on the outside of the cell membrane. 2) N-linked oligosaccharides are used as signal molecules during protein folding and transport. 3) Most importantly, N-linked oligosaccharides on completely folded proteins are involved in a wide range of processes, including determining the specificity of membrane receptors in innate immunity or in cell-to-cell interactions, and changing the properties of hormones and secreted proteins. Statistical analyses show that instances of N-glycosylation in eukaryotic glycoproteins easily out-number O-glycosylation. In general, N-glycans are bulkier and more homogeneous in nature than O-glycans. The observations that so many eukaryotic proteins are glycosylated and that N-linked glycosylation is more frequently observed in proteins suggest that N-linked glycans are a prime requisite for maintaining the ‘fold–function’ balance in many proteins.
Creative Biolabs focuses on research and development of carbohydrate synthetic strategies. Our scientists have established highly effective chemical or chemoenzymatic synthesis approaches for high-yield and cost-effective production of N-linked oligosaccharides. We have accumulated extensive experience in synthesizing complex and biomedically important N-linked oligosaccharides.
In terms of the extensive experience in oligosaccharide synthesis, Creative Biolabs is proud to offer our clients custom N-linked oligosaccharides synthesis service with the best quality. Please contact us for more information and a detailed quote.