Fluoreszenzmarker für Glycane und Saccharide. Die Analyse fluoreszenzmarkierter Glycane durch hochauflösende Polyacrylamid Gelelektrophorese.
2-Aminoacridone is a highly fluorescent aromatic, which contains a primary amine group that reacts with an aldehyde group at the reducing end of a carbohydrate and is reduced to a stable amine derivative by sodium borohydride (NaBH4). Picomolar levels of glycan compounds can be detected using this fluorophore. The resulting derivatzed compounds can be separated by reverse-phase HPLC and detected by positive-ion electrospray MS . An intense fluorescent, hydrophobic probe that is stable over a wide pH range is useful in the derivatization of glycans to allow for the analysis of complex oligosaccharides using micellar electrokinetic capillary chromatography and reverse- and normal-phase chromatography coupled with mass spectroscopy to determine relative concentrations and structural identity of individual oligosaccharides . The λ excitation and λ emission are 425 nm and 532 nm, respectively.
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Various combinations of fluorescent dyes, polyacrylamide gels, and electrophoresis buffers were tested by fluorophore-assisted carbohydrate electrophoresis (FACE) for the purpose of analyzing sulfated and nonsulfated glycosaminoglycan (GAG) oligosaccharides in which disaccharides and low-molecular weight oligosaccharides were included. A nonionic fluorescent
Journal of the American Society for Mass Spectrometry, 29(6), 1099-1110 (2018-03-14)
The human complement hetero-trimeric C8αβγ (C8) protein assembly (~ 150 kDa) is an important component of the membrane attack complex (MAC). C8 initiates membrane penetration and coordinates MAC pore formation. Here, we charted in detail the structural micro-heterogeneity within C8, purified from
Frontiers in immunology, 11, 608466-608466 (2021-02-02)
Sepsis and septic shock remain the leading causes of death in intensive care units (ICUs), yet the pathogenesis originating from the inflammatory response during sepsis remains ambiguous. Acute-phase proteins are typically highly glycosylated, and the nature of the glycans have
Chitin, a polymer of β(1-4)-linked N-acetylglucosamine found in e.g. arthropods, is a valuable resource that may be used to produce chitosan and chitooligosaccharides, two compounds with considerable industrial and biomedical potential. Deacetylating enzymes may be used to tailor the properties
In quest for high sensitivities, we developed an ultrahigh capillary electrophoresis (CE) method for the structural analysis of heparin and heparan sulfate (HS) in biologic samples. Heparin and HS were digested with an equi-unit mixture of heparin lyases I, II
Glycans play a key role in protein structure and disease; representation on cell surfaces is the glycome.
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