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.
Fluorescent label for glycans and saccharides.
Fluorescent label for glycans and saccharides. The analysis of fluorophore-labeled glycans by high-resolution polyacrylamide gel electrophoresis.
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Matrix biology : journal of the International Society for Matrix Biology, 90, 1-19 (2020-02-23)
Hyaluronan plays a key role in regulating inflammation and tumor angiogenesis. Of the three transmembrane hyaluronan synthases, HAS2 is the main pro-angiogenic enzyme responsible for excessive hyaluronan production. We discovered that HAS2 was degraded in vascular endothelial cells via autophagy
Gerodermia osteodysplastica (GO) is characterized by skin laxity and early-onset osteoporosis. GORAB, the responsible disease gene, encodes a small Golgi protein of poorly characterized function. To circumvent neonatal lethality of the GorabNull full knockout, Gorab was conditionally inactivated in mesenchymal
A quantitative and highly sensitive method for the analysis of glycosaminoglycan (GAG)-derived disaccharides that relies on capillary electrophoresis (CE) with laser-induced fluorescence detection is presented. This method enables complete separation of 17 GAG-derived disaccharides in a single run. Unsaturated disaccharides
A high-resolution online reverse-phase-high-performance liquid chromatography (RP-HPLC)-fluorescence detector (Fd)-electrospray ionization-mass spectrometry (ESI-MS) separation and structural characterization of disaccharides prepared from heparin (Hep), heparan sulfate (HS), and various low-molecular-weight (LMW)-Hep using heparin lyases and derivatization with 2-aminoacridone (AMAC) are described. A
The conformational separation of monosaccharides labeled with fluorescent 2-aminoacrydone (AMAC) was performed by electrophoresis on a plastic microchip with light-emitting diode confocal fluorescence detection. The AMAC-labeled five neutral monosaccharide mixture (D-glucose (Glc), D-mannose, D-galactose, L-fucose, and D-xylose) or two amino
Glycans play a key role in protein structure and disease; representation on cell surfaces is the glycome.
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