An improved procedure has been developed for the rapid derivatization of oligosaccharides with UV-detectable p-nitrobenzylhydroxylamine (PNB). The improved conditions used result in quantitative derivatization of neutral oligosaccharides. Sialylated oligosaccharides can also be quantitatively PNB-derivatized without detectable desialylation. Of the oligosaccharides
Frontiers in microbiology, 9, 2333-2333 (2018-10-16)
2-Deoxy-scyllo-inosose (DOI) has been a valuable starting natural product for the manufacture of pharmaceuticals or chemical engineering resources such as pyranose catechol. DOI synthase, which uses glucose-6-phosphate (Glc6P) as a substrate for DOI biosynthesis, is indispensably involved in the initial
Journal of chromatography, 272(1), 9-20 (1983-01-14)
A new quantitative procedure for the high-performance liquid chromatographic (HPLC) resolution of human brain gangliosides employing reversed-phase chromatography is described. To provide a derivative which can be determined by UV absorption techniques, p-nitrobenzyloxyamine was coupled to the gangliosides. Derivatization involves
The abasic site is one of the most frequent changes occurring in DNA and has been shown to be lethal and mutagenic. An abasic site in DNA can be tagged by reaction with O-4-nitrobenzylhydroxylamine (NBHA), resulting in the formation of
Chemical research in toxicology, 19(2), 300-309 (2006-02-21)
A new method has been developed to accurately measure apurinic and apyrimidinic (AP) DNA damage sites, which are lesions in DNA formed by loss of a nucleobase from oxidative stress or carcinogen adducts. If AP sites are left unrepaired (or
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