title: Fractionation of ovalbumin glycopeptide AC-C by high-pressure liquid chromatography. Determination of structure by 1H-NMR spectroscopy.
abstract: We describe for the first time a method for the separation of intact ovalbumin glycopeptides by high-pressure liquid chromatography (HPLC). The separation was achieved using two reverse-phase columns connected in series and eluting with an isocratic solvent system at acid pH containing 1-hexane sulfonate. Ovalbumin glycopeptide fraction AC-C has been separated into at least four distinct glycopeptides. High resolution 1H-NMR spectroscopy has confirmed the reported structure of the two major species. We also extend our structural studies to the two other glycopeptides and establish the structure of a previously unreported ovalbumin glycopeptide, Man3GalGlcNAcAsn.
mesh_terms: D000818:Animals; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002645:Chickens; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D005260:Female; D006020:Glycopeptides / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D010047:Ovalbumin / Q000302:isolation & purification*; D010063:Ovum
chemical_list: D006020:Glycopeptides; D010047:Ovalbumin