title: Glycoprotein C of herpes simplex virus type 1: characterization of O-linked oligosaccharides.
abstract: In contrast to other viral glycoproteins, the herpes simplex virus (HSV) glycoprotein C(gC) binds to the N-acetylgalactosamine-specific Helix pomatia lectin (HPA). In the present paper gC was purified by affinity chromatography with monospecific antibodies and the purified glycoprotein was subjected to protease digestion. HPA-binding protease-resistant glycopeptides were isolated by lectin affinity chromatography. The isolated structures did not bind to concanavalin A and seemed to lack charged groups as determined by ion-exchange chromatography. In gel filtration, the glycopeptides appeared in two peaks with molecular weights higher than 4000. The HPA-binding structures of gC were synthesized in the presence of tunicamycin, indicating that they belong to the O-glycosyl class of oligosaccharides. In addition to HPA-binding oligosaccharides, synthesis of tunicamycin-resistant wheat germ lectin-binding gC oligosaccharides was demonstrable. These were sensitive to sialidase and apparently unrelated to the HPA-binding oligosaccharides.
mesh_terms: D002846:Chromatography, Affinity; D003208:Concanavalin A; D037102:Lectins; D008970:Molecular Weight; D019158:N-Acetylneuraminic Acid; D009844:Oligosaccharides / Q000032:analysis* / Q000378:metabolism; D012794:Sialic Acids / Q000032:analysis; D018139:Simplexvirus / Q000032:analysis*; D014415:Tunicamycin / Q000494:pharmacology; D014759:Viral Envelope Proteins; D014764:Viral Proteins / Q000032:analysis* / Q000302:isolation & purification; D014909:Wheat Germ Agglutinins
chemical_list: C038095:Helix lectin; D037102:Lectins; D009844:Oligosaccharides; D012794:Sialic Acids; D014759:Viral Envelope Proteins; D014764:Viral Proteins; D014909:Wheat Germ Agglutinins; C038535:glycoprotein gC, herpes simplex virus type 1; D003208:Concanavalin A; D014415:Tunicamycin; D019158:N-Acetylneuraminic Acid