Table I Glycosylation sites identified from the ETD data of intact glycopeptides

Glycosylation sites identified and the carbohydrate structure detected are printed in bold. Residues in parentheses represent the amino acid residues before and after the sequence stretch identified. They are included to demonstrate the extent of nonspecific cleavages.

Kininogen-1 precursor(C)126LITPAEGPVVT(GalNAcGalSA)AQY139(E)
(F)578KLIS(GalNAcGalSA)DFPETTSPK590(C)
Insulin-like growth factor II precursor(K)154S(GalNAcGalSA)HRPLIALPT(GalNAcGalSA)QDPATHGGASSK175(A)
Fibronectin(R)274HTSLQTT(GalNAcGalSA)SAGSGSFTDVR291(T)
α2-HS-glycoprotein precursor(S)291VVVGPS(GalNAcGalSA)VVAVPLPLHR306(A)
(F)330HVGKT(GalNAcGalSA)PIVGQPSIPGGPVR348(L)
(K)334TPIVGQPS(GalNAcGalSA)IPGGPVR348(L)
β2-Glycoprotein 1 precursor(A)20GRTC(carbamidomethyl)PKPDELPFST(GalNAcGal)VVPLKR39(T)
Apolipoprotein E precursor(R)209AAT(GalNAcGalSA)LSTLAGQPLLER223(A)
(L)303ALRPSPT(GalNAcGalSA)SPPSENH316(−)
Inter-α-trypsin inhibitor, heavy chain H1 precursor(R)636KTFMLQASQPAPT(GalNAcGalSA)HSSLDIK655(K)
Inter-α-trypsin inhibitor, heavy chain H4 precursor(R)702IKGTT(GalNAcGalSA)PT(GalNAcGalSA)ALPFAPVQAPSVILPLPGQSVDR731(L)
Pantetheinase precursor(R)500LNPKT(GalNAcGalSA)DAWKS510(−)
Fetuin-B precursor(K)284TEELQQQNTAPT(GalNAcGal)NSPTK300(A)
Plasma serine protease inhibitor precursor(K)27IQEVPPAVT(GalNAcGalSA)TAPPGSR42(A)