Strecker G, Ollier-Hartmann M P, van Halbeek H, Vliegenthart J F, Montreuil J, Hartmann L
C R Acad Sci III. 1985;301(11):571-6.
The primary structural analysis of O- and N-linked carbohydrate chains of the C-1-esterase inhibitor purified from normal serum was carried out by 400-MHz 1H-NMR spectroscopy. C-1-esterase inhibitor protein of a molecular weight of 116,000 daltons contains 24 O-glycans: NeuAc (alpha 2-3) Gal (beta 1-3) GalNAc, 4 N-glycans: NeuAc (alpha 2-6) Gal (beta 1-4) (GlcNAc (beta 1-2) Man (alpha 1-3) [NeuAc (alpha 2-6) Gal (beta 1-4) GlcNAc (beta 1-2) Man (alpha 1-6)] Man (beta 1-4) GlcNAc (beta 1-4) GlcNAc and 2 N-glycans: NeuAc (alpha 2-3) Gal (beta 1-4) GlcNAc (beta 1-2) Man (alpha 1-3) [NeuAc (alpha 2-3) Gal (beta 1-4) GlcNAc (beta 1-2) Man (alpha 1-6)] Man (beta 1-4) GlcNAc (beta 1-4) GlcNAc. 30% of the N-glycans are fucosylated.
采用400兆赫的1H-NMR光谱法对从正常血清中纯化的C-1酯酶抑制剂的O-连接和N-连接碳水化合物链进行了一级结构分析。分子量为116,000道尔顿的C-1酯酶抑制剂蛋白含有24个O-聚糖:NeuAc(α2-3)Gal(β1-3)GalNAc,4个N-聚糖:NeuAc(α2-6)Gal(β1-4)(GlcNAc(β1-2)Man(α1-3)[NeuAc(α2-6)Gal(β1-4)GlcNAc(β1-2)Man(α1-6)]Man(β1-4)GlcNAc(β1-4)GlcNAc以及2个N-聚糖:NeuAc(α2-3)Gal(β1-4)GlcNAc(β1-2)Man(α1-3)[NeuAc(α2-3)Gal(β1-4)GlcNAc(β1-2)Man(α1-6)]Man(β1-4)GlcNAc(β1-4)GlcNAc。30%的N-聚糖被岩藻糖基化。