Magnus J H, Kolset S O, Husby G
Institute of Medical Biology, University of Tromsø, Norway.
Ann Rheum Dis. 1991 Aug;50(8):562-6. doi: 10.1136/ard.50.8.562.
Glycosaminoglycans have previously been identified in extracts of AA type hepatic amyloid fibril from a patient with amyloidosis associated with juvenile rheumatoid arthritis. The macromolecular properties of these polysaccharides are described here in more detail. By gel filtration and ion exchange chromatography glycosaminoglycans in the form of high molecular weight free chains were shown to coisolate with water extracted amyloid fibrils. About 60% of these were characterised as galactosamines (chondroitin sulphate/dermatan sulphate), whereas the remaining 40% consisted of N-sulphated glucosamines (heparin/heparan sulphate). The amyloid associated glycosaminoglycans were not part of intact proteoglycans in the fibril extracts.
先前已在一名患有青少年类风湿性关节炎相关淀粉样变性病患者的AA型肝淀粉样原纤维提取物中鉴定出糖胺聚糖。本文更详细地描述了这些多糖的大分子特性。通过凝胶过滤和离子交换色谱法,显示出高分子量游离链形式的糖胺聚糖与水提取的淀粉样原纤维共分离。其中约60%被鉴定为半乳糖胺(硫酸软骨素/硫酸皮肤素),而其余40%由N-硫酸化葡糖胺(肝素/硫酸乙酰肝素)组成。淀粉样相关糖胺聚糖不是纤维提取物中完整蛋白聚糖的一部分。