Bhavanandan V P, Davidson E A
Proc Natl Acad Sci U S A. 1975 Jun;72(6):2032-6. doi: 10.1073/pnas.72.6.2032.
Mucopolysaccharides have been isolated, fractionated, and characterized from the nuclei of cultured B16 mouse melanoma cells grown in the presence of (3-H)-glucosamine and (35-S)sulfate. Digestion of the nuclei with DNase followed by Pronase gave a mixture of complex carbohydrates from which the mucopolysaccharides were isolated by precipitation with cetylpyridinium chloride. After fractionation by differential salt extraction and chromatography on controlled pore glass bead columns, the components were identified by chemical and enzymatic methods. The major polysaccharide components were a family of high-molecular-weight chondroitin sulfates with different degrees of sulfation; a minor component has been characterized as heparan sulfate.
在含有(3 - H)-葡萄糖胺和(35 - S)-硫酸盐的条件下培养的B16小鼠黑色素瘤细胞核中,已分离、分级并鉴定了粘多糖。先用脱氧核糖核酸酶消化细胞核,再用链霉蛋白酶处理,得到一种复合碳水化合物混合物,通过用十六烷基氯化吡啶沉淀从中分离出粘多糖。通过差示盐提取和在可控孔径玻璃珠柱上进行色谱分离后,用化学和酶学方法鉴定了各组分。主要的多糖组分是一族具有不同硫酸化程度的高分子量硫酸软骨素;一种次要组分已被鉴定为硫酸乙酰肝素。