利用亲水富集策略分析人血浆中N-糖基化蛋白及N-糖类型 = Analysis of N-glycosylated protein and N-glycans in human plasma by hydrophilic enrichment strategy
蛋白质的N- 糖基化是最重要的翻译后修饰之一, 许多已知的血浆肿瘤诊断标志物及治疗靶标都是N- 糖基化 蛋白。 针对血浆的糖蛋白质组研究有利于发现新的蛋白标志物。然而,血浆蛋白质浓度分布的动态范围非常宽,且同一位点上的糖链存在微观不均一性,影响了血浆中糖蛋白的鉴定效率。本文利用亲水材料ZIC-HILIC制备亲 水富集柱分别对人血浆中的N- 糖链和N- 糖肽进行富集,并结合碱性反相色谱进行肽段的预分离和高准确度质谱 分析,最终在健康人的血浆中鉴定到了 299 个糖基化蛋白、637 个糖基化位点,并识别出 31 种不同的糖型。在这些 鉴定到的糖基化位点中,新发现有 107 个 N- 糖基化位点(占...
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Main Authors: | 马成 Ma, Cheng, 潘一廷 Pan, Yiting, 张琪 Zhang, Qi, 王继峰 Wang, Jifeng, 钱小红 Qian, Xiaohong, 应万涛 Ying, Wantao |
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Other Authors: | School of Biological Sciences |
Format: | Article |
Language: | Chinese |
Published: |
2015
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Online Access: | https://hdl.handle.net/10356/106581 http://hdl.handle.net/10220/25055 http://www.chrom-china.com/EN/abstract/abstract13508.shtml |
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Institution: | Nanyang Technological University |
Language: | Chinese |
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