Positional proteomics: selective recovery and analysis of N-terminal proteolytic peptides

Positional proteomics: selective recovery and analysis of N-terminal proteolytic peptides
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DOI:
10.1038/nmeth811
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发表时间:
2005-12-01
期刊:
影响因子:
48
通讯作者:
Beynon, RJ
Beynon, RJ
中科院分区:
生物学1区
文献类型:
--
作者:
McDonald, L;Robertson, DHL;Beynon, RJ

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自下而上的蛋白质组学是对来自单一蛋白质或蛋白质混合物的肽的分析,并且由于每种蛋白质产生数十种肽,因此存在控制复杂性降低的范围。我们在这里报告一个新的策略,选择性分离的N-末端肽的蛋白质混合物,产生位置定义的肽。该方法可以容忍几种碎片化方法,并且必须搜索的数据库基本上不那么复杂。
Bottom-up proteomics is the analysis of peptides derived from single proteins or protein mixtures, and because each protein generates tens of peptides, there is scope for controlled reduction in complexity. We report here a new strategy for selective isolation of the N-terminal peptides of a protein mixture, yielding positionally defined peptides. The method is tolerant of several fragmentation methods, and the databases that must be searched are substantially less complex.