Mapping native disulfide bonds at a proteome scale
Mapping native disulfide bonds at a proteome scale
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在蛋白质组规模上绘制天然二硫键图谱。
DOI:
10.1038/nmeth.3283
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发表时间:
2015-04-01
期刊:
影响因子:
48
通讯作者:
Dong, Meng-Qiu
中科院分区:
文献类型:
--
作者:
Lu, Shan;Fan, Sheng-Bo;Dong, Meng-Qiu
We developed a high-throughput mass spectrometry method, pLink-SSSS (http://pfind.ict.ac.cn/software/pLink/2014/pLink-SS.html), for precise identification of disulfide-linked peptides. Using pLink-SSSS, we mapped all native disulfide bonds of a monoclonal antibody and ten standard proteins. We performed disulfide proteome analyses and identified 199 disulfide bonds in Escherichia coli and 568 in proteins secreted by human endothelial cells. We discovered many regulatory disulfide bonds involving catalytic or metal-binding cysteine residues.