Carboxylate-Selective Chemical Cross-Linkers for Mass Spectrometric Analysis of Protein Structures
文献类型：期刊论文
| 作者 | Zhang, Xiaoyun1,2; Wang, Jian-Hua3,4,5; Tan, Dan5; Li, Qiang1,2; Li, Maodong6; Gong, Zhou7; Tang, Chun7; Liu, Zhirong6; Dong, Meng-Qiu3,4,5; Lei, Xiaoguang1,2 |
| 刊名 | ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2018-01-16 |
| 卷号 | 90期号:2页码:1195-1201 |
| ISSN号 | 0003-2700 |
| DOI | 10.1021/acs.analchem.7b03789 |
| 英文摘要 | Chemical cross-linking coupled with mass spectrometry (CXMS) facilitates structural analysis, of proteins. As current CXMS applications are almost exclusively limitedto lysine residues, they Can only retrieve a small pOrtion of the structural information theoretically accessibleto CXMS. Chemical: cross-linkers targeting the acidic residues Asp/Glu could greatly enhance the power of CXMS. However, it has been difficult to develop chemistries that offer selectivity and efficiency under physiological conditions. Here, we report a class of carboxylate-selective diazo-containing cross-linkers (Diazoker) of which Diazoker 1, with a spacer arm consisting of two ethan1,2-diol units, is the best example. Unlike previously developed carboxylateselective cross-linkers like pimelic acid dihydrazide (PDH), Diazoker 1 does not require a coupling reagent. We tested Diazoker 1 on nine model proteins and found that Diazoker 1 generated an average of 73 cross-linked peptide pairs per protein. Although this is 32% fewer than the number generated by PDH, the Diazoker 1 cross-links have a'higher rate of compatibility with protein crystal structures. From a more complex protein mixture, Diazoker 1 and PDH identified 75 and 76 cross-linked peptide pairs, respectively. The Asp/Glu residues cross-linked by Diazoker 1 are not the same as those cross-linked by PDH. Diazoker 1 favors acidic residues that are less exposed to solvent. In conclusion, Diazoker 1 is complementary to existing cross-linkers and expands the toolkit of CXMS for structural analysis of proteins. |
| 语种 | 英语 |
| WOS记录号 | WOS:000423011600024 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45379]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Dong, Meng-Qiu; Lei, Xiaoguang |
| 作者单位 | 1.Peking Univ, Beijing Natl Lab Mol Sci,Minist Educ, Key Lab Bioorgan Chem & Mol Engn,Dept Chem Biol, Coll Chem & Mol Engn,Synthet & Funct Biomol Ctr, Beijing 100871, Peoples R China 2.Peking Univ, Peking Tsinghua Ctr Life Sci, Beijing 100871, Peoples R China 3.Peking Union Med Coll, Grad Sch, Beijing 100730, Peoples R China 4.Chinese Acad Med Sci, Beijing 100730, Peoples R China 5.NIBS, Beijing 102206, Peoples R China 6.Peking Univ, Coll Chem & Mol Engn, Ctr Quantitat Biol, Beijing 100871, Peoples R China 7.Chinese Acad Sci, CAS Key Lab Magnet Resonance Biol Syst, State Key Lab Magnet Resonance & Atom Mol Phys, Natl Ctr Magnet Resonance Wuhan,Wuhan Inst Phys &, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaoyun,Wang, Jian-Hua,Tan, Dan,et al. Carboxylate-Selective Chemical Cross-Linkers for Mass Spectrometric Analysis of Protein Structures[J]. ANALYTICAL CHEMISTRY,2018,90(2):1195-1201. |
| APA | Zhang, Xiaoyun.,Wang, Jian-Hua.,Tan, Dan.,Li, Qiang.,Li, Maodong.,...&Lei, Xiaoguang.(2018).Carboxylate-Selective Chemical Cross-Linkers for Mass Spectrometric Analysis of Protein Structures.ANALYTICAL CHEMISTRY,90(2),1195-1201. |
| MLA | Zhang, Xiaoyun,et al."Carboxylate-Selective Chemical Cross-Linkers for Mass Spectrometric Analysis of Protein Structures".ANALYTICAL CHEMISTRY 90.2(2018):1195-1201. |
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来源：化学研究所
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